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HomeMy WebLinkAboutWF-99-017500 West 29th Avenue The City of Wheat Ridge, Colorado 80215 Wheat FAX 303/235-2857 February 2, 2000 Ms. Wendy Ammon Storrer 3375 Union Street Wheat Ridge, CO 80033-2932 RE: WF*01 Dear Ms. Storrer: Ridge Please be advised that at its meeting of January 27, 2000, the Board of Adjustment APPROVED, subject to conditions, your request for a Class II Flood Plain Exception to construct a single-family residence on piers within the Flood Storage District on property located at 3365 Union Street. Attached is a copy of the Certificate of Resolution stating the Board's decision which became effective the date of the meeting. Should you decide to appeal the decision of the Board, you will need to notify the Jefferson County district court in writing within 30 days of the Board's decision. Please feel free to contact me at (303) 235-2846 if you have any questions. Sincerely, `X/u _ Barbara Delgadillo Senior Secretary /bd Attachment: Certificate of Resolution cc: WF-W-01 C:\Barbm\BOA\CORRESP\wt000I .wpd CERTIFICATE OF RESOLUTION I, Ann Lazzeri, Secretary to the City of Wheat Ridge Board of Adjustment, do hereby certify that the following Resolution was duly adopted in the City of Wheat Ridge, County of Jefferson, State of Colorado on the 27th day of January, 2000. CASE NO: WF~Ol APPLICANT'S NAME: Lee Storrer and Wendy Ammon Storrer LOCATION: 3365 Union Street Upon a motion by Board Member ABBOTT and second by Board Member HOVLAND, the following resolution was stated: WHEREAS, the applicant was denied permission by an administrative officer; and WHEREAS, Board of Adjustment Application Case No. WF-00-01 is an appeal to this Board from the decision of an administrative officer; and WHEREAS, the property has been posted the fifteen days required by law, and in recognition that there were no written protests registered against it, but also in recognition that there were verbal concerns expressed to this Board from adjacent neighbors; WHEREAS, the relief applied for may be granted without substantially impairing the intent and purpose of the regulations governing the City of Wheat Ridge. NOW, THEREFORE, BE IT RESOLVED that Board of Adjustment Application Case No. WF-00-01 be, and hereby is, APPROVED. FOR THE FOLLOWING REASONS: 1. The property in question is zoned Residential 1-A and the proposed use of the property for a single family dwelling is permitted as a principal use in that district. The lot is of sufficient size for the district in that it exceeds the minimum requirements for lot area and width. The property is located within the single family residential area; therefore, the proposed use is compatible with the surrounding neighborhood and is in conformance with the City's Comprehensive Plan. 2. Referrals were sent to Bob Goebel, Director of Public Works and Flood Plain Administrator, and to Bill DeGroot, Chief of the Flood Plain Management Program for the Urban Drainage and Flood Control District. Mr. DeGroot responded with no objections as long as the proposed first floor is a minimum of one foot above the 100- year flood plain elevation. Upon completion of his review of the application, Mr. Goebel outlined his findings in a letter dated December 6, 1999 (attachment 7): "It is a requirement of the Flood Storage District that the first floor elevation be established a minimum of one foot above the base flood elevation. Therefore the lowest part of the structure, supported by the piers, shall be at a minimum elevation of 5, 447.1 feet above sea level." This elevation will be verified during construction and an elevation certificate from a professional land surveyor must be submitted prior to issuance of a certificate of occupancy. WITH THE FOLLOWING CONDITIONS: All engineering provisions as set forth in the letter from Bob Goebel, Director of Public Works, as submitted to the Board shall be complied with to the satisfaction of the city. 2. No storage of any kind, fence, playground equipment or any other item which could in any way impact the flood storage area or the flood way shall occur within the flood storage area or flood way portion of this property. This shall include areas under the elevated portion of this structure. 3. Bob Goebel, Director of Public Works, shall review the engineering questions outlined in a letter to the Board, dated January 26, 2000 from William G. Polivka, 12001 West 32nd Drive and determine their merit as related to this case. VOTE: YES: ABBOTT, BROWN, HOVLAND, HOWARD, JUNKER, MAURO, THIESSEN NO: ECHELMEYER DISPOSITION: A Class II Flood Plain Special Exception Permit to construct a single family residence on piers within the Flood Storage District was APPROVED. ADOPTED and made effective this 27th day of January, 2000. BOB HOWARD, Chairman Ann Lazzeri, Secr6 ary Board of Adjustment Board of Adjustment CITY OF WHEAT RIDGE BOARD OF ADJUSTMENT Minutes of Meeting January 27, 2000 1. CALL THE MEETING TO ORDER: The meeting was called to order by Chair HOWARD at 7:30 p.m. on January 27, 2000 in the Council Chambers of the Municipal Building, 7500 West 29th Avenue, Wheat Ridge, Colorado. 2. ROLL CALL Members Present: Tom Abbott Michelle Brown Bill Echelmeyer Bob Howard Paul Hovland Susan Junker Linda Mauro Karen Thiessen Staff Present: Meredith Reckert, Sr. Planner Mary Austin, Planner Bob Goebel, Public Works Director/Flood Plain Administrator Ann Lazzeri, Secretary The following is. the official set of Board of Adjustment minutes for the Public Hearing of January 27, 2000. A set of these minutes is retained both in the office of the City Clerk and in the Department of Planning and Development of the City of Wheat Ridge. 3. APPROVE THE ORDER OF THE AGENDA It was the consensus of the Board to approve the order of the agenda. 4. PUBLIC FORUM (This is the time for anyone to speak on any subject not appearing on the agenda.) There was no one signed up to speak. 5. PUBLIC HEARING A. Case No. WF-99-01: An application by John and Wendy Ammon Storrer for a Class II flood plain exception to construct a single family residence on piers within the 100-year Flood Plain Flood Storage District. The property is zoned R-lA and located at 3365 Union Street. Board of Adjustment Page 1 01/27/00 This case was presented by Mary Austin. She reviewed the staff report, presented slides and overheads of the subject property and entered all pertinent documents into the record. She advised that all notification and posting requirements had been met and there was jurisdiction for the Board to hear the case. Staff recommended approval for reasons outlined in the staff report. Following brief discussion, the applicant appeared before the Board. Lee Storrer 3365 Union Street Mr. Storrer was sworn by Chair HOWARD. He stated his desire for approval of his application. In response to a question from Board Member ECHELMEYER, Mr. Storrer explained that the line of trees was within his property line by approximately ten feet. He also demonstrated the location of the proposed house on the overhead. In response to a question from Chair HOWARD, Mr. Storrer replied that there would be no basement in the house. Mr. Goebel invited questions from the Board. Board Member ABBOTT asked if the code administrator's concerns mentioned in the staff report had been resolved. Mr. Goebel replied that his concern was related to whether or not the proposed dwelling fell under the definition of "structure for human occupancy." This is a unique situation; the house will be constructed so that the house itself will be above the flood plain level. But because the foundation piers for the structural occupancy portion was in the flood plain, the codes administrator felt it should come before the Board of Adjustment for proper review. Board Member MAURO referred to previous discussions which indicated a new flood plain would be defined for this area. Mr. Goebel.replied that in 1994-95 there was a problem with the Lena Gulch channel that flowed behind these properties from 32nd Avenue. Through the city's maintenance contract with Urban Drainage and Flood Control District (UDFCD) Lena Gulch was improved by widening the channel, making it somewhat deeper and wider and installing rock lining to stabilize the bank. These improvements were accomplished and have reduced the flood plain. However, the city must abide by the old flood plain until a flood plain study is completed and an amendment to that flood plain map takes place. Board Member ABBOTT asked if there would be restrictions regarding outside storage, solid fences, etc. that could trap debris during a flood. Mr. Goebel replied that fences would not be allowed unless it could be proven that the fence is of a break-away design that would not affect water flow. Further, the elevated portion of the house would be in an area of low velocity rather than in the flood way. He also explained that the piers were designed to prevent damming of debris; and, further, the requirement for one foot of free board above the water surface elevation to the bottom of the beam holding the house up would also allow for debris to pass through. Board of Adjustment Paget 01/27/00 Elizabeth Polivka 12001 West 32nd Drive Ms. Polivka was sworn by Chair HOWARD. She stated that her residence was to the south and across the creek from the proposed structure. She submitted a letter from her husband (who was unable to attend the meeting) stating opposition to the application. Mr. Polivka's objections were based upon his evaluation of the hydrologic analysis prepared by the applicant's engineer in his capacity as a geologist. His letter was made a part of the record. She stated that her husband has had contact with Bob Goebel concerning this matter. She also testified that she had seen a video (taken before they purchased their house) showing flood waters coming very close to the rear of their home. She stated that her husband has also contacted UDFCD regarding this matter. Mr. Goebel stated that he met with the Polivka family the night before this meeting and walked the property. He stated that the video she referred to was made before channel improvements took place. The channel improvements should prevent flood waters from coming so close to their house. Mr. Goebel stated that he took the highest water surface elevation (determined to be the result of a 100-year storm) and added a foot to that to determine the bottom of the beam that supports the house. Board Member ECHELMEYER stated that he saw a large accumulation of driftwood located where the stream bends to the northeast. In response to a question from Board Member ECHELMEYER, Mr. Goebel stated that he didn't talk to neighbors to the north or south of the property other than the Polivka's. Marie Osse 12061 West 32nd Drive Ms. Osse was sworn by Chair HOWARD. She stated her opposition to the application. She did not believe a house should be built in this flood plain area. She referred to three major floods which have occurred on her property since it was purchased in 1962; however, channel improvements have taken place since that time. She also noted that there is a ten- foot easement on the north side of Lena Gulch for the Colorado Ditch Company and she thought the row of trees mentioned earlier by Board Member ECHELMEYER may represent the property line. She also stated that, since channel improvements have taken place, the proposed house could probably be worked out, but she wanted to make sure the Storrer's weren't using any property that was in the easement. Board Member ECHELMEYER asked why there were no written protests to this application. Ms. Polivka replied that they were not notified of the application. Meredith Reckert explained that, in addition to publishing the application, the city is only required notify adjacent property owners and such notification took place. Board Member ABBOTT asked Mr. Goebel if Mr. Polivka's questions had been resolved during their meeting. Mr. Goebel replied that he didn't believe all of the questions had been Board of Adjustment Page 3 01/27/00 resolved and, therefore, he suggested that Mr. Polivka write a letter to the Board since he would not be able to attend the meeting. Ms. Osse stated that flood waters topped the rock barriers two years ago and came up to her patio which is adjacent to the stream. She asked the Board to consider that all the properties upstream from the proposed structure could be affected. Ms. Polivka stated their concern with the piers which could cause debris to back up and create a damming effect during a 100-year flood. John Stephens 12060 West 32nd Drive Mr. Stephens was sworn by Chair HOWARD. He stated his opposition to building the subject house in a flood plain. He was also concerned about debris backing up against the piers during a flood. He stated that he has seen flood waters come above the rocks and also go over 32nd Avenue. Board Member ABBOTT asked for Mr. Goebel's opinion regarding government flood plain elevations as opposed to resident's who testify that they have seen water higher than the government lines show. Mr. Goebel replied that, as an engineer, he can only address technical elements and the board must determine philosophical issues. Mr. Goebel explained that the flood plain boundary is based on rainfall data, calculations, etc. Board Member ABBOTT asked how a dam break would compare to a 100-year flood. Mr. Goebel replied that a dam break would be of greater velocity and waters would rise more quickly than in a 100 year flood. David Osse 12061 West 32nd Drive Mr. Osse was sworn by Chair HOWARD. He stated that he believed it was necessary to change the flood plain boundaries to match up with the Lena Gulch improvements. Marie Osse returned to the podium and asked why the channel improvements stopped at Lewis Meadows City-owned open space to the east of the subject property. Mr. Goebel stated that there were plans to continue channel improvements through the Lewis Meadows area, but when the City purchased the area for open space, it was decided to leave the area in a natural condition. -If requested to do so, staff would approach City Council about improving the flood channel through this area. Stan Ankoviak 12141 West 32nd Drive Mr. Ankoviak was sworn by Chair HOWARD. He expressed opposition to the application and expressed concern about the piers catching debris and causing a damming situation. Board of Adjustment Page 4 01/27/00 Doug Trieste 14372 West Yale Place Mr. Trieste was sworn by Chair HOWARD. He stated that he was the hydrologic engineer for the applicant. He commented that the Federal Emergency Management Association (FEMA) has a strict set of rules to serve as guidelines. He stated that those rules were followed to the letter in this case, and the proposed house meets all those standards. Studies show clearly that Mr. Storrer's property is completely out of the flood way and the piers in question would receive a maximum of 1.1 feet of water during a 100 year flood with velocities of 2 feet per second. He noted that one foot of water cannot float large pieces of debris. Board Member ECHELMEYER asked to know Mr. Trieste's credentials. Mr. Trieste stated that he worked with the Bureau of Reclamation for fifteen years as a flood plain specialist and hydraulics engineer. Board Member ECHELMEYER expressed concern about the difference between flood plain guidelines and testimony from residents in the area concerning water in their yards. Board Member THIESSEN responded to Mr. Trieste's comments and stated that, although the Board does not have the jurisdiction to make flood plain regulations, the fact that a property meets a certain criteria is not a guarantee that a property will receive a special exceptions permit. The case has to be made to the Board that the application will not be detrimental to the area; and, while an application meets certain criteria, there may be some philosophical and-precedence problems associated with the application. The Board must decide if the application will be detrimental to the area. Meredith Reckert suggested that if the Board felt a need to receive further information, the hearing could be continued until the information received from Ms. Polivka could be evaluated by the applicant's engineer. Ms. Polivka indicated that she would be in favor of continuance so that her husband could testify in person. Mr. Storrer indicated that he did not desire a continuance. Upon a motion by Board Member ABBOTT and second by Board Member HOVLAND, the following resolution was stated: Whereas, the applicant was denied permission by an administrative officer; and Whereas, Board of Adjustment Application Case No, WF-99-01 is an appeal to this Board from the decision of an administrative officer; and Board of Adjustment Page 01/27/00 Whereas, the property has been posted the fifteen days required by law, and in recognition that there were no written protests registered against it, but also in recognition that there were verbal concerns expressed to this Board from adjacent neighbors; Whereas, the relief applied for may be granted without substantially impairing the intent and purpose of the regulations governing the City of Wheat Ridge. Now, therefore, be it resolved that Board of Adjustment Application Case No. WF-99-01 be, and hereby is, approved. Type of Exception: Request for a class II flood plain special exception permit to construct a single-family dwelling on piers within the flood storage district. For the following reasons: The property in question is zoned Residential 1-A and the proposed use of the property for a single family dwelling is permitted as a principal use in that district. The lot is of sufficient size for the district in that it exceeds the minimum requirements for lot area and width. The property is located within the single family residential area; therefore, the proposed use is compatible with the surrounding neighborhood and is in conformance with the City's Comprehensive Plan. 2. Referrals were sent to Bob Goebel, Director of Public Works and Flood Plain Administrator, and to Bill DeGroot, Chief of the Flood Plain Management Program for the Urban Drainage and Flood Control District. Mr. DeGroot responded with no objections as long as the proposed first floor is a minimum of one foot above the 100-year flood plain elevation. 3. Upon completion of his review of the application, Mr. Goebel outlined his findings in a letter dated December 6, 1999 (attachment 7): "It is a requirement of the Flood Storage District that the first floor elevation be established a minimum of one foot above the base flood elevation. Therefore the lowest part of the structure, supported by the piers, shall be at a minimum elevation of 5, 447.1 feet above sea level." This elevation will be verified during construction and an elevation certificate from a professional land surveyor must be submitted prior to issuance of a certificate of occupancy. With the following conditions: All engineering provisions as set forth in the letter from Bob Goebel, Director of Public Works, as submitted to the Board shall be complied with to the satisfaction of the city. Board of Adjustment 01/27/00 2. No storage of any kind, fence, playground equipment or any other item which could in any way impact the flood storage area or the flood way shall occur within the flood storage area or flood way portion of this property. This shall include areas under the elevated portion of this structure. 3. Bob Goebel, Director of Public Works, shall review the engineering questions outlined in a letter to the Board, dated January 26, 2000 from William G. Polivka, 12001 West 32nd Drive and determine their merit as related to this case. Board Member THIESSEN questioned the accuracy of the elevation figure of 5,447.1 feet. Bob Goebel stated that he would verify the elevation to make sure that it is one foot above the highest water surface point on the property. Board Member ABBOTT commented that if Mr. Goebel's review of Mr. Polivka's letter reveals a negative impact, the matter would come back to the Board of Adjustment. Mr. Trieste commented that the one-foot elevation as defined by FEMA cannot be changed. Board Member ECHELMEYER stated that he would vote against the motion based on his obligation to the surrounding neighbors in regard to potential flooding problems. Board Member THIESSEN asked what the applicant's options would be if the application were to be denied. Meredith Reckert explained that the applicant could appeal to the District Court. Also, if he changed the application and brought in new information, he could reapply. A vote was taken on the motion which carried by a vote of 7-1, with Board Member ECHELMEYER voting opposed. Chair HOWARD advised Mr. Storrer that his application had been approved (Chair HOWARD declared a recess at 9:15 p.m. The meeting was reconvened at 9:20 p.m.) B. Case No. WA-99-28: An application submitted by Jeff Nielsen for approval of a 10-foot side yard setback variance from the 15-foot side yard setback requirement in an R-1 zone district for the purpose of constructing a 24-foot by 24-foot detached garage on property located at 3281 Routt Street. This case was presented by Mary Austin. She reviewed the staff report, presented slides and overheads of the subject property and answered the criteria involved in granting a variance. All pertinent documents were entered into the record. She advised that all notification and posting requirements had been met and the Board had jurisdiction to hear the case. Staff recommended denial of the application for reasons outlined in the staff report. Board of Adjustment Page 7 01/27/00 PUBLIC HEARING ROSTER Case No. V r- -19-01 A?>°~(C~uT' LfJ~ND Date: REQUEST: <I/9 sNn lJ - C cross LCk January 27, 2000 2/J /C/Jicl t- ec /a - G'o s ~cuc Si F/t c - f /c25 - ~3Gr ~i A 1,.) S?' Name 80- b1' fOkkA (Please print) Address/Phone In Favor/Opposed %a00/ 14j. n0 IAI 3 03 ~p 3s- r i'7 3 N~ ~ a 61 S'T Gd /~v. 3~l p d°/' o s J ~SCYJ SW~~ A 4K-60 K, /2-1v1 LJ 3-z OY2 L~~ ~~~c~r r a; 33--5 Ur1 0~l S~ ~`~G~ W~~dy s r~ 33~ 5 Un;o,--A -2-~ T-4 yo12 fig; r2~c~ ~33s ---In.1 /A r ~,r ~o~ st r~ CITY OF WHEAT RIDGE PLANNING DIVISION STAFF REPORT TO: Board of Adjustment DATE OF MEETING: January27, 2000 DATE PREPARED: January 20, 2000 CASE NO. & NAME: WF-99-01/Storrer CASE MANAGER: Mary Austin ACTION REQUESTED: Request for a Class If Flood Plain exception to construct a Single Family Dwelling on piers within the Flood Storage District. LOCATION OF REQUEST: NAME & ADDRESS OF APPLICANT(S): NAME & ADDRESS OF OWNER(S): APPROXIMATE AREA: PRESENT ZONING: PRESENT LAND USE: SURROUNDING ZONING: SURROUNDING LAND USE: 3365 Union Street Lee Storrer and Wendy (Ammon) Storrer 3375 Union Street Wheat Ridge, CO 80033 Same as Above 11,720 ft.' R-lA, Residential-One A Vacant N: and W: Residential-One A, S: and E: Residential-One N:, S:, and W: Single Family Residential E: Vacant COMPREHENSIVE PLAN FOR THE AREA: Single Family Residential (4 do's per acre) DATE PUBLISHED: January 7, 2000 DATE POSTED: January 13, 2000 DATED LEGAL NOTICES SENT: December 29, 1999 ENTER INTO RECORD: ( ) COMPREHENSIVE PLAN (X) CASE FILE & PACKET MATERIALS (X) ZONING ORDINANCE (X) SLIDES ( ) SUBDIVISION REGULATIONS (X) EXHIBITS ( ) OTHER The property is within the City of Wheat Ridge, and all notification and posting requirements have been met, therefore, there is jurisdiction to hear this case. I. REQUEST The property in question is located at 3365 Union Street and is currently vacant. The property is zoned R-1A, Residential-One A. (Attachment 1, Zoning Map). The applicant (owner) is requesting approval of a Class II Flood Plain Special Exception permit (Attachment 2, Application, Attachment 3, Deed and Attachment 4, Plat). The purpose of the request is to allow for the construction of a single family dwelling on piers within the flood storage district. (Attachment 5, Site Plan and Attachment 6, Aerial with Flood Plain Delineation). II. APPLICATION REVIEW According to the FEMA Flood Insurance Rate Map, a portion of the property is located within the Lena Gulch 100-year flood plain. After review of the applicant's initial submittal, it was determined by Darin Morgan, Codes Administrator, and Bob Goebel, Public Works Director and Flood Plain Administrator, that the proposed piers located within the Flood Storage District act as a foundation for a structure for human occupancy. Pursuant to Section 26-206 (D), of the Wheat Ridge Code of Laws, a Class II Special Exemption Permit issued by the Board of Adjustment is required for structures for human occupancy. Referrals were sent to Bob Goebel, Director of Public Works and Flood Plain Administrator, and to the Urban Drainage and Flood Control District. Bill DeGroot, Chief of the Flood Plain Management Program for the Urban Drainage and Flood Control District, responded with no objections as long as the proposed first floor is a minimum of one foot above the 100-year flood plain elevation. Upon completion of his review of the application, Bob Goebel outlined his findings in a letter dated December 6, 1999 (Attachment 7, Letter). It is a requirement of the Flood Storage District that the finished floor elevation be established a minimum of one foot above the base flood elevation. Therefore, the lowest part of the structure supported by the piers shall be at a minimum elevation of 5,447.1 feet above sea level. This elevation will be verified during construction and an Elevation Certificate from a Professional Land Surveyor must be submitted prior to issuance of a Certificate of Occupancy. It is the opinion of the Flood Plain Administrator that the piers are the same as bridge piers within a stream and that they need to be designed with the same considerations. As required by the Public Works Department, the structural design of the piers must include an analysis of flows around the base of the piers. The design requirements will be sent from Public Works to the Building Department and made part of the building permit. The property in question is zoned Residential-One A and the proposed use of the property for a single family dwelling is a permitted principal use in that district. The lot is of sufficient size for the district in that it exceeds the minimum requirements for lot area and width. The property is located within a single family residential area. Therefore, the proposed use is compatible with the surrounding neighborhood. The use is also in conformance with the City's Comprehensive Plan. Board of Adjustment WF-99-O1/Storrer Page 2 III. STAFF CONCLUSIONS AND RECOMMENDATION Upon review of the above request, staff concludes that the proposed construction of the single family home on piers within the Flood Control District will not have a negative impact on the existing 100- year flood plain. According to Flood Plain Administrator, Bob Goebel, the request has met the requirements of the Flood Plain Ordinance. Therefore, staff recommends APPROVAL for the following reasons: 1. Approval of the request should not have a detrimental impact on the existing 100-year flood plain. 2. The requirements of the Flood Plain Ordinance have been met. 3. Bob Goebel, Flood Plain Administrator for the City of Wheat Ridge, recommends approval of the special exemption permit. Board of Adjustment Page 3 WF-99-01/Storrer )4-3 II LAKEWOOD OFFICIAL ZONING MAP WHEAT RI D6E COLORADO MAP ADOPTED: fume 15, 1994 Last Revision: November 10, 1997 100-YEAR FLOOD PLAIN (APPROXIMATE LOCATION) ZONE D157RICT BOUNDRY PARCEL/LOT BOUNDRY (DESIGNATES OWNERSHIP) CITY LIMIT LINE WATER FEATURE DENOTES MULTIPLE ADDRE55E5 N 29 eram o w wo a» voo .co SCALE 1=400 ATTACHMENT 1 RTNB4i OF PWM% AND DE+~OW T - 2359851 12/28/1999 17:52 3032383986 AMMON, WENDY J. PAGE 02 WrICLAIM DUO THISDLLgm~.dethb 711 doyaf fAA)14VF .a000. betwan 7~9RAiJCE ~ p-TM//l~~ oftae -caooty, or TrF`efisa4) sod suetc of COW,eo. pamm(al and LEE Fr Ab 6)aVP .T. 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STATE OF COLORADO CAatar °f ' h7t4 'SOril The foregoing imtrumem was arlaowww before roe this by f- 7' k day f ~.1-lt I.J a Ilomenyhsodand OMtlH My conam4goo eapim: m V♦pw.a bw.s"M a.r. , X000 ~l'l tiny No 933. Wt 494. QralCWml)g® math Pdfi&aa1]tl Wale 1. Gower. C01P303._ tmal 292-4=-F99 4-~p ATTACHMENT 3 RECEPTION NO, F1003075 1/11/2000 13139111 POI 001-001 PAGE F£E1 5.00 DOC.F£Es 0.00 RECORDED IN JEFFERSON COUNTY, COLORADO and Suite of Colm k gramedsL r.~ lz I t~ ,t€ Yr f r \ 4 J R tR R y 1. 1 IT., T', 11 i, "J 0 P e' ~ J3 r , 7. ; Sa p, 1 '1,C c ~1 ry[ 1i ~~G 3 t 'h.. w ~3~ 1 r & y i~' t RS:~tl tar 4l;j [ t~&t~~~ ~x e o i e w a y r n A i yak "rani` S c sj.,vi, s5Y3/Y r r ~,lm m akt Y ou r Y z!'+'c r~prf `x9 T Cw vS /4`-' IA I vt~ 1 'lx lco y. yet k~~~ ~ sv y. .~~Ar~~i [x~ r i Y l£ r r rr: i n4y 7fi{ti 4 1v y t. ! 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S w 3 ro °.a> - C V ~ ~I ~ < 4 l Y.w x te 5 r DM I. ~ , ~ . e ~ a ~ ~ , „ s ab a w t , kY 4rt T ~L y r tY : x ~ tm?' a ~ If ~ 1 5 + . i ti `1r w ~ z P I. 7 Y e ~k~ ~ r f ~C 1 h ka~ V~ y1 i; ATTACHMENT 4- t.,_..-~. pro. or / o - _ p op it 0 I o - r-- II ~ ' I • , - ~ iY1.OGR Obi - L ru?iF AP.*~J~ ~ " I~ h CII -ti u " 0 A-11T 7500 WEST 29TH AVENUE WHEAT RIDGE, COLORADO 80215 December 6, 1999 Douglas J. Trieste Flow Technologies P.O. Box 260595 Lakewood, Colorado 80226 Re: Lee Storrer Property Lena Gulch at Union Street / North Bank Dear Mr. Trieste; The City of ~OF WHEgT~ Wheat " , "'Ridge C, 010 R ADO I have completed my review of the proposed piers to be placed within the 100 year flood plain at the referenced location. Your calculations have sufficiently determined that the piers are not within the Floodway District, but rather within the Flood Storage District. After review of this submittal with the Codes Administrator, he feels very uncomfortable calling these piers structures for non-human occupancy when they support and are the foundation for a single family residence which is for human occupancy. Therefore, a Class II Special Exception will be required by the Board of Adjustment. We can schedule this for their January 27, 2000 meeting. The information which you have provided is adequate for the materials which are required for the Board of Adjustment. I will forward a recommendation of approval to them to allow this construction. Technically, it meets our requirement, yet they may have some philosophical and precedence problems with this. The structural adequacy of these piers during flood conditions is extremely important. Several conditions must be placed on this approval to ensure their structural and hydrodynamic capability and long term durability. Actual construction and permit approval is subject to the conditions listed below. The structural design of the piers must include analysis of flows around the base of the piers. This design must account for several things. These are: ❑ Scour protection at their base. ❑ Load design for hydrodynamic pressure from the upstream side based on your volume and velocity calculations. ❑ Load design for potential debris floating down the stream and impacting these support structures. ❑ The depth and anchorage of the piers to withstand these forces. ❑ Possible installation of shear plates on the upstream side of the piers to ATTACHMENT 7 14-/D (303) 234.5900 • ADMINISTRATION FAX: 234-5924 POLICE DEPARTMENT FAX: 235-2949 Page 2 Mr. Trieste Flow Technologies facilitate debris break-up. ❑ The possible installation of shear piers upstream of the proposed structure to facilitate debris break-up in advance of the structure. These piers are in essence the same as bridge piers within a stream and should be designed with the same considerations. These requirements will be forwarded to the Building Department and will be made a part of the Building Permit. The base flood elevation for this analysis is the highest water surface elevation at the west end of the site. Based on your cross section data, this shall be 5446.41 feet above sea level. Therefore, the lowest point of the structure above these piers and supported by these piers shall be at least one foot above this elevation which is 5447.41 feet above sea level. During construction, this elevation must be verified and the same datum used. Prior to issuance of the Certificate of Occupancy, you must submit to me an Elevation Certificate stamped by a Professional Land Surveyor licensed in the State of Colorado. If an adjustment in datum must be made, the backup information and analysis must be submitted prior to approval and issuance of the Building Permit. If you have any questions, please feel free to call me at 303-235-2860. Very truly yours, Robert Goebel, P.E. Director of Public Works Flood Plain Administrator c: Darin Morgan, Codes Administrator Meredith Reckert, A.I.C.P., Senior Planner ,4-( P 7500 West 29th Avenue The City of Wheat Ridge, Colorado 80215 Wheat Ridg FAX 303/235-2857 January 4, 2000 Dear Property Owner: This is to inform you that Case No. WF-99-01 which is a request for approval of a Class II flood plain exception to construct a single-family residence on piers within the Flood Storage District and located at 3365 Union Street will be heard by the Wheat Ridge Board of Adjustment in the Council Chambers of the Municipal Complex at 7500 West 29th Avenue. The meeting will be held on January 27, 2000, at 7:30 p.m. All owners and/or their legal representative of the parcel under consideration must be present at this hearing. As an area resident or interested party, you have the right to attend this Public Hearing and/or submit written comments. It shall be the applicant's responsibility to notify any other person whose presence is desired at this hearing. If you have any questions or desire to review any plans, please contact the Planning Division at 235-2846. Thank you. Planning Division. CiBarbam\BOA\PUBHRGS\wt9901.wpd a d_I c w W v ~ d d •E ~ e c ~ 'u m y ~ a y c Q " d U ° E a E c ~ z i NI o d 1' C a u a K I v > ~ `o o N ~ N N II E ~ 4 L 6 L o ~ o a c 0 ~ m a m °rn °m rn °rn °m °rn °m x c m v u O W d M M o 3 N M ~ ° y y M ° M ° ° > o o?° ' ° ' O c m N o ` m o O~ c p` eo o ~ c d m v o m` m o a w o cy o w m y.a ° c a m 060 Loo Ev0 000 m~O E 0 Uaw d N E c Q C O O y v` Y > rn Y m Q c rn m~ m rn rn o U U m a Q . m~ o .o~v !~7a ❑~g M32iv c~a EO ca 41 N C V K C K L 1A K `N N d' L K t(l K N N ~ n LMd 9Nd UMN ZMy ~Ny HMd C_ (0 ~ ~ ~ a N L > ~ L L L N F L L N Y Z 2 W 2i o C" N w o N Q i i 0 Cl w c a NNO d m ~U U~2LU E ❑ ❑ ❑ ® ❑ ❑ m Z d U w a a M °v v r a ~ r v N v \I 0 N W ~f CO 0 ~ aD m W 0 ~ W of W 00 0 ^ n m n ° O w E n m n m m rn m m r rn ' z a a w Z w ~ 0 N 0 Q Z a }ow z V n a ~I NOTICE OF PUBLIC HEARING Notice is hereby given that a Public Hearing is to be held before the City of Wheat Ridge BOARD OF ADJUSTMENT on January 27, 2000, at 7:30 p.m. at 7500 West 29th Avenue, Wheat Ridge, Colorado. All interested citizens are invited to speak at the Public Hearing or submit written comments. The following petitions shall be heard: Case No. WF-99-01: An application by Wendy Ammon for a Class II flood plain exception to construct a single-family residence on piers within the Flood Storage District and located at 3365 Union Street. 2. Case No. WA-99-28: An application by Jeff Nielsen for approval of a 10' side yard setback variance from the 15' side yard setback requirement in an R-1 zone district for the purpose of constructing a 24'x 24' garage on property located at 3281 Routt Street. 3. Case No. WA-00-01: An application by Jayne Armstrong for approval of a 360 sq. ft. variance from the maximum building coverage of 600 sq.'ft. for a detached garage for the purpose of constructing a 960 sq. ft. detached garage on vacant property zoned R-3 and located south of 7650 West 47d Ave. azbara Delgadillo, Recording Secretarf ATTEST: Wanda Sang,. City Clerk To be Published: Wheat Ridge Transcript Date: January 7, 2000 AA000127.wpd d MEMORANDUM DHPARThMW OF PUBUC WORKS TO: Board of Adjustment FROM: Bob Goebel, Public Works Director~~g DATE: February 23,.2000 SUBJECT: Case No. WF-qq-01 3365 Union Street Claoa II Flood Plain Exception As directed by the Board in their requirements of approval of the referenced Claoo II Flood Plain Exception, I have reviewed the concerns which Mr. Polivka had in his letter to the Board. I spoke with Mr. Folivka and he wrote a followup letter to which I have responded. To the best of my knowledge, the concerns have been or will be addressed. This review has not changed my recommendation for approval. c: Alan White, Director of Planning and Development Mary Austin, Planner The City of 7500 WEST 29TH AVENUE WHEAT RIDGE, COLORADO 80215 Wheat GRidge February 16, 2000 William G. Polivka, P.G. 12001 W. 32nd Drive Wheat Ridge, Colorado 80033 Re: Case No. WF4W-01 3365 Union Street Class II Flood Plain Exception Lena Gulch Drainage Dear Mr. Polivka: Thank you for the video tape. I remember the day very well. It came after we had 17 straight days of rain in Wheat Ridge. The Consolidated Mutual Water Company's Fabri-Dam at Maple Grove Reservoir buckled under the pressure from the water behind it. The overflow pipe from the dam was not working properly and was being repaired at the time of the incident. Because of the repair, the level of the water in the reservoir could not be lowered in advance of the unanticipated 17 days of rain. The changeover from air to water in the Fabri-Dam (a normal operation between winter and summer months in both the Spring and Fall) had not yet occurred. We will keep the copy of the tape for our records. I spoke with Dave Lloyd of the Urban Drainage and Flood Control District (UDFCD) regarding his assessment of the changes to the flood plain which may have occurred when we completed the channel bank stabilization project in 1994. He feels strongly that the changes were not significant enough to warrant a FEMA map revision. But he and I both feel that the stabilization project did help the banks from severe erosion and allows for freer flows in events similar to the one in the 1995 video. The volume for the storm in the video was estimated to be on the magnitude of a 40 year event. Keep in mind that there is a threshold of capacity at the 32nd avenue crossing. When the capacity is reached, the flows overtop the structure and split to the street level and work their way to both 32nd Drive and also to Vivian Drive. This split in flow allows the excess flows to bypass the channel and uses the extra carrying capacity of the streets to carry the additional flows over and above an event less than a 100 year storm in the channel. In other words, during a 100 year event, Lena Gulch does not carry the entire 100 year flows within the channel through this area. Therefore, a 50 or 60 year event may appear to be at the same level within the channel as a 100 year event. I spoke with the Parks and Recreation Director about the possibility of eliminating the curves in the stream at the west end of the park. He stated that the public which (303) 234-5900 • ADMINISTRATION FAX: 234-5924 POLICE DEPARTMENT FAX: 235.2949 Case No. WF-00-01 Mr. Polivka Page 2 attended the master planning meetings for the park was emphatically against disturbance of any kind to the natural meander of the stream and cited concerns for disturbance of wildlife in the area. Therefore, in order to provide the flood flows through the park in a more efficient manner, it would require the construction of the high flow bypass channel very similar to the project completed downstream near Quail Street. This project is presently not on the 5-year Capital Projects Plan for the City of Wheat Ridge, nor on the 5-Year Capital Projects Plan for the UDFCD. Normally, we plan these projects jointly with UDFCD in order to receive the 50-50 matching funds which UDFCD provides for these projects. This project would have to have the support of the neighborhood and be brought to the attention of your City Council Representatives so that they and I can present the support for the project to the other six City Council representatives for their consideration and funding. I will bring this to their attention by copy of this letter as well as informing them in person at our regular Staff-Council District meeting on March 8`h. Generally, drainage projects are constructed from downstream in an upstream direction. There is a significant distance of the channel which has not been improved downstream of this location. We must investigate to determine the effects of these upstream improvements on downstream flows and properties if they are considered for construction. If I can be of further assistance, please do not hesitate to call me at 303-235-2860. Very truly yours, 4~b~ Robert Goebel, P.E. Director of Public Works Flood Plain Administrator c: Valerie Adams, City Manager Janelle Shaver, Council Representative, District III Odarka Figluss, Council Representative, District III William G. Polivka, P.G. 12001 W. 32nd Drive Wheat Ridge, CO 80033 303/205-0367 February 10, 2000 Mr. Bob Goebel, P.E. Director of Public Works City of Wheat Ridge 7500 W. 29d' Avenue Wheat Ridge, Colorado 80215-6713 RE: Case No. WF-*Ol 3365 Union Street Class II Flood Plain Exception Lena Gulch Drainage Dear Mr. Goebel: Included for your assessment is a VCR tape of the May 1995 small scale flooding event. I have reviewed the draft minutes to the January 27, 2000 meeting of the Board of Adjustment regarding the referenced case number. I find positive points within the minutes which may benefit all citizens residing along the Lena Gulch drainage: 1) It was recognized that the improvements to the floodway has likely altered the old 100- flood zone and a new survey assessment may be required to redefine the 100-year flood plain; 2) Discussions in the meeting highlighted that previous plans were made to improve the Lena Gulch channel throuuh the Lewis Meadows Open Space. The open space was left in a natural state. It now appears as if the City may reconsider extending the channel improvements. As a Wheat Ridge citizen, I applaud the past City of Wheat Ridge efforts to improve the Lena Gulch floodway, thus increasing the flow characteristics through the 100-year floodplain. I trust in your professional assessment of the concerns expressed in the January 27°i meeting and I pledge my cooperation in any assessment and improvement of the existing and future floodplain. Some of the neighbors have expressed that maybe widening and straightening the stream channel through the Lewis Meadows Open Space would be to the benefit of all the surrounding neighbors. We will look to the Wheat Ridge Public Works Department to provide guidance on how to proceed with this proposal. Sincerely, William G. Polivka, P.G. WGP/bp Enclosure: VCR Tape William G. Polivka, P.G. 12001 W. 32nd Drive Wheat Ridge, Colorado 80003 3031205-0367 January 26, 2000 Board of Adjustment The City of Wheat Ridge 7500 West 29`' Avenue Wheat Ridge, Colorado 80215 RE: Proposed Class II Special Exception 100-Year Flood Plain Lena Gulch Flood Storage District Dear Sirs/Madams: I want to thank the City of Wheat Ridge for the opportunity to review the structural design, site plan map, and hydrologic information prepared forthe proposed structure referenced in the documentation as 3365 Union Street, or the Lee Storrer Property (referred in this letter as 'the subject parcel'). The purpose of this letter is to respectfully petition the Board of Adjustment to deny a Class II Special Exception to construct a residence within the Lena Gulch 100-year flood plain. The petition is supported by the following: Background statement; Review of hydrologic information; Philosophical and precedence concerns. Background Statement I am employed as a professional geologist with an engineering/environmental consulting firm and I have a 22 year career in this discipline. My experience addresses geologic and hydrologic concerns associated with environmental impact statements for proposed land use changes. The larger projects have been prepared for the Army Corps of Engineers, the Department of Energy, the Bureau of Land Management, and the Department of the Interior. If this letter is presented to the Board in my absence it is because I am currently performing a stream gauge survey of the Eagle River for an EPA CERCLA mine site near Gilman, Colorado. CAMyFi les\flood-lettermpd Board of Adjustment Page 2. My interest in the subject parcel arises from my professional interests and the location of my residence, 12001 W. 32ntl Drive, Wheat Ridge - a parcel located on the right bank of Lena Gulch - and south of the subject parcel. Review of H *olo is Information The report, Lena Gulch Floodwav Delineation Study in Vicinity of Mr. Lee Storrer's Property, dated November 19,1999 and prepared by Flow Technologies of Lakewood, Colorado was reviewed forthis letter. The report is qualified by statements provided within the report as follows: (Top of page 2.) "Ideally, a "duplicate effective" model of the 100-yr WSEL (water surface elevation) should be constructed based upon the hydraulic data used in the Lena Gulch Master Drainage Plan the hydraulic data could not be located". (Page 2., Paragraph 3.) "The 100-yr discharge used in performing the original (Lena Gulch Master Drainage Plan) study was not known as explained (in the) above (paragraphs). However, 1, 100 cfs (cubic feet per second) is likely very nearthe 100-yr discharge for the study reach per the Master Plan, and results in reasonably duplicating the Master Plan 100-yr WSEL". This suggests no one knows what flow volume would actually be in a 100-year storm event. Inspection of the cross sectional data used for the computer flow calculations indicate possible irregularities in the field data collection methodology. • Cross section plots for River Stations (RS) 9600, 9578 represent the right bank endpoints as topographically high features. I own the right bank property and there is no physical evidence (a survey stake) or factual evidence (permission granted to the field crew) that the RS 9600 and RS 9578 right bank endpoints were ever surveyed. Additionally, the endpoint elevations do not appear to accurately reflect the low grade immediately outside my basement walk-out door, as presented in Figure 3 of the report. • Cross section RS 9556 - The right bank topography is represented by a single point on high ground approximately 65 feet away from the Lena Gulch Channel. The straight line representation does not accurately reflect the actual land surface. Personal lawn mowing experience indicates the south bank grading is relatively steep nearest toward the creek and then it slowly gains elevation toward the area of the surveyed endpoint. C:\MyFiles\flood-letter.wpd Board of Adjustments Page 3. • Cross section RS 9556 - should have been a straight line perpendicular to the direction of stream flow. However, inspection of the line of sight between the right bank endpoint and the east side of the proposed residence creates an oblique cross section. This maximizes the distance across the left overbank profile (north side), affecting the final flow/velocity calculation. Summarily, the information provided for the subject parcel study appears to be inaccurate and does not represent the stream cross section. Philosophical and Precedence Concerns Philosophy is not one of my stronger points. However consider these questions: • If humans gain knowledge and experience from those who go before them, tell me, why did the lesser-educated developers set back the homes away from the creek channel? • What is the philosophical and physical reasoning behind why fences, sheds, and other non- human occupied structures are prohibited within the flood plain? • If non-human occupied structures are prohibited, does that mean that only human occupied structures should be allowed on the flood plain? Only kidding. Which brings me to the topic of precedence concerns. It is my understanding that Lewis Meadows open space park was formerly zoned for residential development. On the basis of its existence within the flood plain, the land was ultimately rezoned, and the citizenry applauded the decision. Lewis Meadows and the original setback developments on either side of Lena Gulch create precedent land use reasoning against the construction of the subject parcel. With this perspective, and lacking accurate hydrological data to support the subject parcel development, I respectfully petition the Board of Exceptions to deny the proposed Class II Special Exception to the Lena Gulch Flood Storage District. Sincerely, William G. Polivka c~av~rvwv~ ~ a ~ ~ r~ S bL, loo W5c~L Pao FLO% ell 17, a o Zbabn . 1~\ay5 Board of Directors S Executive Committee: o Cathy Reynolds o Chairman City of Denver o Margaret Carpenter Chairman Pro-Tem City of Thornton z Debra Vickrey ° Treasurer Arapahoe County Paul Danish w E Secretary Boulder County a, Gretchen Cerveny mD Member w City of Wheat Ridge a Members: ~ 3 Pat Cronenberger ° City of Littleton B. H. Hoffmaster ' Engineer o Kathleen MacKenzie ° City of Denver ° Carolyn McIntosh ° City of Lafayette Fidel Montoya City of Denver Linda Morton d C ity of Lakewoo Deborah Ortega City of Denver n John Paroske m x City of Aurora LL Art Patton Engineer Richard Sheehan 19 Jefferson County Y James Sullivan m Douglas County z Elaine Valente o Adams County Debra Vickrey w7 Arapahoe County L. Scott Tucker, Executive Director - January 12, 2000 Mary Austin Department of Planning and Development City of Wheat Ridge Public Works 7500 West 29th Avenue Wheat Ridge, CO 80215-6713 Dear Ms. Austin: This letter is in response to your request for our comments concerning Case No. WF-99-01, 3365 Union Street. We appreciate the opportunity to review this proposal. The format of your referral notice, specifically the questions asked, does not fit with our area of responsibility as far as providing the kinds of services which are the subjects of the questions. Our interest is in the appropriateness of development within the 100-year floodplain. From that standpoint, the only question we have is whether the proposed first floor, including any basement or crawl space, of the proposed residential unit is at or above the elevation specified in the Wheat Ridge Fooodplain Regulation. That information did not appear to be contained within the information provided within your referral package. The applicant should be required to indicate what the regulation requires and how those requirements have been met. If they can do that, we would have no objection to the location of this structure within the flood storage area. If you have any questions concerning these comments, please contact me. Sincerely Bill DeGroot P.E~ Chief, Floodplain Management Program WGD/gb 7500 West 29th Avenue The City of Wheat Ridge Colorado 80033 Wheat Telephone 303/ 235-2846 Ridge December 27, 1999 The Wheat Ridge Department of Community Development has received a request for Class II Flood Plain Exception at the property described below. Your response to the following questions and any comments on this proposal would be appreciated by January 14, 2000. No response from you by this date will constitute no objections or concerns regarding this proposal. CASE NO: WF-99-01 LOCATION: 3365 Union Street REQUESTED ACTION: Class H Flood Plain Exception PURPOSE: To construct a single-family dwelling unit in the Flood Storage District. 1. Are public facilities or services provided by your agency adequate to serve this development? 2. Are service lines available to the development? 3. Do you have adequate capacities to service the development? 4. Can and will your agency service this proposed development subject to your rules and regulations? 5. Are specific easements needed on this or any other document? 6. Are there any comments your agency has identified which would or should affect approval of this request? Please reply to: Marv Austin Department of Planning & Development Fax: 303/235-2857 Water District O Sanitation District O Fire District O Adjacent City O Public Service Co. US West Communications State Land Use Commission State Geological Survey Colorado Dept. Of Transportation Colorado Div. Of Wildlife Colorado Dept. of Natural Resources Denver Regional Council of Governments Scientific and Cultural Facilities Dist. Metro Wastewater Reclamation Dist. Jefferson County Planning Dept. Completed by: (Name, Agency/Department, Date) Jeffco Health Department Jeffco Schools Jeffco Commissioners TCI of Colorado WHEAT RIDGE Post Office WHEAT RIDGE Police Department X WHEAT RIDGE Public Works Dept. WHEAT RIDGE Park & Rec Commission WHEAT RIDGE Forestry Division WHEAT RIDGE Building Division WHEAT RIDGE Economic Development Fairmont Homeowners Association Prospect Recreation District X Urban Drainage and Flood Control Dist. Regional Transportation Dist. Denver Metro Major League Baseball Dist. "The Carnation City" CABubaraAGENREnwf9901.wpd v~ E.22, 50Q < ~n ~ r , . ~ x t; f. ,q:' Ll i l ~ . i i . ~ J.y Y ~ . ~ V ~:m U^ ~ SS fi P ,~~j x ;y x, R ~ Nuv, . 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I 8.7 7 5 6 99.83 Q N a ~~ti .A 9 85 ~ O, ro u~, a Wy p0 co tv 00 00 _ D _ CT A CD co Ut W ° 125.91 OO P N w l0 O Q 91 -D. N a 151.62' 3 4 160.52' 116.01 99.6 2, 0 10 s• a 106.55 85 85 N a O O O O N 0 N o 0) -4 co O O p a N = ~ co O p 0 Q1 iv a N O' W O W a N N w cn O, N W N - O OD I 85 • SF 99.31 25 25120 171.85 0- VRIOR N o, - St. N ACATIO931OT255 100 100 6 52.42' u is • 9 F W p " Q7 p- N v zl 4 9s-4 D 44 T 51 i 5 2 53 54 ~ n r ' Lf jr 6 0' Z, aF w egT9 LAND USE CASE PROCESSING APPLICATION of WHC4 o Planning and Development Department o 7500 West 29th Avenue, Wheat Ridge, CO 80033 c~L ORP~~ Phone(303)235-2846 QO OOR Pao (Please print or type all information) Applicant L-eE, F o r~EAddres 33'gS Ut-1voc-t ~k. Phone X38 3 amci We c ~c~~l S A C~~Cr' Cit t~F61P a { ~~c~c3~ Y Owner Sam,!-* Address 33-~ ~5 rni n r1 S~Phone C) a C) 3 City lr-4I -n C~` c Location of request (address) 3 3 C-P e5 ~t CD rn 1'-J 1-1ezt ~c1 e_~ Type of action requested (check one or more of the actions listed below which pertain to your request.) ❑ Change of zone or zone conditions ❑ Variance / Waiver ❑ Site development plan approval ❑ Nonconforming use change ❑ Special Use Permit ® Flood plain special exception ❑ Conditional Use Permit ❑ Interpretation of Code ❑ Temporary Use, Buildings, Signs ❑ Lot line Adjustment ❑ Minor Subdivision (5 lots or less) ❑ Planned Building Group ❑ Subdivision (More than 5 lots) ❑ Street Vacation ❑ Preliminary ❑ Final ll ❑gOther: Detailed description of the request: N l/ a0 Fill out the following information to the best of your knowledge. Current Zoning: Size of Lot (acres or square footage): Current use: V N _ Proposed use: 1 t~ G Assessors Parcel Number: I certify that the information and exhibits herewith submitted are true and correct to the best of my knowledge and that in filing this application, I am acting with the knowledge and consent of those persons listed above, without whose consent the requested action cannot lawfully be accomplished. Applicants other than owners must submit power-of-attorne from the owner w Approved of this action on his behalf. Signature of Applican - `m; LO day of) e • ° , 19 Subscribe/dnd sworn to /m~e this d~tGA a't-64 Nci ry Public My commission expires Date received Receipt No. Case No. Related Case No. Zoning Quarter Section Map 12/21/1999 06:43 Bob BammeNin County Treasurer too Jefferacn County Pkwy. Gowan, CO 80419-2520 (303) 271-8330 - Office (303) 271.8322 - Automated TAX DIST. DOING 0U1 3P323d3986 AMMON, WENDY J. Jtl-t-trsw)~ ~..vvly I . V~./VVr SCHEDULE NO. PROPERTY TAX STATEMENT SECOND HALF TAX NOTICE LOCATION NION ST TAXES SEC.TY^LRNG.QTR." SQ.FT. LAND BLK LOT KEY BOOR YAG! APPLEWOOD VILLAGE 2ND FLG 29 03 69 NE 850 DEC 93107256 28 03 68 1065 050 63107255 28 03 69 6380 0053 2067280 28 03 69 11720 62067280 AqM CaO I A0 To ?!9R APR 0 QE~sNllo of ~o7"v~7 Vo- LJEAID ~ /4aP E£ ~Toe&4?. le- vl~ TAX AUTHORITY SCHOOL SCHOOL GEN SCHOOL BND COUNTY CNTY GEN'L DEV DISASL R&B SRVCS SOC SRVCS CAP'TL EXP LIBRARY CNTY OTHER WHR NWLSD UDFCD WFD 39.4080 11.3000 13.7060 .5000 3.4130 2.1160 2.7200 3.1060 .0230 2,7140 7.7270 ,7800 4.8200 AMOUNT PAID : BALANCE DUE ACTUAL LAND AND BUILDING 150.000 ASSESSED LAND AND BUILDING 15,540 ASSESSMENT PERCENTAGE RESIDENTIAL PROPERTY 10.34% ALL OTHER PROPERTY 29.00% BALANCE GOOD THRU 6-15-96 AMMON TERRANCE J 3375 UNION ST WHEAT RIDGE, CO 80033 RECEIPT - 030796080013 612.40 175.60 212.97 7.77 53.04 32.88 42.27 48.27 .36 42.18 120.06 12.12 74.90 434.84 717.42 717.42 IF PAYING IN PERSON BRING ENTIRE TAX NOTICE QrTAIN Ts4m PORTION FOR YOUR RECORDS. FIN. INST. Hydraulics Hydrology Water Resources Mr. Robert Goebel, P.E. Director of Public Works 7500 W. 29's Avenue Wheat Ridge, CO 80215-6713 November 18, 1999 Re: Lena Gulch Floodway Delineation Study in Vicinity of Mr. Lee Storrer's Property Dear Mr. Goebel: Per our meeting on October 15, 1999, a floodplain/floodway study was performed for the referenced site. Such a study was necessary because a section of Mr. Storrer's planned residence, to be constructed above piers, is located in the 100-yr floodplain as indicated on Figure 2 (Attachments) which was copied from the site plan. The proximity of the planned residence to the 100-yr floodplain and floodway is illustrated on Figure 3 (Attachments). Per Figure 3, most of the planned residential structure to be constructed above piers is located in the 100-yr floodplain, but no part of that structure is located in the floodway. Note that Figure 3 illustrates only that section of the complete residence located on piers. The following summarizes our study results and methodology. Study Methodology Floodway delineation was performed by first duplicating the 100-yr water surface elevation (WSEL) indicated on the Lena Gulch Master Plan,' and then determining the floodway within the 100-yr floodplain. The floodway is defined per Wheat Ridge City Code, Article 11, Section. 26-202 as: "The portion of the flood Regulatory District required for the reasonable passage or conveyance of the 100-yr flood which is characterized by hazardous and significant depths and velocities." P.O. Box 260595 Lakewood, CO 80226 ' Lena Gulch Master Drainage Plan, Urban Drainage and Flood Control District, Cities of Golden, Voice: Lakewood, & Wbeat Ridge, Jefferson County, Wright - McLaughlin Engineers, Denver, County, 303-989-1427 June 1975. Fax: 303-988-9609 Email: DTrieste@msn.com Ideally, a "duplicate effective" model of the 100-yr WSEL should be constructed based on the hydraulic data used in the Lena Gulch Master Drainage Plan. That data was searched at Urban Drainage and Flood Control District (UDFCD) library, and also at McLaughlin Water Engineers (previously, Wright-McLaughlin Engineers)who performed the study; however, the hydraulic data could not be located. Because of that, the 100-yr WSEL had to be constructed based on best available data. Such data includes City of Wheat Ridge Aria] Photo with 2-foot contour intervals z, Lena Gulch Mater Drainage Plan, and a site visit. It is important to note that because the original study was performed over 25 years ago but the 100-yr WSEL was modeled based on recent topography, it is difficult (if not impossible) to match the original study water surface profile exactly. However, the duplicate effective WSEL matches that of the original study (Figure 1 & Profile Output Table, Attachments) within a few tenths of a foot which is very reasonable for the purpose of this study. The study was performed by applying the state-of-the-art computer model, HEC-RAS 3, which is the "next gen" HEC-2 model. A known downstream WSEL was input based on the original study so that the effects of the downstream control (drop structure) located in the channel at the time of the original study would not have to be modeled - the details of that structure are not known and likely different of the existing structure. Model generated printout of all input data is included with the Attachments. A 100-yr discharge of 1,100 cfs was selected based on information from the Lena Gulch Master Drainage Plan (Figure 4, Attachments). The 100-yr discharge used in performing the original study was not know as explained above. However, 1,100 cfs is likely very near the 100-yr discharge for the study reach per the Master Plan, and results in reasonably duplicating the Master Plan 100-yr WSEL. Floodway delineation was determined by separating channel flow from overbank flow based on topography, and comparing discharge and velocity between overbank and channel flow. The floodway is that section of the total cross-section carrying the majority of flow and highest velocity. Or per Wheat Ridge City Code as stated above. Study Results Figure 3 indicates the approximate extent and location of that section of the planned residence to be constructed on piers. The majority of that section is located within the 100-yr floodplain. However, the floodway is about 35 ft from the outermost piers. To illustrate the relation of the floodplain and floodway in more detail, please refer to the attached cross-section plots for River Stations (RS) 9600, 9578, and 9556. Those correspond to RS 96+00, 95+75, and 95+50, respectively from Figure 2. Each cross- section plot indicates the location of the pier closest to the channel (note points A, B, & C), and depth of flooding. In addition, the discharge and velocity are presented for the main channel and overbank sections. For each cross-section plot, the main channel z City of Wheat Ridge 1996 Aerial Mapping Project, Sheet M16. 3 US Army Corps of Engineers, Hydrologic Engineering Center, River Analysis System„ 1998. (floodway) carries the "reasonable passage" of the 100-yr flood, and has "significant depths and velocities." The overbank areas do not have significant depths and velocities, and carry a minor portion of the 100-yr flood. The latter area is the floodway fringe and it is within that area that Mr. Storrer's planned residence is to be located. In addition, to further demonstrate that the planned residence will not be. subject to dangerous floodflows (based on the 100-yr discharge), depths and velocities of that portion of the residence within the 100-yr floodplain were compared to "Depth-Velocity- Danger-Level criteria" per Bureau of Reclamation's Downstream Hazard Classification Guidelines.4 Highest depth and velocity at the planned residence is 1.1 ft and 2.0 ft/s, respectively at Station 96+00. Per Figure 2 of the Guidelines (attached), such a combination of depth and velocity is clearly in the low-danger zone. Figure 2 of the Guidelines pertains to houses on foundations, while the section of Mr. Storrer's house under scrutiny will be built on piers. Although Figure 2 of the Guidelines does not directly apply to a structure on piers, its application results in a degree of conservatism. That is because a house built on a foundation is also subject to buoyant forces in addition to greater hydrodynamic forces. Thank you for your attention to this matter and review of this study. Please contact me if you have any questions, or would like to meet to discuss this study in detail. Respectfully submitted, f6 - _011 A Douglas I Trieste, P.H. Owner Attachments Cc: Mr. Lee Storrer Mr. C~ralg Houdeshell, P.E. ;"&t ~ //-79-91 a Downstream Hazard Classification Guidelines, ACER TM-11, Bureau of Reclamation, Denver, Colorado, 1988. Attachments Figures Grass Line ROW width ~ b pr iL" r:A r , . 7 t i Wries iom ^C' to IIO - 100 Year Flood Plain Urnit r' Co" . water cvrface r hnproued Ctxuriel CaMifpra 7 .e: ~ ? .TS Typical Exisnly C:onre Cross Section " ' Sta. 95•CC •o IZZ-00 Scale 1 =20 Gross Lined Charnel ROW width 100' -Y 5480 f I '5470 - c I I 5460 I Exi} tin9 d uidT ~ I I 5450 _ - - ! I' , i I I ( ' I 5440 _ i_i - Existi Gr nd t 5430 - - i i i i 0 0 o. 4Ogyr. Water Sarface Typical Improved Channel Cross Section _ Sta.10.00 to 49.00 58.00 to 95.00 Scalel•=10' 4.4' 100 c water Surface L- r 4(IyP.) 4 40' vFlo .T Od Plain Zone e ~.w w/Minter rErosion G U use NOTE~ This drawing N o mpate. plann'w• , rY and [onaptu. p eheel repraaeni Hp lI rot nol fa enplneerin0. 11 Ce aaed br mnahuclbn Wrpaan. ' NOTE: Fu Existing 100 Year Dischage . _ ma ether flows. see Mosier Plan Report. Pond Line 50 I , e IOd Year Surfu eP ik_ water +~ff s-CC 95.00 I 100.00 4 + a_-ws emuL AnwErs ra:•' cESVUEO.y miE- ✓a/9s ENGINEER, A RAL R<L,y 11C a1t:. dF DATE' 5 ~ ~5 t~oPacnAwc .,~„F inns A asntt5 WRIGHT-MCLAUGHLIN ENGINEERS CHECKED, y/LJ •?a. - e-r n.wq-t9- GATE- 59 y„a 1II-1-_1-I--IIII i 11 105.00 110.00 URBAN DRAINAGE AND FLOOD CONTROL DISTRICT Sto. 92•00 to Sta. 95.00 Sta. 95.00 b Sta. 107.00 Sta. 107°00 to Sta. 122.00 Design CLSCimge =2450 cfs Design DisUargs = 2000 ifs Design Discharge =1500 Cfs man Chanel Mm Chat Main Chamel Average kbCdY =7.6 fps Average Veb-ary =7.5 fps Average telocay =8.0 fps z - - 1 5480 j I 5470 - - - 5460 n e h er a- - 5450 f b _ 5440 - - - - 5430 115.00 . 120.00 _ 122.00 MASTER PLANNING SHEET NO. 1 171,11% rt 11 f`I.1 STA. _92±00_ to STA .122.00 ~y~ •r. Ck~r. 71 WrAW :4f / F Y t _ c Awl rx. C . 0 . Q 1r ` ' t tom`` ~ E - aa-~g ~ ~ ' { .Y ~ tom~~~•~~~~, '+W^ l J y N -4t ~ u A~ ~ F1 (//e 14 100 Yes LAW Chanel -Ndwol Slope n=.02 100 Year Greer Lind CMwanl-Flat Slope n=.03 100 Year Existing Cle 25 rier Grass Lind Chernm-Fbt Slope n=.03 _ 100 Yes Existing Development and Cho" NOTE: All flows bosed on aseunwd future denelopvant except where noted. 10 Year Gross Lined Cbasbal-Flat Slope n=.03 25 Year Existing Chernel 10 Yes Existing Channel k 100 Yew wft DelerGin Naaarran and naened Meals Gran PA"rvoW Stun" 105 100 Yes Moslar Plan Chom al k z is s IkS tia W > 5000 to y i 4500 a wnmmmX eAFLE G1 ME MM PIZ t ~ Mc WA - - e c - ( 11000 W C If O _ 3500 ~TE~ daolron Gbddb s > y y Ow amber" IMF opped to Apex Gold. ` r m W N t tm M _ ~ 4 4 M O 3000 F. . / 01 f{ 1 _ 2500 2500 0, 1 10 2000 2000 1 i 1500 1500 1000 1000 { 500 500 15 000 120 00 90 00 60 00 30 00 0 - 24000 21000 16000 I 1 1 1 LENA GULCH -PEAK DISCHARGE PROFILE - - l p WF11014T - (AIICLAUOMLIN ■PA 10 45000 42000 48000 i 1"CK" GULCH) 45000 - 42000 39000 ZOLWJ/ 33LRA7 4w cru .I (APEX GULCH) Olstarloe in Feet from confkhence wf Clear Creek 124Q0 AL[:oTT 151. C)ENVER, COL.OF L) U C P s t a O Output Tables V r.. V J i Z U O O OII O di O' OI OII O O a O LL I L ((pp M op 1~ N . om - (O pp O N ~ i V 9 V W ~ ~ m m O N ~ N ( (pp 17 ~ o o N~ > 6 O F- Opp In p ~ fO ~ ~ 01~ ~ Q mm N N (V ~ lD~ a C Ol p N N 4 N s N 1~ N P N V N O ~ ~ LL N NN N 0 V I~ O o 8 p~ N Q Q fp OI 1~ N N N N IN 0 0 IA 0 ) O U a d N _ ~ p O O O O o o 0 o o c 111 LL! v U - 8 93, 93. lh N a m t 0 ~ci 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 d 0 ttpp j~p1 1~ ~~Q$ ;z ' x m e m m ° > t m ` 0 0 i a ~ ~ ° W 8 W ° N a ,N 0 N 0 W 4J. -o :N tq 0 . N 1 m m m ::m m O m 0 .m _m - J J J J J J J J J J d 0 N d d J N Q: U J W K W m U 0 N a rn U Plan: Duplicate Ef River: Lena Gulch Reach: Lee Stoner Riv Sta: 9600 Profile: PF 1 E.G. Elev (ft) 5446.731 Element Left OB Channel Ri ht OB Val Head (ft) 0.35; Wt. n-Val. 0.035'. 0.030 0 035 W.S. Elev (ft) 5446.38 Reach Len. ft) 22.00. 22,00: . 2200, iant W.S. (ft) Flow Area sq ft 70 501 189.95'. 0.461 E.G. Slope (ft/ft) 0.001741 Area (sq ft) 70.50 i 18995; 046 Q Total (cfs) 1100.001 Flow (cfs) 139.99 959.85 016 jTop Width (ft) 112.621 Top Width (ft) 59.37; 48.00. 524 Val Total (ft/s) 4.221 Avg. Val. (ft/ s) 1,99! 5.05'.. 0.35 I Max Chi Dpth (ft) 6.271 H dr. Depth (ft) 1.191 3.96; 009i Conv. Total (cfs) 26360.5. Conv. cfs) 3354.6 23002.0 3.81 Length Wtd. (ft) 22.00 Wetted Per. (ft) 59.42 49.69 i 5.25 Min Ch El (ft) 5440.101 Shear (Ib/s ft) 0.131 0.42 0.01 Alpha 1.261 Stream Power (lb/ft s) 0.26 2.10' 0.00 Frctn Loss (ft) - 0.04 Cum Volume (acre-ft) 0.16 0.411 0.021 C & E Loss (ft) 0.00 Cum SA (acres) 0.17 01101 0.041 Plan nunlirota Ff River I enn Gulrh Reach-l ee Stnrfer Riv Sta 9578 ` Profile' PF 1 E.G. Elev (ft) 5446.691 Element Left OB 1 Channel Ri ht OB Vei Head (ft) 0.39 Wt. n-Val. 0.035 0.030 0.035 W.S. Elev (ft) 5446.30 Reach Len. ft 22.00 22.001 22.001 Cnt W.S. (R) Flow Area (sq ft) 71.20 181.21 2.23 E.G. Slope (ft/ft) 0.001829 Area s ft 71.20 181.21 2.23 Q Total (oft) 1100.00 Flow cfs 138.98 959.69 1.34 Top Width (ft) 119.69 Top Width ft 63.82 44.00 11.78' Val Total (ft/s) 4.32 Avg. Val. ft/s) 1.95 5.30 0.60 Max Chi Opth (ft) 6.38 H dr. Depth ft 1.12 4.12 0.191 Conv. Total (cfs) 25723.1 Conv. (cfs 3249.9 22442.0 31.2 Length WWI. (ft) 22.00 Wetted Per. ft 63.86 45.83 11.79 Min Ch El (ft) - 5439.92 Shear Ib/sq ft) 0.13 0.45 0.02 Alpha 1.34 Stream Power (lb/ft s 025 2.39 001 Frch1 Loss (ft) 0.04 Cum Volume (acre-ft) 0.13 0.32 0.01 C& E Loss (ft) 0.00 Cum SA acres 0.14 0.07 0.04 Plan nunlirate Ff River I ena Gulch ReaclcLee Storrer Riv Sta: 9556.' Profile: PF 1 E.G.Elev (ft) - 5446.64 Element Left OB Channel Ri ht OB Val Head (ft) 0.43 Wt: n-Val. 0.035 0.030 0.035 W.S. Elev (It)':. 5446.21 Reach Len. (ft) 22.00 22.00 - 22.00 Clit W& (ft) Flow Area (sq ft 71.56 171.47 5.23 E.G. Slope (fbtlt) 0.001953 Area (sq ft 71.56 171.47 5,231 Q Total (cfs)-:' 1100.00 Flow cfs 137.65 958.11 1 4.25 Top Width (ft). 127.21 To Width (ft) 68.89 40.00 18.32 Val Total (ft(s) 4.43 Av Val, ft/s 1 92 5.59 0.81 Max Chi Dpth (ft) 6.47 H dr. Depth (ft) 1.04 4.29 0.29 Conv: Total(cfs) - 24891.7 Conv.. cfs 3114.8 21680.8 96.1 Length Wtd. (ft) 22.00 Wetted Per. (ft) - 68.92 42.04 18.33 Min Ch El (ft) 5439.74 Shear. Ib/ ft 0.13 0.50 0.03 Alpha 1.41 Stream Power (lb/ft 5 0.24 2.78 0.03 Fretrl Loss (ft) G 0.04 Om Volume (acre-ft 0.09 0.23 0.01 C & E Loss (ft)' 0.01 1 Cum SA (acres) - 0.10 0.05 0.03 Cross-section Plots ~I C IL LL ~I C fq ~a' d a~ o c N 0) U N u~ y t5 `h e U_ I n L- C W f0 CL m N s m 0 dq U o O i J LL N o-~ o N J ~ p ~ s L N _ U LL 3 e y I - ~ to (g) uogenao J w N L9 m _g N IT 0) I U N N tO U CL p I 0 C t0 CL m ~ m J 3 0 O IL 1 o ,n CD O F - LL h ti U J 11 U J W S CY ~ ~ it 11 / W n a S ~ K ~ 6 11 er ~ r a ti ~ v d h V (a) uonenal3 a _g _ IN -8 'O 9 a LL a a a ohm 01 N f I L co W If ca CL W o .n m 3 i i t o y L Ell .y o a N J I ~ ~s a - 8 a 4. l °O J LL ~ 9 L ` K 11 o J Is a) N O) O> F lL v ~ M i - O 1 O W UOIWAS13 HEC-RAS Computer Input/Output xx x X X x x x x x x x x x x x x N x X x x x x x N x x x 0 m w m m x x x x x H V o m v ❑ v a H I 0 ro N C U -H X > :j n r+ x x x o+a+~~ x xx m cc ono o x x m w . rn x x o, H,~ ~ x xxxxx x T W O U I ro O 0 0 -H . 0 3 H C H x -0 v f a x 0 " o 0 0 £ C U G ] Z1 --1 G+ x x m m W lv aUU x x N m H rnv x x H 4 0 N x x m m . -I xxxxx o ~ uo w > m v i I ro U > ] T q x x v rn w ~ x x v rn a x x x a- x x x a~ x xxxxx x M M ~ N N N x xxxxx x om x rn rn w x x X F x xxxxx x w 4 as ro 4 -l ❑ F E- U F w El U U U ro W U/ O/ q - -n 0 0 O C a H H ~ w a a a h w C 7 N >T C w c 1J U N O H a N N N a 3 O ri 3 O N N b U/ 4 ro x c ro~ A H I O £ > F 0 O ro > ro H C ro M E O % U O O o C ~ ro w Y H C T N I A o H o ~ O c H w ..,z W c v v O 3 c H 3 m v v m 0 O v o q U W O A U N > N C > O w 0 H v c 04 ❑ ro 4 E a q .7 a a m N rn m w H N H H O L v > v v ~ a U I U! N W N w rn w rn E v w 11 / ro ro U 1~ -rl ro rl q a~ 0 C I roU ~ w a x H N H w v N A ro N x U 7 4 cD El ro q O a v v .i v E I+ C C ro ro a w 0 N m L W H W 4 u O U) U1 a I N N m m E !v ro N ro o aa' vI O U .c w ax / ro N .i N H H N I/1 rnv 'I a Va ro q v / 3 U ri v y ~ , ~ T T u H 41 EE O O v v C7 f7 E ro U 4 L U G 3 O Q ti 0 w m N m IJ W 4 m 4 4 1J O m W m 4 W M J~ a/ N UI a rn a I rn o N w N W O / m 0 0 T 4 E rl U w C 4 0 / O 4 O ro O w ti N II II u1 w n+ ,-f ro U o] q N 7 O~ ri m U c c > 3 a c m o I U N C T .-i N U a 4 N T U w N W O -.1 ti O 4 C> rn x U o o in o' ro G . rn / U$ o ro O m E .i O O N 0 0 a) UI U U w is a m U .x H w w e u m U m w n n n u n v U cn -H .4 41 v w w .a rl c 4 ro 4 ro rl U m 7 C U U A 4 U O -.i ~ ~ O C C L> 7 VI O O fa M d) QQm a a 14 a' am Q U v 3 -E o 00 .i U Q 0 C r O O U 0 T O W o q 41 t~ O U .i A x O/ i C C 0 / ti• C C ro O N U 4 a c n n n o o 0 m 4 v •i 1~ N al m ro U U C O m w 4 C C m 0 0 4 a~ 0 'O m w al O C O O s r r 7 ~ .U O 7- O a U ro O -H -H 7 U-4 a~ A m .a 4J te a~ U .1 v U E m w 3 - o v ro a~ U ro row U m o w o o ) w ro ro rl U M OW E m m U o ❑ w U;3 7~ Q )Q) U w.~ E m "N 4 U U N U w Q as w a 4 U O A 4 4 U C A .-I U - E c E C', O N U w U ro y U O al m a Q O w ro> '0 O C 0 U a ,q W C m .i a U O ro o q .i 3 3 c o .-I .4 i-I ro ro E w m w ro ~I c o/ N 0 o H 4 7 w .o c 4 a v m m o rl • .0 Q UU m c V U o U ac w n w w T ro c C C U G C 4 c m m E E o c m m m0 m m - U o w 4..I H E ..I ..I Q .-I a) m o v v 4 3 m a, > > u U a E c~ T 7 a m -H x Y .,i O m .W G .I 0 Q H -H fa ro 4 4 4 m 4 aJ m ro m 4 m m ~ a.l 4 0 4 0 q E, F w q v m m v a) 7 3 U E w 7 U O w U - > C V > C pp a a 3 3 3 3 .H U C m E 0 E O 0 0 O a s s 7 a w ' a o 2 U U [ u w w W m m v m II 3 G 3 O G Y ti w a 4 v 4 4 O y v U a x U c7 m C U a m~ O M M l0 C O~ m N~ N~ O M O H H O~ m N N 0 0 0 0 O lp 1) N ti .-I H ~0 0 0 .-I N 0 0 0 0 F O N LP a H O O v' C N O m ~O ~ N~ r r~ N M O m m M O N l0 m c' r H Q E Q Q a F W O W C7 > N o F C O N N C C ram C • M o o m M r M v' v O ~ N C C a ro O N N N r m r M W Nan x H W V H O tP M N M N N w m H H W N O M M N O O M N v' M c N 0 ~ m H 1~ H O M O r r 10 r N N m M O M M Ol C O M 11 O 11 N m m Cn M M H M M O N O O W U W O N lD ~D .-1 ~ C N ~ a) N M H w a ~ > a c w H a) c• c a) H •-1 P C O W m O O W N ro O1 N W W a Nro W i0 ^ \ I I m ti .C N W ^ A a) N tP W U) 11 J~ W rl H a W W ro N W M m - w Ul W W Q• H - al W > N N W^ 1J ul a)\ 3 U U ra 4) c C M N M rl H C (o N ,F 04 w a) O ro ro Hcc >O alN ro N W b'w 4) wH a) U dH W 7`' W W ~O N - C H W> a H N U 10 N A v (a F F -H C I Q---.'I> 'O o Q A m a) C .F 3 Q) H ro> m 0 a) , c~ ro m v a i i o a0 w (a o a BE .F ro~-+r roN .i L Nrl HH O > >.O a)x w 7 7 09 U w M O) w H W ~n W 3 a W Q W H Q X U 3 m m U U 4J I rl N m M m e-I W N O U 7 a ti .C W 0 a LL X Cv O `-I N O ~O r H m O O M M M ro o a H c O M r lD O m M 0 0 - F o N a O ~n fa w ro 4 m r > m m H M ,F r 0 ~O c O N N N m 10 0 H O O -.i 4) a m a) v' ro 0 w W C sr O O Ol ~-1 N C H rJ II .--I r o c II > to ~ m a o ti r c v m E wcc~n E F -.t ~ ~ H ~O Q ro a m 7 C C 7 C 41 W O ~ E4 a F .n .n F a o m W b H 'O a roams.-~ ro m Q m y 1.) r H E ro m M H m 11 N L Q W H ro A b E H a) a w W ^ J~ U) 3 U a) C 4) F \ yww W H O> m m a H N - w U W^ W W • H O c - ro m O W W w W W W w W W O O w'-I V'Or of >o W Oi w w W ww- www,F W~ > r m vJ v vwvy .i OM cc C w O m m a) U V v •i -H H F 4) N N C a H > a" rl A W W H 41 N > E W E. 4) O rl E a) b a) M O 4J ro O 3 W O O U a) -H W M U fi M. • H rl 'O •-1 E a s W a W roo In m - N o ro W W W 3 m (a 04 .Cx H 4 m a C W m M M W W rn X 3 F U • U ro C W N w -H O to rl C m m W O > to a) 4) m X E H ..i -.i M w C7 H Vi'I U F a .-I X C C C a U E m U 5 U L C Y M m H O W (a O a) H N 0 0 0 O Q w v, ro F C O W> 3 U W a E>~-; U a E-Q w U Ix Z 4) ro z U U U a H O M C 1 U m N O N N m M P r Ol P M M N N O M O O O r O r r-1 0 0 0 0 0 o M Y N rl ti O~ O O H l0 O O O C ~ O N b+ a .-i O O N N P N N N N H r O\ r U/ M O N N m r N r M r l0 l0 H > P lO m C C O H NPmm roM C ~nmmrio ~oM~omornoo H P CL ro O N M M O M ti M P P W U ~ P P N N roNm~o Y N r 1.1 m N O m m m N N P 01 r P r m r m N Y .-I O M O P P M 01 r N O~ N lD N N P N N C O 10 m 0 N p Y N Ot O~ ti N N H O N 0 0 0 0 H U W O N 10 l0 01 N P N N .-I M w a > N N N H N W v T l0 O R M R rl > O O W N o ~0 U P P P C P P P N N N N Y Y R H N rl R N W W Y Ol r N Y N Y N \ I V] ri tl] .C N Y A N r M b+ M Y ~ W Y Y .i LI M O n N .-1 Y \ W W W~ U ~ a w m Y Y ro R v O~ S! 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N m rl G C O W> 3 U W a E. > X U a Q W U [ O ~ O+ ti N (U 4J m Ix W H Q m E [A U U fz H m 07 ul O 01 Ol N N l0 N O M N H N C O M O t0 ~D M Ol v r-I Ol O O O O y to O O O N O O N 0 0 0 0 A O N >T N a Hoou)rnM U] r--Im rnmrHN N M O H H M N C Ol m e lp t0 H > c m a G G o •.rn > m N C N m ro M G N M M ~O C rO M O~ N O N O O N v' H e a ro O N r r c v r c rl O c W N H r % L H H O1 O w C N c c W U N v c c rn ro~ C H b O N L r M m LI P] N O 01 Ol ~ N m 0 O~ O tt) <P O O y N 0 m yr+ OMOV'v'M O~ HN OHMNN mHN C' M H G O Ol Ol N m O y rP O O M m N r-1 l0 01 0 0 0 0 H H U W O N r r rn N M N U) N M w a > H r rn .-I rn w > N N Ul N .-1 ro M N U) c .-i t0 > O O H c l0 w c o io U W rn c v m c G c N v' v' UI N y L ro C rf1 O~ ro N W W - N m m L ~D N M yr- y rn \ I y ti~ m e-i m AN y .-,A N mHH N H l0 br W UI y y y .-V i1 .-1 H (X W U' y' y ro N v N~ W W b' S{ N . a N >N rr HN 0 W y N N\ 3 0 u U >CV' N M N N ro M H 5 N H G ro N X W W A O O) C c H O U) N : W y H 4) U/ U L4 y W .-1 ro U O .i C ~r w~DOC C y> a m U V Nq - H w Wrn rtl c c rn G G C I a avV > ccc ro v C~c n 3 W w m> r rn rn rn A E U 3 rt 3 it > y rd w U v M0 (D o ao+-d Gy 4) ~4EE (0 m ll7 ,-I N 01 H y N rl y .-1 O> >i O N C y 7 7 .C b O N yM yrn wSar=.awErlxU3v~m00 u yoc M ..N c m.-) W N H O m.-IH r ,--I M U) H 7 M H a a .-I fv M H m N O M O .-I O~ O r 0 r0 N a r c M r 0 N In 'i • O N MOO ro 0 >N m M .-IM ~ lOOlp NO01 v' lpr u-1 O HOO N l0 >NN O) m mM roO y W C C OOO HN v' a O~ O) v' ,-a II > b+ ri c a O ,-a a c II H tD a w r N M ~ G -fl N an N N X11 ~ W v' N cmc 7 G U1 w o FL m 7 a ccc C a O W a G rn rt1 N to N > CL H ro N M ro r0 - {1' - ~i In M - y rnM yr ycM ma• m ym ro m m V A M y O N O~ b+ H E rp ti ..I p y q N 0.' a W > m N m m H N y U W y y fJ O > m H 0v'NOV' .-I roM O y•-.y y W ~y y =may W W N -.i NC .-ac - a ro>o yin wyww--www,gv w o y HCo w N N u1 > W r Z W W - y H Z ro W u'1 C v m Cv' C a m H > > a_-.C H qy y.i w m H C :(v to rn In o~ E N 'U U) m O y ro O 3 w O O E U) O -i m U rl (U' y H E a s U U) -H W morn.-I rn roo m w w vw3m fu OX AL W a y rooo y r N r O+y y m x y$ E U y U ro r W m a z y m m C m m . 4J O > OI ry -.1 O m -i rna~O -.i m U' m-H 0 E Mr % C C C 04U w m x F *+-'I o N m C X m N - s) • O O) ro 0 0 -H rl 4 m u 5 U y O w>3 U w 0El >ZUa O~[ a P. 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O v N O N ~Q W U cL O a ro 0 W > 3 U W OIEl >X U.] X Q W U a G l z O ro a U a H 0 m W U N N N N N N N M M M M M M M 0 0 0 O O O O C M C N C N N N N N N N N N N M M M M M M M M M M M M M M M M M M M M N N N N N N N N N N M M M M M M M M M M ro m u 5 a 4 o(n o u>o wiocNo Q U O r N N O N M N 01 > > 10 1p lp ~D N N N N C .i Ol Ol Ol 01 01 01 01 01 01 Ol z a U 2 H .G z U 7 C7 4 4 4 4 4 4 4 N 4 4 .C U) U1 N U) O4 rT4 0 W N N Ul N co U 4 4 4 4 4 4 4 4 4 4 O C ro 4 4 4 4 4 4 4 4 4 N O 0 0 0 0 0 0 0 0 0 0 0 IX a a MMOMMMU)MMM mmm~nv~m~n~nm 4 v v v v v v v v v v v > v v v v v v v v v v N z aaaaaaaaaa l~ L a N N N N N N N N N N N N N N N N N N N N N N N N N N N -i N N N N N N N N N N C G ro F U J~ W O1 a N N N N N N N N N N N N N N N N N N m 4 O N O N O m t p v' N O N O h N N 0 N M .-I O~ !l) > ~D lp lp ~O N N N N c x rnrnrnrnmrnmrnmrn H a c~ 2 W a X x U U .i rL 7 Gal O 4 4 4 4 0 4 4 4 4 4 fu C U 1U•+ 0P lU1 14 4 4 4 sU-i O U1 (0 4 4 N 4 N 4 4 4 4 4 a d) 0 0 0 0 0 0 0 0 0 0 N a V 4J P Y V V 41 1J -P MMMMMMMU)MM 4 v v v v v v v v v v v > v v v v v v v v v v 5 aaaaaaaaaa m a w F z W H U N W O U z O H N Q a x w zA a z O H F U U ri E. z 7 0 0 U W C O v a a ma C ro M M M M M M M M M . a x W SJ C O U ro LI O i[l O N O ro l0 C N O v O ~l1 N O ~ M N O~ -.i Ot Ol Ol Ol Ol Ol 01 01 Ot O~ a 14 N L4 14 L4. 4 N 1! N 4 t W W W N UI U) v W N Ul U N ll N N H 11 4 11 u ro u u 4 0 $4 4 v 0 0 0 0 0 0 0 0 0 0 0 0 0 0' L 11 J-~ A i~ 1~ 1~ 1~ Y J U m m m v: m m w m m m v v v v v v v v v v aaaaaaaaaa Depth-Velocity-Danger-Level Curves Y C Q~ C Y ~ N _O N Q N y la0 y ~ O A O ~ E m H E ~ 0.0 L E COOL U ~ U O O (0 " ~O•~ O a1 W 7 W W Z S O N N N a: W W O Z Q o W o 2 ~ O (w)tadeQ O 7! (u) 43deQ 25 N N O N r ~ !r W~ V O r in O c O C C co 2 'O O O C O I C Q O ~ w o a 1 w nj C O 7 ~ _m m x x a 0 wJ 4 P v a L s .L w N. ii U ti m z a O w O ~ O T FEDERAL EMERGENCY MANAGEMENT AGENCY O.M.B. No. 3067-0077 NATIONAL FLOOD INSURANCE PROGRAM Expires July 31, 2002 ELEVATION CERTIFICATE Important: Read the instructions on pa es 4 - 7. SECTION A - PROPERTY OWNER INFORMATION For Insurance Company Use: ILDING STREET ADDRESS (Including Apt, Unit, Suite, and/or Bldg. No.) OR P.O. ROUTE AND Wheat Ridqe CO 80033 Lot 43 Applewood Village 2nd Filing Jefferson County Colorado' BUILDING USE (e.g., Resldenhal, Non-reslden6al, Addltlon, Accessory, etc. Use a Comments area, If necessary.) (XJ NAD 1927 I_] NAD 1983 U USGS Quad Map IX I SECTION B - FLOOD INSURANCE RATE MAP (FIRM) INFORMATION B1. NFIP COMMUNITY NAME & COMMUNITY NUMBER B2. COUNTY NAME - B3. STATE Jefferscrt GD B4. MAP AND PANEL B5. SUFFIX B6. FIRM INDEX 67. FIRM PANEL 88. FLOOD 89. BASE FLOOD ELEVATION(S) NUMBER DATE EFFECTIVE/REVISED DATE ZONE(Sj (Zone AO, use depth of Flooding) rxtFrrm txn~ O M~r~, 1g72 F~h_ 4. 19FR A-1 5443.4 B10. Indicate the source of the Base Flood Elevation (BFE) data or base flood depth entered in B9. _J FIS Profile IX II, FIRM I-I Community Determined I I Other (Describe): J NGVD 1929 I_I NAVD 1988 I_I Other (Describe): _ 611 _ Indicate the elevation datum used for the BFE in B9: IX B12_ Is the building located in a Coastal Barrier Resources System (CBRS) area or Otherwise Protected Area (OPA)? Designation 1_1 Yes I_1 No SECTION C - BUILDING ELEVATION INFORMATION (SURVEY REQUIRED) C1. Building elevations are based on: I_fConstruction Drawings` I_IBuilding Under Construction' IX (Finished Construction 'A new Elevation Certificate will be required when construction of the building is complete. C2. Building Diagram Number _ (Select the building diagram most similar to the building for which this certificate is being completed - see pages 6 and T. If no diagram accurately represents the building, provide a sketch or photograph.) C3. Elevations - Zones Al-A30, AE, AH, A (with BFE), VE, V1-V30, V (with BFE), AR, AR/A, AR/AE, AR/A1-A30, AR/AH, AR/AO Complete Items C3.a-i below according to the building diagram specified in Item C2. State the datum used. If the datum is different from the datum used for the BFE in Section B, convert the datum to that used for the BFE. Show field measurements and datum conversion calculation. Use the space provided or the Comments area of Section D or Section G, as appropriate, to document the datum conversion. Datum _ Conversion/Comments Elevation reference mark used Does the elevation reference mark used appear on the FIRM? I_I Yes ~r I No Q a) Top of bottom floor (including basement or enclosure) 5446 .5 ft.(m) v O b) Top of next higher floor 5456 5 ft.(m) a ❑ c) Bottom of lowest horizontal structural member (V zones only) ft.(m) w R O d) Attached garage (top of slab) 5444 fL(m) ° a e - t1 e) Lowest elevation of machinery and/or equipment m servicing the building (Describe in a Comments area.) N''A _ ft.(m) E c p f) Lowest adjacent (finished) grade (LAG) 542 .5 _ ft-(m) z a ®B ~ • g) Highest adjacent (finished) grade (HAG) 5444 .0 ft.(m) ~ IOL . . a h) No. of permanent openings (flood vents) within t ft. above adjacen t grade 0 i) Total area of all permanent openings (flood vents) in C3.h 1960 sq. in. (sq. cm) (1960 SECTION D - SURVEYOR, ENGINEER, OR ARCHITECT CERTIFICATION This certification is to be signed and sealed by a land surveyor, engineer, or architect authorized by law to certify elevation information. I certify that the information in Sections A, B, and C on this certificate represents my best efforts to interpret the data available. I understand that any false statementmay be punishable by fine orimprisonment under 18 U.S. Code. Section 1001. & Associates, Inc 3-6036 FFprtA Gnrm At_4t III nn CFF PPx/PP.CF CIr1F POP (:r)NTINI IATInN PPPl Ar1PC AI I PPPVI(lI IC P:nITIr1NF IMPORTANT: In these spaces, copy the corresponding information from Section A. ~ For Insurance Company Use: CITY Wheat Ridge STATE CO'i ZIP CODE I Company NAIC Number 80033 SECTION D - SURVEYOR, ENGINEER, OR ARCHITECT CERTIFICATION (CONTINUED) Copy both sides of this Elevation Certificate for (1) community official, (2) insurance agent/company, and (3) building owner. 1_1 Check here if attachments SECTION E - BUILDING ELEVATION INFORMATION (SURVEY NOT REQUIRED) FOR ZONE AO AND ZONE A (WITHOUT BFE) For Zone AO and Zone A (without BFE), complete Items Et. through E4. If the Elevation Certificate is intended for use as supporting information for a LOMA or LOMR-F, Section C must be completed. Et. Building Diagram Number _ (Select the building diagram most similar to the building for which this certificate is being completed - see pages 6 and T. If no diagram accurately represents the building, provide a sketch or photograph.) - E2. The top of the bottom floor (including basement or enclosure) of the building is I_I_I ft.(m) 1-1Jin.(cm) 1_1 above or 1_1 below (check one) the highest adjacent grade. (Use natural grade, if available.) E3. For Building Diagrams 6-8 with openings (see page 7), the next higher floor or elevated floor (elevation b) of the building is 1J-1 ft.(m) 1J-Iin.(cm) above the highest adjacent grade. Complete Items C3.h and C3.i on front of form. E4. For Zone AO only. If no flood depth number is available, is the top of the bottom floor elevated in. accordance with the community's floodplain management ordinance? 1-1 Yes 1_1 No 1_ Unknown. The local official must certify this information in Section G. SECTION F - PROPERTY OWNER (OR OWNER'S REPRESENTATIVE) CERTIFICATION The property owner or owner's authorized representative who completes Sections A, B, C (Items C3.h and C3.i only), and E for Zone A (without a FEMA-issued or community-issued BFE) or Zone AO must sign here. The statements in Sections A, 8, C, and E are correct to the best of my knowledge. PROPERTY OWNER'S OR OWNER'S AUTHORIZED REPRESENTATIVE'S NAME ADDRESS CITY STATE ZIP CODE SIGNATURE DATE TELEPHONE COMMENTS Check here if attachments SECTION G -COMMUNITY INFORMATION (OPTIONAL) The local official who is authorized by law or ordinance to administer the community's floodplain management ordinance can complete Sections A, B, C (or E), and G of this Elevation Certificate. Complete the applicable item(s) and sign below. Gt. 1-1 The information in Section C was taken from other documentation that has been signed and embossed by a licensed surveyor, engineer, or architect who is authorized by state or local law to certify elevation information. (Indicate the source and date of the elevation data in the Comments area below.) G2. 1_1 A community official completed Section E for a building located in Zone A (without a FEMA-issued or community-issued BFE) or Zone AO. G3. 1_1 The following information (Items G4-Gg) is provided for community floodplain management purposes. G7. This permit has been issued for: I_I New Construction 1-1 Substantial Improvement G8. Elevation of as-built lowest floor (including basement) of the building is: _ft.(m)Datum: G9. BFE or (in Zone AO) depth of flooding at the building site is: _ft.(m)Datum: LOCAL OFFICIAL'S NAME - TITLE COMMUNITY NAME TELEPHONE DATE 1-1 Check here if attachments FFt`AA Fnrm R1_4t .II II nn - RFPI Ar:F.R At I PRF\/1r1 I.R Fr11TIr1N.R z m T n Q N v 0 0 0 D 0 0 0 9 o O m 3 m F 'd 'o 9 v D 9 '9 d m c 5 N o M i M 9 N a m N m ' r Z C d 9 c N d 2 D 9 d D OS d O. - d O d 3 o n > > ai N ' m N m' ~ N m y u m ~ o' m m. 'o d N 'O z z 3 3 = N 3 3 N A N N T C i C Iw ;W i o f y d w O S .iJ ~d 3 id T ~o is c' '3 m !N ~ ~ I m N > > W 'd W d lC m O K 10 0 Iy m m ~ O m o 7 I ~ °o m a h ' I I:°. I w m ~ d y I , i D D > ; A m L-11 m m ; O d N D 9 n n < < m d O_ 0 < < d d m F ? 6 d d < d W- q N C W O N F d O O ' d m w y d N 0 W N < n d O N O O N ~ ~ 0 v O 0 d o m a n o m o 'N o -o y m d < ° a , a ' o u cn O n N T N ~ O s n C w N 0 0 m 0 ~ N