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HomeMy WebLinkAbout03/16/17I City of WheatP,idge PLANNING COMMISSION AGENDA March 16, 2017 Notice is hereby given of a Public Meeting to be held before the City of Wheat Ridge Planning Commission on March 16, 2017 at 7:00 p.m., in the City Council Chambers of the Municipal Building, 7500 West 29th Avenue, Wheat Ridge, Colorado. *Agenda packets and minutes are available online at http://www.ci.wheatridge.co.us/95/Planning-Commission 1. CALL THE MEETING TO ORDER 2. ROLL CALL OF MEMBERS 3. PLEDGE OF ALLEGIANCE 4. APPROVE THE ORDER OF THE AGENDA (Items of new and old business may be recommended for placement on the agenda.) 5. APPROVAL OF MINUTES—March 2,2017 6. PUBLIC FORUM (This is the time for any person to speak on any subject not appearing on the agenda. Public comments may be limited to 3 minutes.) 7. PUBLIC HEARING A. Case No. ZOA-17-01: An ordinance amending Chapter 26 of the Wheat Ridge Code of Laws concerning the regulation of small-scale alcohol production facilities. B. Case No. ZOA-17-02: An ordinance amending Chapter 26 of the Wheat Ridge Code of Laws concerning the regulation of site design standards for site grading retaining walls and stormwater facilities. 8. OTHER ITEMS A. Election of Officers 9. ADJOURNMENT Individuals with disabilities are encouraged to participate in all public meetings sponsored by the City of Whew Ridge. Call Sara Spaulding Public Information Officer at 303-235-2877 at least one week in advance of a meeting if you are interested in participating and need inclusion assistance. 1. 2. 3. 4. City of i�9r WheatMidge PLANNING COMMISSION Minutes of Meeting March 2, 2017 CALL THE MEETING TO ORDER The meeting was called to order by Chair OHM at 7:02 p.m. in the City Council Chambers of the Municipal Building, 7500 West 29a' Avenue, Wheat Ridge, Colorado. ROLL CALL OF MEMBERS Commission Members Present: Commission Members Absent: Staff Members Present: PLEDGE OF ALLEGIANCE Dirk Boden Emery Dorsey Donna Kimsey Janet Leo Scott Ohm Vivian Vos Amanda Weaver Alan Bucknam Ken Johnstone, Director Meredith Reckert, Senior Planner Lauren Mikulak, Senior Planner Gerald Dahl, City Attorney Tammy Odean, Recording Secretary APPROVE ORDER OF THE AGENDA It was moved by Commissioner DORSEY and seconded by Commissioner WEAVER to approve the order of the agenda. Motion carried 7-0. 5. APPROVAL OF MINUTES — April 21, 2016 It was moved by Commissioner LEO and seconded by Commissioner DORSEY to approve the minutes of February 16, 2016, as written. Motion carried 5-0-2 with Commissioner KIMSEY and VOS abstaining. Planning Commission Minutes March 2, 2017 -1— 6. PUBLIC FORUM (This is the time for any person to speak on any subject not appearing on the agenda.) No one wished to speak at this time. PUBLIC HEARING A. Case No. MS -16-07: An application filed by 38 Street, LLC for approval of a minor subdivision/consolidation plat for property zoned Residential -One C (R -1C) located at 3330 Chase Street. Ms. Reckert gave a short presentation regarding the subdivision/consolidation plat and the application. She entered into the record the contents of the case file, packet materials, the zoning ordinance, and the contents of the digital presentation. She stated the public notice and posting requirements have been met, therefore the Planning Commission has jurisdiction to hear this case. Commissioner DORSEY asked if curb and gutter will be discussed at a later date, once this case is approved. Ms. Reckert confirmed that curb and gutter will be assessed later. It was moved by Commissioner DORSEY and seconded by Commissioner KIMSEY to approve Case No. MS -16-07, a request for approval of a two -lot subdivision plat for property addressed as 3330 Chase, for the following reasons: 1. The parcels are consistent with the R -1C zone district regulations. 2. All requirements of the subdivision regulations have been met. 3. Utility districts can serve the property with improvements installed at the developer's expense. With the following condition: Fees in lieu of land dedication in the amount of $2497.29 be paid at the time of Mylar submittal for recording. Motion passed 7-0. 8. OTHER ITEMS A. Planning Commission Training No minutes for training session. 9. ADJOURNMENT Planning Commission Minutes -2— March 2— March 2, 2017 It was moved by Commissioner DORSEY and seconded by Commissioner LEO to adjourn the meeting at 9:18 p.m. Motion passed 7-0. Scott Ohm, Chair Tammy Odean, Recording Secretary Planning Commission Minutes -3— March 3— March 2, 2017 A, _ City of COMM�Wheatl i�dge PLANNING COMMISSION UN=DE WPMENT LEGISLATIVE ITEM STAFF REPORT MEETING DATE: March 16, 2017 TITLE: AN ORDINANCE AMENDING CHAPTER 26 OF THE WHEAT RIDGE CODE OF LAWS CONCERNING THE REGULATION OF SMALL-SCALE ALCOHOL PRODUCTION FACILITIES CASE NO. ZOA-17-01 ® PUBLIC HEARING ® CODE CHANGE ORDINANCE Case Manager: Lauren Mikulak Date of Preparation: March 7, 2017 SUMMARY: The City's zoning code is currently silent with respect to all alcohol production facilities. On a case-by-case basis, the City has approved small brewery operations by classifying them as similar to light industrial or restaurant uses, as appropriate. The goal of this code amendment is to provide clarity in the code for staff and for potential businesses in terms of what and where certain types of alcohol production is permitted in the City. Notice for this public hearing was provided by the Code of Laws. BACKGROUND: As the craft beer industry has expanded in Colorado and the Denver Metro area, the City's Community Development Department has experienced a continued level of interest from potential small-scale breweries and distilleries. The zoning code's silence on this land use, however, has created unnecessary frustration, delay, and uncertainty for staff and business owners. Staff raised this issue to City Council for discussion on December 5, 2016, and was directed to proceed with a code amendment to provide clarity and to establish reasonable regulations allowing small-scale alcohol production. At the January 5, 2017 Planning Commission meeting, staff presented a proposed regulatory framework, and Commissioners expressed their support for the approach. The enclosed ordinance includes the same provisions that were previously discussed with City Council and Planning Commission. Proposed Regulations The proposed ordinance provides a regulatory framework to allow small-scale alcohol production facilities in Wheat Ridge. Large-scale alcohol production is classified as "manufacturing," allowed in industrial zone districts, and is not addressed by this code amendment. The proposed regulations for small-scale alcohol production are be based on the size or production volume of an operation and based on whether the operation has a taproom. Taprooms provide a customer -facing element making an operation more appropriate to be located in a service- or retail - oriented zone district. The provisions of the code amendment are summarized below. Eating Establishment— The term "eating establishment" is currently used but not defined in the zoning code. A definition is proposed in the ordinance and will allow accessory alcohol production. These types of operations already exist in the City and would provide clarity for new businesses in the future. Microbrewery, microdistillery, and microwinery — Definitions for each of these terms are proposed in the ordinance and each is based on production volume. The definitions and volume thresholds are consistent with state liquor laws, industry standards, and regulations in other communities. • Taproom — A definition for "taproom" is proposed in the ordinance, and this is the operational feature that would differentiate where in the City small-scale alcohol production is permitted. Those without a taproom would be permitted only in the Industrial -Employment and Mixed Use -Commercial Interstate zone districts. Those with taprooms would require a special use permit in the Neighborhood Commercial and Restricted Commercial zone districts, but would be permitted in all other commercial and mixed use districts. Staff has worked closely with the Clerk's Office, which staffs the City's Liquor Licensing Authority. This code amendment would provide much needed clarity for staff and business owners and would modernize the zoning code relative to a well-established Colorado industry. RECOMMENDED MOTION: "I move to recommend approval of the proposed ordinance amending Chapter 26 of the Wheat Ridge Code of Laws concerning the regulation of small-scale alcohol production facilities." Exhibits: 1. Proposed Ordinance ZOA-17-01 / Small-scale Alcohol Production CITY OF WHEAT RIDGE, COLORADO INTRODUCED BY COUNCIL MEMBER COUNCIL BILL NO. ORDINANCE NO. Series 2017 TITLE: AN ORDINANCE AMENDING CHAPTER 26 OF THE WHEAT RIDGE CODE OF LAWS CONCERNING THE REGULATION OF SMALL-SCALE ALCOHOL PRODUCTION FACILITIES. WHEREAS, the City of Wheat Ridge ("City") is a home rule municipality operating under a charter adopted pursuant to Article XX of the Colorado Constitution and vested with the authority by that article and the Colorado Revised Statutes to adopt ordinances for the regulation of land use and protection of the public health, safety and welfare; and WHEREAS, in exercise of that authority, the City Council of the City of Wheat Ridge has previously enacted Chapter 26 of the Wheat Ridge Code of Laws (the "Code") pertaining to zoning, land use, and development; and WHEREAS, the City is witnessing increasing interest from operators of small-scale alcohol producers to locate new facilities in the City of Wheat Ridge; and WHEREAS, the City Council recognizes the possible benefits of allowing this use in the City relative to economic development; and WHEREAS, the City Council finds that this ordinance will provide much needed clarity in the zoning code regarding this use; and NOW THEREFORE BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF WHEAT RIDGE, COLORADO: Section 1. Section 26-123 (Definitions) of the Code is amended by the addition of the following definitions in their appropriate alphabetical locations: EATING ESTABLISHMENT. AN ESTABLISHMENT WHERE FOOD AND BEVERAGES ARE PREPARED AND SOLD TO THE PUBLIC, WHICH MAY INCLUDE ACCESSORY ALCOHOL PRODUCTION. MICROBREWERY. A FACILITY THAT PRODUCES NO MORE THAN FIFTEEN THOUSAND (15,000) BARRELS PER YEAR OF FERMENTED MALT OR MALT LIQUOR BEVERAGES ON SITE. MICRODISTILLERY. A FACILITY THAT PRODUCES NO MORE THAN FIFTEEN THOUSAND (15,000) GALLONS PER YEAR OF SPIRITUOUS BEVERAGES ON SITE. MICROWINERY. A FACILITY THAT PRODUCES NO MORE THAN ONE HUNDRED THOUSAND (100,000) GALLONS PER YEAR OF VINOUS BEVERAGES ON SITE. TAP ROOM. A USE ASSOCIATED WITH AND ON THE SAME PREMISES AS A MICROBREWERY, A MICRODISTILLERY, OR A MICROWINERY FACILITY WHICH SELLS AND SERVES ALCOHOL BEVERAGES FOR CONSUMPTION ON THE LICENSED PREMISES, SELLS ALCOHOL BEVERAGES IN SEALED CONTAINERS FOR CONSUMPTION OFF THE PREMISES, OR BOTH. Section 2. Section 26-204 of the Code, Table of Uses for Commercial and Industrial Districts, is amended by the addition of the following rows in their appropriate alphabetical location: Uses NC RC C-1 C-2 I -E MICROBREWERY, MICRODISTILLERY, OR S S P P P MICROWINERY, WITH A TAP ROOM P P P MICROWINERY, WITH A TAP ROOM MICROBREWERY, MICRODISTILLERY, OR MICROBREWERY, MICRODISTILLERY, OR P MICROWINERY, WITHOUT A TAP ROOM MICROWINERY, WITHOUT A TAP ROOM Section 3. Section 26-1111.13. Permitted Uses, Commercial Services and Retail, in the mixed use zone districts, is amended by the addition of the following rows in their appropriate alphabetical location: Use Group MU -C MU -C Interstate MU -C TOD MU -N Commercial Services and Retail MICROBREWERY, MICRODISTILLERY, OR P P P P MICROWINERY, WITH A TAP ROOM MICROBREWERY, MICRODISTILLERY, OR P MICROWINERY, WITHOUT A TAP ROOM Section 4. Severability, Conflicting Ordinances Repealed. If any section, subsection or clause of this Ordinance shall be deemed to be unconstitutional or otherwise invalid, the validity of the remaining sections, subsections and clauses shall not be affected thereby. All other ordinances or parts of ordinances in conflict with the provisions of this Ordinance are hereby repealed. Section 5. Effective Date. This ordinance shall take effect fifteen (15) days after final publication, as provided by Section 5.11 of the Charter. INTRODUCED, READ, AND ADOPTED on first reading by a vote of _ to _, this _ day of 2017 and ordered published in full in a newspaper of general circulation in the City of Wheat Ridge, and Public Hearing and consideration on 2 final passage set for , 2017 at 7:00 p.m., in the Council Chambers, 7500 West 29th Avenue, Wheat Ridge, Colorado. READ ADOPTED AND ORDERED PUBLISHED on second and final reading by a vote of _ to _, this day of 12017. SIGNED by the Mayor on this day of 2017. Joyce Jay, Mayor ATTEST: Janelle Shaver, City Clerk Approved as to Form Gerald E. Dahl, City Attorney First Publication: Second Publication: Wheat Ridge Transcript Effective Date: Published: Wheat Ridge Transcript and www.ci.wheatridge.co.us 3 City of Wheatl i I r1,ANNING CoM umrYDE WPMENT MEETING DATE: March 16, 2017 TITLE: AN ORDINANCE AMENDING CHAPTER 26 OF THE WHEAT RIDGE CODE OF LAWS CONCERNING THE REGULATION OF SITE DESIGN STANDARDS FOR SITE GRADING, RETAINING WALLS AND STORMWATER FACILITIES CASE NO. ZOA-17-02 ® PUBLIC HEARING ® CODE CHANGE ORDINANCE Case Manager: Lauren Mikulak Date of Preparation: March 8, 2017 SUMMARY: The City's zoning code currently regulates the design of buildings, landscaping, and parking, but fails to address site grading, stormwater facilities, and retaining walls—all of which can be equally visible elements. The goal of this code amendment is to establish reasonable minimum standards that promote context -sensitive designs for these features. Notice for this public hearing was provided by the Code of Laws. After witnessing a series of new development projects with substandard designs for stormwater facilities and retaining walls, staff posed the question to City Council as to whether it is appropriate to establish minimum design standards for these features. The issue was discussed with City Council at a study session on December 5, 2016 and with Planing Commission on January5, 2017. At both meetings, staff proposed a regulatory framework and provided photographic examples of average and upgraded designs. The enclosed ordinance represents a reasonable regulatory balance by promoting higher quality designs, but not being overly burdensome. The ordinance includes several new provisions that were recommended by Planning Commission in the January meeting. Proposed Regulations—Stormwater Faedities The purpose of a stormwater facility is to accommodate runoff that results from the impervious surfaces of a development. In some cases, these facilities are constructed below ground, but most often, they are above ground and are visible. Because of requirements to detain stormwater on site for a certain period of time, these facilities often include some type of basin or pond. In some instances, these basins are earthen ponds and in other cases they are constructed from concrete and represent a stark contrast to the natural features and well -articulated structures on a site. The purpose of the proposed regulations is to ensure that stormwater facilities are better integrated into site development, and further that they enhance development through thoughtful design. This could include landscaping, rocks, or surface treatments to concrete structures. Historically, best practice has guided the types of plantings that can be included in stormwater areas, but codified standards will provide more clarity for developers and their design teams. Based on input from Planning Commission, the requirement for upgraded concrete structures is only applicable when visible from a public street or public space. Proposed Regulations — Site Grading and Retaining Walls Because site grading and retaining walls are interrelated, they are proposed to be addressed together. The purpose of the new regulations is to require grading and wall designs that respect existing topography and surrounding properties. The design standards for retaining walls respond to several recent developments where tall retaining walls have been installed immediately adjacent to sidewalks and have created uncomfortable pedestrian environments. The proposed ordinance requires that in public spaces, walls and elevation changes be scaled to the pedestrian using terracing, landscaping, and material changes. For visual and maintenance reasons, steep slopes are explicitly not permitted. In the spirit of promoting more context -sensitive designs, grading plans must consider the impact to current and future development and rights-of-way. hi response to Planning Commission's recommendation, the ordinance includes a provision restricting turf grass on slopes steeper than 4:1 which, among other things, is difficult to establish and maintain. Applicability These new design standards would apply to new site development in all zone districts; to expansions of stormwater facilities or retaining walls of 15% or more; and to substantial modifications of stormwater facilities, walls, or site grading. The ordinance is proposed to be located in Article V of the zoning code, which addresses design standards such as landscape, parking and lighting. If the ordinance is approved, the provisions will also be included in the Architectural and Site Design Manual (ASDM), which supplements the zoning code. This document include photographs and descriptive captions which will help to communicate the standards. This excerpt from the ASDM is enclosed for reference. RECOMMENDED MOTION: "I move to recommend approval of the proposed ordinance amending Chapter 26 of the Wheat Ridge Code of Laws concerning the regulation of site design standards for site grading, retaining walls and stormwater facilities." ZOA-17-02 / Site Design Standards Exhibits: 1. Proposed Ordinance 2. Excerpt from the Architectural and Site Design Manual ZOA-17-02 / Site Design Standards CITY OF WHEAT RIDGE, COLORADO INTRODUCED BY COUNCIL MEMBER COUNCIL BILL NO. ORDINANCE NO. Series 2017 TITLE: AN ORDINANCE AMENDING CHAPTER 26 OF THE WHEAT RIDGE CODE OF LAWS CONCERNING THE REGULATION OF SITE DESIGN STANDARDS FOR SITE GRADING, RETAINING WALLS AND STORMWATER FACILITIES WHEREAS, the City of Wheat Ridge ("City") is a home rule municipality operating under a charter adopted pursuant to Article XX of the Colorado Constitution and vested with the authority by that article and the Colorado Revised Statutes to adopt ordinances for the regulation of land use and protection of the public health, safety and welfare; and WHEREAS, in exercise of that authority, the City Council of the City of Wheat Ridge has previously enacted Chapter 26 of the Wheat Ridge Code of Laws (the "Code") pertaining to zoning, land use, and development; and WHEREAS, Chapter 26 includes regulations to ensure that site grading, retaining walls, and stormwater facilities comply with all technical requirements; and WHEREAS, the City Council recognizes the need for elevating certain site design standards related to site grading, retaining walls, and stormwater facilities; and WHEREAS, the City Council finds that elevating these standards will improve the quality of development projects throughout the City; and NOW THEREFORE BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF WHEAT RIDGE, COLORADO: Section 1. Article V. - Design Standards of Chapter 26 of the Code is amended by the addition of a new subsection 26-507, to read in its entirety as follows: SEC. 26-507. STORMWATER FACILITIES. A. PURPOSE. THE PURPOSE OF THESE REGULATIONS IS TO ENSURE THAT STORMWATER FACILITIES ARE INTEGRATED INTO SITE DEVELOPMENT AND ARE DESIGNED TO ENHANCE THE DEVELOPMENT THROUGH THE USE OF INNOVATIVE OR LOW IMPACT DESIGN APPROACHES AND THROUGH THE USE OF MATERIALS AND LANDSCAPING THAT COMPLEMENT THE SURROUNDINGS. B. APPLICABILITY. THE STANDARDS AND REQUIREMENTS OF THIS SECTION SHALL APPLY TO: 1. SITE DEVELOPMENT IN ALL ZONE DISTRICTS; 2. SUBSTANTIAL MODIFICATION OF EXISTING STORMWATER FACILITIES OR EXPANSION OF SUCH FACILITIES BY MORE THAN FIFTEEN (15) PERCENT. C. DESIGN. 1. ALL STORMWATER FACILITIES SHALL BE DESIGNED AND MAINTAINED IN ACCORDANCE WITH THE CITY'S CURRENT SITE DRAINAGE REQUIREMENTS. 2. BELOW THE FIVE (5) YEAR STORMWATER SURFACE ELEVATION, PLANT MATERIAL SHALL BE LIMITED TO WETLAND PLANTINGS, GRASSES, OR OTHER GROUNDCOVERS THAT ENHANCE WATER QUALITY AND ARE APPROPRIATE BASED ON PERIODIC FLOODING AND FACILITY MAINTENANCE NEEDS. TREES AND SHRUBS MAY BE PLANTED ABOVE THE FIVE (5) YEAR STORMWATER SURFACE ELEVATION. 3. FOR CONCRETE STRUCTURES OR BASINS THAT ARE VISIBLE FROM A PUBLIC STREET OR PUBLIC SPACE, ROCKS, LANDSCAPING, AND/OR DECORATIVE CONCRETE SURFACE TREATMENTS SHALL BE UTILIZED TO SOFTEN THEIR APPEARANCE. 4. THE SIDE SLOPES OF STORMWATER FACILITIES SHOULD BE GRADUAL, AND GENERALLY LIMITED TO 4:1 OR LESS. 5. THE TOP EDGE OF SLOPES AND EMBANKMENTS SHOULD BE LANDSCAPED WITH GROUPINGS OF TREES AND SHRUBS. THIS SHALL NOT BE CONSTRUED TO MEAN TREES SPACED ON CENTER. PLANTINGS SHOULD BE LOCATED TO ALLOW MAINTENANCE ACCESS AS NEEDED. Section 2. Article V. - Design Standards of Chapter 26 of the Code is amended by the addition of a new subsection 26-508, to read in its entirety as follows: SEC. 26-508. SITE GRADING AND RETAINING WALLS. A. PURPOSE. THE PURPOSE OF THESE REGULATIONS IS TO ENSURE THAT GRADING DESIGNS RESPECT EXISTING TOPOGRAPHY AND ARE SENSITIVE TO EXISTING LANDFORMS AND THE SURROUNDING PROPERTIES. B. APPLICABILITY. THE STANDARDS AND REQUIREMENTS OF THIS SECTION SHALL APPLY TO: 1. SITE DEVELOPMENT IN ALL ZONE DISTRICTS. 2. SUBSTANTIAL MODIFICATION OF EXISTING RETAINING WALLS OR SITE GRADING OR EXPANSION SUCH WALLS BY MORE THAN FIFTEEN (15) PERCENT. C. DESIGN. 1. WALLS AND ELEVATION CHANGES THAT ARE ADJACENT TO PUBLIC SPACES SHALL BE DESIGNED TO PROVIDE A PEDESTRIAN SCALED ENVIRONMENT THROUGH THE USE OF TERRACING, LANDSCAPING, AND/OR MATERIAL VARIATION. 2. ALL RETAINING WALLS SHALL BE BUILT PER THE REQUIREMENTS OF ANY APPLICABLE CODES, INCLUDING BUT NOT LIMITED TO THE TECHNICAL CODES ADOPTED BY THE CITY AND CONTAINTED IN CHAPTER 5 OF THIS CODE. 3. LANDSCAPING SHALL BE PROVIDED IN COMBINATION WITH RETAINING WALLS TO SOFTEN THE APPEARANCE OF WALLS. 4. ALL TERRACED PLANTING AREAS BETWEEN WALLS SHALL BE OF SUFFICIENT WIDTH TO SUPPORT VEGETATION AND ROOT SYSTEMS. 5. SITE GRADING SHALL NOT ADVERSELY IMPACT ADJACENT PROPERTY AND/OR RIGHTS-OF-WAY. GRADING SHALL ANTICIPATE FUTURE DEVELOPMENT AND SHALL INTEGRATE WITH ADJACENT PROPERTY AND/OR RIGHT-OF-WAY. 6. SLOPES STEEPER THAN 3:1 ARE NOT PERMITTED. GRADES OF 4:1 OR LESS ARE ENCOURAGED. 7. TRANSITION GRADES SHOULD BE ROLLING AND NATURAL RATHER THAN ONE CONTINUOUS STRAIGHT LINE. 8. TURF GRASS SHOULD NOT BE USED ON SLOPES STEEPER THAN 4:1. Section 3. Section 26-1110 of the Code, concerning site design requirements in the mixed use zone districts, is hereby amended by the addition of two (2) new subsections, J and K, to read in their entirety as follows: J. THE REQUIREMENTS OF SECTION 26-507 SHALL APPLY IN ALL MIXED USE ZONE DISTRICTS. K. THE REQUIREMENTS OF SECTION 26-508 SHALL APPLY IN ALL MIXED USE ZONE DISTRICTS. Section 4. Severability, Conflicting Ordinances Repealed. If any section, subsection or clause of this Ordinance shall be deemed to be unconstitutional or otherwise invalid, the validity of the remaining sections, subsections and clauses shall not be affected thereby. All other ordinances or parts of ordinances in conflict with the provisions of this Ordinance are hereby repealed. Section 5. Effective Date. This ordinance shall take effect fifteen (15) days after final publication, as provided by Section 5.11 of the Charter. INTRODUCED, READ, AND ADOPTED on first reading by a vote of _ to _, this th day of 2017 and ordered published in full in a newspaper of general circulation in the City of Wheat Ridge, and Public Hearing and consideration on final passage set for , 2017 at 7:00 p.m., in the Council Chambers, 7500 West 29th Avenue, Wheat Ridge, Colorado. READ ADOPTED AND ORDERED PUBLISHED on second and final reading by a vote of _ to _, this day of 12017. SIGNED by the Mayor on this day of 2017. Joyce Jay, Mayor r_TIOr:61n Janelle Shaver, City Clerk Approved as to Form Gerald E. Dahl, City Attorney First Publication: Second Publication: Wheat Ridge Transcript Effective Date: Published: Wheat Ridge Transcript and www.ci.wheatridge.co.us 3.9 Stormwater Facilities Design Principle: Stormwater facilities should be integrated into site development and be designed to enhance the development through the use of materials and landscaping that complement the surroundings, or through innovative or low impact development approaches. Design Standards: 1. All stormwater facilities shall be designed and maintained in accordance with the City's current Site Drainage Requirements. 2. Below the 5 -year stormwater surface elevation, plant material is limited to wetland plantings, grasses, or other groundcovers that enhance water quality and are appropriate based on periodic flooding and facility maintenance needs. Trees and shrubs may be planted above the 5 -year stormwater surface elevation. 3. For concrete structures or basins that are visible from a public street or public space, rocks, landscaping, and/or decorative concrete surface treatments shall be utilized to soften their appearance. Design Guidelines: 4. The side slopes of stormwater facilities should be gradual, and generally limited to 4:1 or less. 5. The top edge of slopes and embankments should be landscaped with groupings of trees and shrubs. Plantings should be located to allow maintenance access as needed. 3 - Site Stormwater Facilities. Rocks and wetland plantings make this drainage channel a visual amenity that complements the area. Stormwater Facilities. Trees, wetland plantings, and stone walls (natural or stamped) soften stormwater facilities that are visible from a public street. Wheat Ridge Architectural and Site Design Manual 17 Site Grading and Retaining Walls. A pedestrian scaled environment shall be provided when walls and elevation changes are next to public space. Site Grading and Retaining Walls. Large grade changes can be accommodated in an attractive manner through the use of terraces and landscaping. Rolling Slope Stroi9ht Slope Site Grading and Retaining Walls. Transition grades should be rolling rather than one continuous straight line. 3.10 Site Grading and Retaining Walls Design Principle: Grading designs should respect the existing topography and be sensitive to existing landforms and surrounding properties. Design Standards: 1. Walls and elevation changes that are adjacent to public spaces shall be designed to provide a pedestrian scaled environment through the use of terracing, landscaping, and/or material variation. 2. All retaining walls shall be built per the requirements of the applicable building codes. 3. Landscaping shall be provided in combination with retaining walls to soften their appearance. 4. All terraced planting areas between walls shall be of sufficient width to support vegetation and root systems. 5. Site grading shall not adversely impact adjacent property and/ or right-of-way, and shall anticipate future development and integration of adjacent property and/or right-of-way. 6. Grades of 4:1 or less are encouraged, slopes steeper than 3:1 are not permitted. Design Guidelines: 7. Transition grades should be rolling and natural rather than one continuous straight line. 8. Turf grass should not be used on slopes steeper than 4:1. 18 Wheat Ridge Architectural and Site Design Manual