HomeMy WebLinkAbout05/04/1972
MINUTES
May 4, 1972
The one hundred and fifty-seventh regular meeting of the Wheat Ridge
City Council was called to order by Mayor Albert E Anderson at
7 30 p.m at 7390 West 38 Avenue.
Aldermen attending were Dr. Paul Abramson, Jack Bramble, Joseph
Donaldson, Robert Howard, Calvin Hulsey and Ray Pepe.
Also attending were Mayor Anderson, Clerk Louise Turner City
Attorney Maurice Fox, staff members and interested citizens.
Walter Grande, Finance Officer presented information and bids on an
aerial basket device and brush chipper. Low Bids, both from Wrights
Tree Service were aerial basket - $13,979.00 and brush chipper _
$4,549 00.
Resolution No. 167,appropriation Resoltio~ was introduced by Alderman
Donaldson and read.
Motion by Alderman Abramson "I move the following be added after the
listings 'Be It Further Resolved that the truck chassis, previously
approved by Motion to be purchased from Account No. 490 be purchased
instead from Account No. 453.14.'" Motion was seconded by Alderman
Hulsey and passed 6-0
Motion by Alderman Donaldson "I move that Resolution No. 167 be
approved as amended." Motion was seconded by Alderman Abramson and
passed 5-1 with Alderman Howard voting "nay."
Motion by Alderman Bramble "I move the Treasurer be authorized to
purchase a 50 foot aerial basket device and a brush chipper from
Wright Tree Service at a total cost not to exceed $18,528.00 from
Account No. 453.14." Motion was seconded by Alderman Hulsey and
passed 5-1 with Alderman Howard voting "nay."
Glen Taylor, Public Works Director, presented a written report to
Council and spoke on the deterioration of Marshall Street bridge.
Mr. Taylor stated present restrictions have not been obeyed, that
it would qualify for Federal Aid but Federal Aid is on a state-wide
basis and there is no assurance of getting it, that if the bridge
were to be closed a week or ten days, notice should be given to the
public, however, that he hesitiated to keep it open even that long.
Also, that the bridge is 20 feet wide and is used by 7,000 cars per
day and that AASHo standards are 30 foot width for that amount of
traffic. The complete written report is attached to the Minutes
and filed in the General File under Streets.
The following comments were made
Mayor Anderson who stated that this was one of 16 items sub-
mitted to the County for consideration, none of which was directed
on to the State.
Alderman Bramble who stated that the bridge should be made one-way
and a large obvious sign posted which would say "condemned - Cross at
Your Own Risk" He also said that it might be possible to use culverts
with a covering of cement as had been done on Sheridan.
Alderman Abramson stated that if it is structurally unsound he favored
having the Director of Public Works close it down.
Alderman Pepe who stated that he was concerned that some businesses
would suffer and that he was disappointed that Arvada from which much
of the traffic comes had not shown more concern.
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Motion by Alderman Howard "I move that the Director of Public Works
be instructed to barricade the existing Marshall Street Bridge at
Clear Creek from all vehicular traffic at midnight on Friday, May
the 12th, 1972 This time being adequate to notify the concerned
governmental agencies (City of Arvada and the State of Colorado and
County of Jefferson) and those people presently utilizing the structure
Additionally, I move that we expend all the necessary effort to
obtain that funding required for the structure's removal and replacement"
Motion was seconded by Alderman Donaldson and passed 5-1 with Alderman
Bramble voting "nay."
Mr. Taylor stated that alternate routes would be Harlan Street and
Sheridan and that Arvada would take care of the pre-closing signs
Motion by Alderman Bramble "I move that the Mayor be authorized to
execute the proxies for Consolidated Mutual Water Company." Motion
was seconded by Alderman Donaldson and passed 5-1 with Alderman Abramson
voting "nay" because he felt the Motion should have specified "for this
year."
Motion by Alderman Pepe "I move that Myron Nixon be reappointed to the
Arborist Committee." The term is to be as specified in the Ordinance
Motion was seconded by Alderman Bramble and passed 6-0.
Motion by Alderman Pepe "I
to the Personnel Committee."
and passed 6-0.
move that William Thornton be reappointed
Motion was seconded by Alderman Bramble
Motion by Alderman Donaldson "I move the matter be continued for one
week and the remaining appointment to the Personnel Committee be made
next week." Motion was seconded by Alderman Bramble and passed 5-1
with Alderman Howard voting "nay."
WF-72-o1 Flood Plain Request by William Blevins was brought up for
consideration
Alderman Abramson read a Finding of Fact prepared by him (relative
to the request) and made the following Motion "I move that the Finding
of Fact as presented and eXcluding Section I be accepted by Council "
Motion was seconded by Alderman Hulsey.
Alderman Pepe said he felt this Finding of Fact should be defeated
because he was in favor of the original Finding of Fact prepared by
the Planning Department.
Question was called and Motion was defeated 3-2 with Alderman Bramble
abstaining and Aldermen Howard, Pepe and Donaldson voting "nay."
Alderman Abramson recommended that since it was early Council might
discuss and reword the Finding of Fact
Motion by Alderman Donaldson "I move we adjourn" Motion was seconded
by Alderman Howard and passed 3-2 with Alderman Bramble abstaining and
Aldermen Abramson and Hulsey voting "nay."
Meeting was adjourned at 9 30 p.m.
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Louise F Turner ~
City Clerk
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REQUEST FOR COUNCIL ACTION
DATE May 4, 1972
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1.
Request City Council action as per attached motion, resolution, or
ordinance. (Underline one)
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Supporting Data:
a. The Problem:
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Marshall Street Bridge
b. The Factors:
(1) A visual inspection of the subject structure revealed
the following:
(a) Bridge and approach span decks have deteriorated
to point approaching complete failure. This is
particula~ly obvious on the bottom surface of the
north approach span where a large area of re-
inforcing steel is visible due to a loss in the
concrete cover.
(b) Concrete, with~tanding those loads (dead and live)
applied by the ten 24" "I" beams (5 under the
---- north and south approach spans), is approaching
complete failure beneath their respective bearing
plates at the north abutment, north pier and south
pier.
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(c) Spalling and fractures throughout the north abut_
ment, north pier and south pier, indicate a general
deterioration and an unknown reduction of structural
integrity.
(2) An examination of the available documentation relative to
the 8ubject structure revealed the following:
(a) Bridge was removed from the State of Colorado's
Transportation SYstem by Resolution. Number 1356.0
on February 7, 1966 at which time it was reported
to be in need of repairs.
('0)
On July 6, 1971 in responGe to a request by the
City of Wheat Ridge, the State of Colorado's
Division of Highways submitted an inspection
report on the subject structure which ngrees sub-
stantially with items 2.b. (1) (n), l.b. (1)
(b) and 2.b. (1) (c). Additionally, it Bhould be
noted, the Division of Highways reco~ended a ten
ton limit be imposed immediately and take ~o8e
I steps necessary to correct the structural deficien_
cies.
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c.
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Pages 2 of 4
(c)
The Federal Aid System Plan prepared by the
Division of Highways, dated March 8, 1972
identifies Marshall Street as Federal Aid
Primary Type II Roadway. This designation
qualifies the City of Wheat Ridge for obtaining
funds from the TOPIC's program for the repair
or removal and replacement of the existing
structure. (Note This project would be subject
to those priorities established by the Division
of Highways on a state wide basis.)
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(3) The following is a list of those actions which have
been effected to date, relative to the subject
structure.
(a) On july 9, 1971 a load limit (10 ton gross)
and a maximum speed limit (15 MPH) was imposed.
(b) Due to driver disregard of the preceding load
limit and the associated problems of enforcement
an additional restrictive load limit (3/4 ton
trucks or less) was imposed on December 15, 1971.
(Note Speed and load limit enforcement remains
a problem.)
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(c) At the request of the Department of Public Works,
a local Consulting Engineer submitted a proposal
on March 28, 1972 outlining those investigative
steps necessary to analyze the present adequacy
and structural integrity of the subject structure.
The cost of this study would necessitate an ex-
penditure of some $4,000 (~).
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(4) Coordination with those interested Governmental Agencies
(The City of Arvada and the State of Colorado) relative
to the possible closing of the subject structure disclole~
the fOllowing:
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(a) The City of Arvada expressed a concern for those
citizens residing within their city li~its which
would be inconvenienced by the ClOSing, but in-
dicated there were sufficient alternate routes
available and capable of absorbing that traffic
presently carried upon Marshall Street between
52nd and Harlan Avenues.
(5)
(b) The State of Colorado's Division of Highways
indicated that the closing would not impact
the present design of Interstate 80 South.
Additional coordination with officials of the
Division of Highways provided new avenues to
research in order to raise the priority of
this project relative to future TOPICS funding.
The present vehicular traffic count of 7000 ADT
would require a 30 foot width between the curb ~
faces as determined by that criteria within the
AASHO Geometric Design Standards. The' existing
structure has a 20 foot Width, substantially lesl
than that required.
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Page 3 of 4
(6)
The repair or removal and replacement of this
structure wit~ funds generated totally by the
~iti7.ens of Wheat Ridge would be inequitable if
based upon those benefits derived from the im.
provement.
(7) Last, but necessarily the least, some local
businesses between 52nd and Harlan Avenues
would be adversely affected by the closing
of the structure.
. C. Possible Solutions:
(1) Leave the subject structure open to the present restricted
traffic and explore financial avenues for its repair or
removal and replacement while pursuing one of the following:
(a) Provide stringent enforcement of the ~xisting
speed snd load limits as well as frequent
visual structural inspections observing the
effect of that traffic upon the structure.
(b) Initiate an investigation in order to determine
its present structural adequacy. This study
would include a cost estimate of that effor~
necessary to restore the structure to its
original configuration. Note This would
necessitate a $4,000 (~) expenditure in a
structure which is presently classified as
inadequate relative to minimum AASHO require-
ments. Additionally, an expenditure of this
magnitude (4,000 ~) would give titular approval
to the implementation of a design package and
subsequent construction repairs.)
(2) Close the subject structure. to all vehicular traffic and
expend no effort on its repair or removal and replacement.
(3) Close the subject structure to all vehicul~r tr~ffic and
expend all the effort necessary to obtain funds for its
removal and replacement.
Conclusion - Recommended Action
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In the opinion of the Director of Public Works the subject
structure has an unknown structural sufficiency and represents
a real danger to those persons utilizing its services. There-
fore, it is recommended that the structure be closed inmediately
and expend that effort necessa~y to arrange for f~nds for its
removal and replacement. Additionally, it is recommended that no
funds be expended in its repair due to its present obsolescence.
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Attachments (check one)
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None
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Additional information on 2 abovQ attached.
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FLOOD PLAI~ DISCUSSION
The above referenced U S Army Eng~ncer Report lndicates
that an Intermediate Regional F .Lood in L2,la GU.Lcn \Ji.Ll. yield
approximately 3800 CFS just below ..~ple Grove Reservolr, a00ut
2 5 miles upstream from ~ne lots being considered, and 1300
CFS at its mouth, about 750 feet downstream from tne lots being
considered Further, the Report, by Plates 26 a;d 32, shows
that the flood spreads out to the north of Lena Gulch ~nto a
secondary channel. Inasmuch as only 1::;00 CFS of flow lS indi-
cated at the mouth of the Lena Gu:ch, and inasmucn as the
distance from the mouth to the lots being considered ~s rela-
tively short, it appears that Lena Gulch at the line of Hoyt
Court would be called upon to carry about 1300 CFS T~e pro-
file of Independence Court, showing the south bank of Clear
Creek to be about 1 3 feet below the roadway at Lena GL.lch,
would tend to support this conclusion Further, the c~annel
cross-section area t the line of Hoyt Court at reasonable rate
of flow would also support this conclusion
The attached prints do not snow the profile of Lena Gulch,
however, field determination indicates a grade of apprOXL~ate.LY
o 5% from Independence Court eastward to the east limit of
Fernwood Subdivision II
CHP~GE IN CHANNEL SECTION
~ In order to provide a building pad with an elevation 2
feet above the flood crests, in compliance with ORJn~A...\JCE No
68, Series of 1970, approximately 50% of the channel area at
the line of Hoyt Court will be eliminated This condition pro-
vides for building space on Lots 4, 5, 6 and 7 of Fernwood S~b-
division II
4 The prints attached hereto do not show the limits of fill
if only Lots 4 and 7 are 0uilt upon and Lots 5 and 6 remain un-
improved It should be noted that under this condition of lot
improvement, only about 10% of the channel area at the line of
Hoyt Court would be eliminated
FLOOD-PROOFING MEASURES
Inasmuch as the structure will be located anove flood e~e-
vation and, inasmuch as no basement is contempiated, additional
flOOd-prOOfing measures as defined in said Ordinance are deemed
to be unnecessary
Respectfully SUbmi~ted,
~ANE ENGINEERING SE~VICE
By
Registered PrOfessional Engineer
Decemner 6, 1971
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LANE: EI\:GINEERING SERVICE:
HeWARD AI-AN C
R.giJe.,.d Prof.,IIO".1 E"-;,,,..,
R~"Jt.,.d urwi Su"",yO'
CIVIl.. E1'OGI1'.EERS AND I..AND ?I..AN1'OEi'lS
&DOO W FOURTEENTH ....VE. . LAKEWOOD. eOl-o. 60215
C::MMETT L. LANE
R.w;JI",.J Prol..uiOf'1.1 En;in..,
R.~I'~," L.rwI Sw,.....)"Ol"
T&LEPHONE :l33-404:l
DRA.I~lJ...GE RSPORT
FERM100D SU3DIVISION II
AT LENA GULCH
W-rlEAT RIDGE, COLORADO
PURPOSE
This Drainage ReDor~ h&s Deen prepared for ~he purpose of
requesting a Specio~ .;:..:emption Permit c.S proviced for ~r. O:::OI-
NlU~CE No 68, Series of 1970, City of Wheat Ridge, Colorodo,
allowing construction of double rcsi.c-tial units on Lots 4, 5,
6 and 7 of Fernwood Subdivision II at Hoyt Court, north of West
39th Avenue
FLOOD PLAIN INFO~'~TION
The magnitude of the design flood, the e~evation of the
flood crest, and the limits of the flood within the flood pLain
have been obtained from "FLOOD PI.,.'\IN INFOR.1.:l.TION, VOLU:;Z V,
DE~~ER ~illTROPOLITAN AREA", prepared by the U S Army Engineer
District, Corps of Engineers, Omaha, Nebraska, Nove~er 1970.
Specific data used in this Report is found at the following
specific parts of the U. S. Engineer document:
1 Table 7, Flood Disctarges
2 Plate 26, Lena Gulch Flood Areas
3 Plate 30, Lena Gulch Profiles
4 Plate 32, Lena Gulch Cross Sections
ATTi\CHED PRINTS
The following prints are attached for information purposes
and for ease in showing existing and proposed features
S113-2-1
Aerial photo, taken in 1970, with acd~d
flood pla~n data, lot location, stree~
names, waterways, and extent of fil~ re-
quired to meet the City of Wheat Ridge
Ordinance requirements
S113-2-2
A print showing the profiles of Indepen-
dence Court and Hoyt Court, the f~ood
crest eleva~io~s, t~e extent' of fill into
the flood plain, and other pertinent data.