FLOOD00189

• County: Denver
• Community: Denver, Lakewood
• Stream Name: Weir Gulch Tributaries
• Title: Major Drainageway Planning
• Date: 7/1/1978
• Prepared For: Denver County
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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D. PHASE A RECOMMENDATIONS
General - Protection against the 100 year flood was recommended for
all parts of the 1st Avenue Tributary, Dakota Avenue Tributary and the
Depew Street Sub-basin. The benefit-cost comparison showed the highest
ratio for the 10 year protection but the difference between the 10 year
and 100 year protection was considered insignificant.
1st Avenue Tributary - Construction of detention ponds west of Jay
Street and west of Benton Street with an improved channel along the
alignment of the existing channel were proposed for the reach west of
Sheridan Blvd.
Additional inlets for Sheridan Boulevard just north of 1st Avenue
were also proposed. Between Sheridan Boulevard and Weir Gulch replacement
of culverts and cleaning of the existing channel were recommended. The
construction of a 60 inch diameter conduit within 1st Avenue was
recommended to intercept runoff from sub-basins located south of 1st
Avenue and west of Sheridan Boulevard.
Dakota Avenue Tributary - Construction of detention ponds south and
west of Villa Italia Shopping Center were recommended to reduce flooding
along Nevada Place. A conduit carrying outflow from the detention ponds
along Pierce Street and Nevada Place to discharge into the existing open
channel east of Harlan Street. Improvement of the existing channel with
drop structures and maintenance access was the recommendation for the
section between Harlan Street and Sheridan Boulevard. From Sheridan Boulevard
to Weir Gulch the proposed improvements consist of an improved inlet for the
existing conduit, a second conduit and inlets.
Depew Street Basin - The installation of a conduit ranging in diameter
from 48 inches to 66 inches was recommended for protection against the 100-year
flood. The alignment was to follow essentially the existing street right of

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