FLOOD02324

• Designation Number: 32
• County: Adams
• Community: Federal Heights
• Basin: South Platte
• Title: Water and Drainage at Niver Creek, Phases 1 and 2: Cities of Federal Heights and Thornton, Colorado
• Date: 2/1/1974
• Designation Date: 6/1/1974
• Floodplain - Doc Type: Floodplain Report/Masterplan

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As shown, the basin is composed of the main Niver Creek and two tribu-

taries, designated Tributary M and Tributary L. Tributary M is in the middle of

the basin and runs from Federal Boulevard southeasterly to its confluence with

the moin stream of Niver Creek, near 88th Avenue and 1-25. Tributary L is in

the lower part and runs from Federal to about 86th and 1-25, where it joins Niver

Creek.

The total drainage basin is about 6.6 square mi les, with about 3.7 square

miles draining into Niver Creek proper, 1.4 square miles in the middle tributary,

and 1.5 square miles in the lower tributary.

The area is quite fully-developed, and building construction continues
throughout the basin. We have examined aerial photographs and land-use mops,
and have met with the officials of Federal Heights, Thornton and Adams County;
on the basis of these meetings and after several fie Id inspections carried out over
about ten months, we estimate that the basin will be fully-developed within five
to ten yeal'1.

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Although the three broad land-use categories of residential, commercia I

and industrial use are evident throughout the basin, the upper end to about Huron

Street is primarily residential, with emphasis on mobile-home parks. The center

portion to about Washington Street is mostly commercial-residential, with many

stores and warehouses on either side of 1-25 and some single-family residences.

The lower portion from Washington Street to the South Platte River is residentiol-

industrial; many of the residences are multi-unit condominia, and most of the

industrial property below York Street has not been developed yet.

The basin characteristics indicate that at present about 35 percent of
the basin is impervious; this percentage will increase over the next few years to
about 50 or 55 percent at full development, if the present zoning and construction
plans continue unchanged.

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