FLOOD10336 ‎(2)‎

• County: Adams
• Community: Brighton, Commerce City and Thornton
• Stream Name: South Platte River
• Title: Flood Hazard Area Delineation, South Platte River, Adams County
• Date: 4/1/2005
• Prepared For: UDFCD; Adams County; Brighton, Commerce City, Thornton, Metro Wastewater
• Prepared By: CDM
• Floodplain - Doc Type: Floodplain Report/Masterplan

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This report includes mapping identifying 100-year floodplain boundaries and 10- and lOO-year water surface
profiles. A data table is included showing floodplain data (including SOO-year flood information) and
flood way information based on both a O.5-foot and1.0-foot maximum rise in water surface elevations
Floodway limits have been adjusted to provide for consistent widths and water surface elevations.

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This FHAD was developed as a tool to assist sponsoring agencies and local officia
activities within the identified floodplains and flood ways. This report contains
the nature and extent of probable future floods that can be reasonably expected

s in managing development
nformation on past floods and
to occur in the Study Area.

This FHAD report provides f100dplam Information for approximately 20 miles of the South
through Adams County, extending from Franklin Street (Denver/Adams County line) at the
boundary, north to 168th Avenue, the downstream boundary (Adams/Weld County line)

'Iatte River
upstream

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Under separate cover, COM is providing technical informat
this report. This technical information contains all pertinent wi.
model, AutoCAD drawings, and MS Word documents on CD-ROM.

that supports the findings contained withm
~~I,:ulations and electronic files of the hydraulic

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In accordance with the Urban Drainage and Flood Control District (UDFCD) Agreement No. 03-07.01, dated
October 28, 2003, Camp Dresser & McKcc Inc. (COM) is pleased to submit this Flood Hazard Area Delineation
(FHAD) for the South Platte River in Adams County, Colorado. One hundred copies of this report have been
provided, per your request.

Dear Mr.

DeGroot:

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Subject:

Flood Hazard Area Delineation, South Platte River
UDFCD Agreement No. 03-07.01

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Mr. Bill DeGroot
Chief Floodplain Management Program & Information
Urban Drainage and Flood Control District
2480 West 26th Avenue, Suite 156-B
Denver, Colorado 80211

Technology

Very

-
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TcdJohn
Project M a er
Camp Dresser & McKee Inc

Erin Ansell, P.E
Project Engineer
Camp Dresser & McKee

ne.

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the result of many hours of work by the UDFCD, COM, and local sponsors. This coordinated
Ited in mapping that can form the basis for management of the South Platte River
threats to public safety.

Apri

effort
that mmimize

This report is
has res u

floodplain

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8,2005

1311 17th Street, SUite 1200
Denver, Colorado 80202
tel: [phone]
fax: [phone]

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4/8/05