FLOOD00852

• County: Arapahoe
• Community: Arapahoe County
• Stream Name: Cherry Creek
• Title: Cherry Creek River Run Improvements
• Date: 9/1/1986
• Prepared For: Arapahoe
• Prepared By: Greiner Engineering Sciences, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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If the backwater computations result in lOa-year flood el ations
hiaher than those shown on the flood profiles in the GE report' ,out
less than 1.0 foot.higher), the Hoodway computations st be based
on flood elevation surcharges t.hat are limited to 1.0 foot above the /
lOa-year flood elevations shown on the flood pwfile iR th~ ~H"..."~,~
~ If the backwater computat ions result in lClO-year flood elevations
lower than those shown on the flood profiles in the GES report, the
floodway computations must be t,ased "n flood elE,vation surcharges
that are limited to 1.0 foot atove the new lOO-year flood elevations.

2. Delineations of the revised laC-year flood plain boundaries and lOa-year
floodway on a topographic map cf suitable scale and contour interval
to provide reasonable accuracy. The revised delineations must be
tied into the existing flood plain boundaries and floodway shown on
the effective FI&~ and FBFM fOI Douglas County, Colorado, upstream
and the GES report downstream cf the revised reach.

3. Documentation to show that Arapahoe County has approved the revised
floodway delineation.

If the requested information is not provided within the allotted time, the
processing of this request will be susperded pending receipt of this information.
Should you have any questions concerning this matter, please call members of
my staff in washington, D.C.. at [phone]

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Ac~n~ Chief, Risk Studies Division
FE,deral Insurance l\dministration

cc: The Honorable Betty Ann Dittemore, Chairperson, Arapahoe County
Commissioners