FLOOD00591

• County: Weld
• Community: Greeley
• Stream Name: Cache La Poudre River
• Title: Floodplain and Floodway Analysis
• Date: 2/20/1994
• Prepared For: CWCB
• Prepared By: Brown & Caldwell
• Floodplain - Doc Type: Floodplain Report/Masterplan

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2. EARTH FILL PLACEMENT

1.

The Cd I is.

o Existing

o Proposed

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2.

lIas 1111 beeniwill be placed in '.he regulatory Ooodway?
If yes, please attach completed Riverine Hydraulic Analysis Form.

Has fill beeniwill be placed in noodway fringe (area between the {loodway
and IOO-year floodplain bouno'nries}? ..............

o Ves IXl No

3.

o Ves IX] No

If yes, then complete A, B, C, and D below.

A. Are Ii II slopes for granular materials steeper than one verti"al
un onc-and-one-halfhorizontal?

o Ves 0 No

I f yes. justify steeper slopes

B. Is adequate erosion protedion provided for !ill slopes exposed to moving Oood waters? (Slopps pxposed to
{lows with velocities o(up to 5 (eet per second ((ps) during the I DO-year flood must, at a minimum, be
protected hy a cover of grass, vines, weeds, or similar vegetation; slopes exposed to flow.'i with velocities
greata than 5 (ps during the IOO-year flood must, at a minimum. he protected by stonp or rock riprap.)
................. ...0 Ves 0 No

If no. describe erosion protection provided

C.

lIas all !ill placed in revised IOO-year Ooodplain been compaded to 95 percent of the maximum density
obtainable with the Standard Proctor Test Method or acceptable equivalent method? 0 Ves 0 No

o.

Can structures conceivably be constructed on the fill at any time in the future?

o Ves 0 No

If yes, provide certification offill compaction (item C. above) by the community's NFIP permit official, a
registered professional engineer, or an accredited soils engineer.

4.

llas fill beeniwill be placed in a V.zone?

o Ves 0 No

N/A

[ryes, is the fill protected from erosion by a naod control structure such as a revetment or
seawall? 0 Ves 0 No

If yes. attach the coastal stru.ctures form.

Riverine/Coastal Mapping f-orm

FormS

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