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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FEMA USE ONLY

FORM 7

BRIDGElCUL VERT FORM-

Community ~ame: City of Greeley'& UntncDrnOrritprl tJpl r1 r.m1T1ry
Flooding Soutce: Cache La Poudre River
Project Namel1dentifier: City of Greelev

Identifier:

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1. Name of roadway, railroad, etc.:

Ash Avenue

2. Locationofbridge/C1oIlvert.along flooding source (in terms of stream distance o~ cross-
section identifier): _ .,' .' .
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3. This revision reflects (check one of the followmgl:

IKI N ew pri~ge/cu\'v~rt not medeled in the FIS

o Modified bridge/cuivert p~eviously modeled in the FIS

o New bridge/culvert previously ~~led in the FIS
(Explain why new analysis was performed.)

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Back und

Provide the following information about the structure:

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1. Dimension, material, and shape (e.g. two 10 x 5 feet reinforced concrete box culvert;
three 30-foot span bridge with 2 rows of two 3-foot diameter circular piers; 40-foot wide ogee
shape spi\1way)
145-Foot Span bridee with onp 1 fnn~ 0pnrcr pier

2. Entra..nce geometry of culvert! type of bridge opening (e.g. 30- - 750 wing walls with
square top edge, sloping el!lbankments and vertical abutments) 00 wing wall s ,
with sloping em~ankments:and ~ertical" apQtme~s

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3. Hydraulic model used to analyze the structure (e.g., HEC-2 with special bridge routine,
WSPRO,HYB) _ HEC-2 with special bridge routine

If different than hydraulic analysis for the flooding source,justify why the hydraulic
analysis used for the flooding source could not analyze the structure(s). (Attach
explanation)

Note: If any items do not apply to submitted hydraulic analysis, indicate by N/A

.One form per new/revised bridge/culvert

October 1992

Page 1 of6

APPUCAT1ONJCEIlTlJ'1CATJOH FClBIISfOR CONPlTlOHAL1.ET1'D OF YAPREVISIOH, u:TTEIlOPMAPllKYISION /oNDPHYSlCA1.1tAP nvJSIOH