WSP11631

• File Number: 8443.400
• Description: Narrows Project - Reports
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 8/31/1964
• Author: Woodward-Clyde-Shera
• Title: Comparative Cost Estimates For Earth Dams At The Lower Weld County And Narrows Alternative Damsites
• Water Supply Pro - Doc Type: Report/Study

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: 3" R,prop r,)n I~t Bedding.......... ----1 30'

i MAXIMUM W S EI 4604" \ ~

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EXCLUSIVE, FLOOD CONTROL W S EI 4580-, I,!~Y'

ACTIVE CONSERVATION W S ~I 4566 , /~ ?,?~'l' I
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, EI 4550 ~/?" / Rolled
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I .;_;;:-:~ Dune Sand dSd// Earfhfill
Inacl;'/e and Dead IN S EI~l515 J c:O L I _~t~:::.:-;--"'- on an. ! (ImperviolJs
~ 1-___>>;:::/ Gravel and Cobbles at from borrow
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_____ 1""-- at

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12',151"PP"g~J r. ~,
'<- CUTOFF TRENCH
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Th.s drow,ng loken from USBR Draw,ng "101553-[;-19

Cutoff 10 bedrock ex.cepl to EI. 4430: 01 ~u(ied channel
approximate Sta 138 - 162

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CREST ~ 4610_

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NOTES

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----1 20'

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(3) Assume clJtoff dewatered from outside excb'Jot,on
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(4)

1.5)

No CJI0fl below EI 443U 01 bu"ed cnanlel. ""\

He 1(;] hI of dam, ,"t;:ser'/UI( allocations, spillWOfj and ourlet )

worKS capOCllj and c'Jsls osslJmed to De c9mparable .-/

io Narro......s ^:-:IS U S 8 R Growing ~.Jo 55'3 - ~'-19 ./
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SrHlr.kage - Excav 10 Ccmp Fill AS3umtd 1..25 I

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SCALE IN FEET

MAXIMUM SECTION

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50
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161

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................... ..-----12 Seeded To~ s.

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\....... Dune ':'and and ,-
Sand, Gravel, Cobbles
at I mile naul. --....

Silt, Sand

CAssum'd TOD Of Fu,mat

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