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WSPC06342
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Last modified
7/29/2009 10:23:21 AM
Creation date
10/9/2006 5:48:06 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8040.950
Description
Section D General Studies-General Water Studies
State
CO
Date
3/1/1976
Author
CWCB
Title
Summary Sheets-Updates-Feb 1978-Narrows Project
Water Supply Pro - Doc Type
Report/Study
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<br />II <br />~ll11~ <br /> <br />J te. <br />tlf7 -< <br /> <br />001874 <br /> <br />j.,J . /u.. oS /5 '1, (.o"~, ow. <br />10J~ .0t <br />fJ <br /> <br />stored in Narrows Reservoir would be released either into the South <br />Platte River through a river outlet for delivery to existing downstream <br />diversion works and through a canal outlet works directly into the Fort <br />Morgan Canal. Minimum downstream flows for fishery requirements would <br />be met by stream accretions, return flows, flows for operating the fish <br />hatchery, and minor releases from reservoir storage. <br /> <br />Major recreational facilities would be constructed as a part of <br />the project. It is estimated that approximately 1,225,000 visitor days <br />could be anticipated at the reservoir area within the first year of <br />operation, with a rapid increase thereafter. <br /> <br />" <br /> <br />Project Statistics <br />Estimated Allocation Costs: <br /> <br />Flood Control <br />Irrigation <br />Recreation <br />Fish and Wildlife <br />Highway Improvement <br />c<tNuo"~1 ~1I"Wi 4"~:, *eJ (PoL. '1.1- z",) <br />Total Cost <br /> <br />$ 19,23~ ,asa ;?O,4f!O,ODO <br />69,528,000 91, ".,</. """ <br />3(j, 737, <:loa .:l?.J2 3, ()~ <br />13,352,000 /"i. C5'l.IXJD <br />. -675,900 6. ~80.000 <br />j. <f'PtI,()(JO <br />$1J9, 526, eee Iv~ZCJ.o~ <br /> <br />Narrows Re~ervoir capacity (acre-feet): <br /> <br />Dead and inactive <br />Irrigation <br />Joint use (irrigation, flood control <br />and sediment) <br />Flood control <br />Surcharge <br /> <br />50,000 <br />373,000 <br />75,000 <br />475,000 <br />636,000 <br /> <br />Total Capacity <br />Estimated annual irrigation yield <br /> <br />1,609,000 a.f. <br /> <br />Benefit-cost ratio <br /> <br />119J.-000 <br />'$,~ <br />.J.-.5"'" to 1 <br /> <br />a.f,. <br /> <br />Environmental Impact <br /> <br />The principal environmental impact of the Narrows project will be <br />the inundation of several miles of stream channel by the reservoir. No <br />significant stream fishery now exists in that portion of the river. <br />However, a considerable reservoir fishery will be created by the water <br />impounded in the reservoir. Virtually all of the lands to be acquired <br />for the reservoir are now in private ownership. <br /> <br />Some loss of nesting sites for waterfowl and upland game birds <br />will occur. However, waterfowl use of the area is expected to almost <br />triple as a result of the increased water area which will be available <br />as the result of the reservoir impoundment. The hunting area for small <br />upland game, such as pheasants and rabbits, will be decreased, but will <br /> <br />-2- <br />
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