WSP12030

• File Number: 8441.400
• Description: Colorado Big Thompson Project - Reports
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 4/1/1987
• Title: Joint-Use Reservoir and Green Mountain Exchange Projects - Final Report
• Water Supply Pro - Doc Type: Report/Study

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2.0 ELEMENTS SELECTED FOR RECONNAISSANCE EVALUATION

Nine reservoir sites were initially identified by the Authority for consideration as Joint-Use

Reservoirs or as Replacement Reservoirs for the Green Mountain Exchange Project. The Authority

also identified the general' requirements for the conveyance system. Selection of the candidate

reservoir sites for this study was based on the existence of a water right or ciaimed water right at the

site, geographic location within the Colorado River drainage, and previous studies conducted by the

CRWCD, DWB, USBR and others. As a result of pre-reconnaissance evaluation and screening, six

reservoir sites and one conveyance route were selected for reconnaissance evaluation. This chapter

describes the nine reservoir sites and the results of the initial screening analysis.

2.1

RESERVOIR SITE DESCRIPTIONS

This section describes each of the reservoir sites which were considered during the pre-
<;J reconnaissance evaluation.

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Red Mountain: The Red Mountain Dam Site is located on the Colorado River one mile east of

Kremmllng, Colorado. The dam would be located at a narrows, approximately 600 feet wide, formed

by the base of Red Mountain to the north and a terrace extending from Junction Butte to the south.

Upstream, a broad valley 4000 to 5000 feet wide would form the reservoir area. Reservoir capacities

ranged from 84,000 af to 140,000 af.

Havoark: The Haypark Dam Site is located on the East Fork of Troublesome Creek,

approximately 12 miles northeast of Kremmling, Colorado. Troublesome Creek flows south and

enters the Colorado River 4 miles east of Kremmllng. In the reservoir area, the East Fork of

Troublesome Creek meanders through a 600-foot wide valley floor. Reservoir capacities of 20,100 af

to 3 t ;000 af were considered.

Wolford Mountain Sites A and A': Wolford Mountain Site A is located on Muddy Creek, 1 mile

upstream from Kremmllng, Colorado. Site A', a refinement due to geotechnical concerns, is located

3800 feet upstream from Site A. At Kremmling, an east-west trending ridge forms a 280.foot high

bluff which overlooks the town. The north.slope of this ridge would form the right abutment of the

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