C150242 Feasibility Study

• Contract/PO #: C150242
• Contractor Name: Seven Lakes Reservoir Company
• Contract Type: Loan
• Water District: 0
• County: Larimer
• County: Weld
• Loan Projects - Doc Type: Feasibility Study

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Executive Summary

The purpose of this study is to examine the feasibility of alternatives to
accomplish two main objectives of the Seven Lakes Reservoir Company (SLRC)
associated with replacement of a railroad crossing over SLRC's critical flow path
through Dry Creek. The various alternatives were evaluated based on technical,
financial, environmental and institutional feasibility grounds. The first objective is
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to replace a 1 OO-year old deteriorated railroad culvert structure in Dry Creek that
is at the end of its useful service life. The ~~ond objective associated with the

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replacement of the railroad culvert structure is to improve the flow transfer
capacity of the Greeley & Loveland Irrigation Company's (GLlC) Lake Loveland
Reservoir to the Seven Lakes Reservoir Company's Horseshoe Reservoir.
Presently the railroad culvert structure restricts the flow capacity of water from
the Lake Loveland North Outlet to Horseshoe Reservoir. This effort is intended to
assist the Seven Lakes Reservoir Company to provide irrigation water, in
cooperation with The Greeley & Loveland Irrigation Company (GLlC), to
approximately 15,000 acres of land in a safe and efficient manner. This study
examines the feasibility of the Company's objectives described in more detail as
follows:

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The Dry Creek Enhancement Project would include removal and replacement of
five existing railroad-crossing tunnels in Dry Creek North of Lake Loveland. The
structure is nearly 100 years old and the railroad crossing agreement, dated
1905, between the Colorado and Southern Railway Company (now Burlington
Northern Santa Fe Railroad) and the Seven Lakes Reservoir Company required
that SLRC bear all expense incurred in the construction, maintenance, repairs or
renewals of the canal and tunnels. This study evaluates the various methods for
replacement of the tunnels under the BNSR as well as needed capacity
improvements, within existing decrees, that would result through this section of
canal. This section of canal transfers water from Lake Loveland to Horseshoe
Lake and then to Boyd Lake. A complication associated with this project is the