PROJ02105

• Contract/PO #: FS0065FX
• Contractor Name: Greeley and Loveland Irrigation Company
• Contract Type: Loan
• Water District: 0
• County: Larimer
• Loan Projects - Doc Type: Feasibility Study

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Chapter III - Background Information ..

to drain the top five feet. In order to meet this rule, the low-level outlet works would have to be
approximately 6 to 7 feet in diameter. The large size of the outlet works is due to the large reservoir
surface area related to the head required to convey water through the outlet works. Additionally, the
channel downstream of the low-level outlet work~ and the crossing under Highway 34 does not have
the capacity to convey the required discharge. As a result, the cost to meet the reservoir evacuation
criteria is unreasonably large. The proposed low-level 48-inch diameter pipe along with the existing
high-level diversion structure and the pumps would drain the top five feet in roughly 6- to 7-days and
would require SED approval. Since this is an existing reservoir and the new outlet would be a
significant improvement over the existing outlet, the SED has indicated that they are willing to work S ~o
. -t?
with the Company regarding this rule. \ '" ~ "

F.2 Water Rights

There are two points of diversion from the Big Thompson River for the Greeley and
Loveland Irrigation System. The Big Barnes Ditch and the Greeley and Loveland Irrigation Canal.

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The Big Barnes Ditch diverts water from the Big Thompson River into Lake Loveland. The
water is then carried into Horseshoe Reservoir via Lake Loveland's north outlet. From there water is
regulated into either Heinricy Lake or Boyd Lake. H the water is sent to Heinricy Lake, the water can
be sent into Boyd Lake or regulated into Upper and Lower Hoffman Lakes. Westerdoll Lake
presently collects local drainage water, where it is regulated into Upper and Lower Hoffman Lakes.
From the Hoffman Lakes, water can then be conveyed to the Greeley and Loveland Irrigation Canal
where it is carried to Equalizer Reservoir. Equalizer Reservoirregulates the water in the Greeley and
Loveland Irrigation Canal for agricultural use east of Loveland.

The Greeley and Loveland Irrigation Canal diverts water from the Big Thompson River
downstream of the Big Barnes Diversion. Water is then conveyed to Equalizer Reservoir. The
Company also has the option to send water into or receive water from the Greeley and Loveland
Irrigation Canal via the upper Boyd Lake outlet, which is described in Chapter 1.

Additionally, the City of Greeley has the ability to divert water for municipal use from Lake
Loveland via a pipeline into a holding pond just west of Boyd Lake and north of Lower Hoffman
Lake. The holding pond water is then piped to the treatment facility, located just south of Boyd

Boyd Lake Dam Outlet System Feasibility Study

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