WSP05441

• File Number: 8407.500
• Description: Platte River Basin - River Basin General Publications - Missouri River
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 6/1/1949
• Author: DOI
• Title: The Interior Department in the Missouri Basin - Progress Report 1949
• Water Supply Pro - Doc Type: Report/Study

oooaqs

COLORADO-BIG THOMPSON PROJECT

Marys Lake and Estes PO~ler Plants, Olympus Dam, Horsetooth
Feeder Canal and Rslated Transmission Lines

Description: Marys Lake Power Plant (8,100 kw) will be located
on the southwst side of Marys Lake (700 acre.feet) and will be a
reinforced concrete structure approximately 62 fect wide and 64 feet
long. Estes Power Plant (48,000 kw) will be located on the right
bank of the Big Thompson River and will be reinforced concrete struc-
ture approximately 98 feet wide and 145 feet long.

Olympus Dam ,all consist of a concrete gravity-type spillw~ sec-
tion at the right abutment and an earth embankment, extending from
the concrete section across the river channel to the left abutment,
with a total crest length of approximately 1,880 feet and a maximum
height above the river bed of about 56 feet. Horsetooth Feeder Canal
will be 13 miles long and contain four tunnels.

The following are the estimated costs of the principal features
of this portion of the project: Harys Lake and Estes Power Plants,
and appurtenant structures ~14,340,OOO, and Horsetooth Feeder Canal
and tunnels $6,593,000.

A graphic representation of the work performed in this area
during the year is shown on the opposite page. The following is a
brief comparison of the fiscal year 1949 progr8lll vs. accomplishments.

Prol!I'8IIl FY49

Construction was scheduled for
completion on the four tunnels
of Horsetooth Feeder Canal.
New construction was scheduled
to start on the following trans-
mission lines: Flatiron to
Greeley, Estes to Marys Lake
and Estes to Granby. Construc-
tion ~as to continue on Marys
Lake & Estes Park Plants and
Olympus D8IIl.

Accomplishments FY49

The contract for the construc-
tion of the four tunnels of
Horsetooth Feeder Canal was
completed and a new contract
was awarded on M~ 20, 1949
for the canal construction be-
tween the tunnels. Contracts
were awarded for the Flatiron
to Greeley Transmission Line
and an award was authorized for
the construction of a cable
through the Alva B. Adams Irri-
gation Tunnel, and also for
the Estes to Marys ,Lake Linp.B.
Construction sta~us on all fea-
tures is shown on opposite page.

37