WSP04347

• File Number: 8282.600.10
• Description: Colorado River Operating Annual Reports
• Basin: Colorado Mainstem
• Date: 1/1/1977
• Author: USDOI/BOR
• Title: Operation of the Colorado River Basin 1977 Projected Operations 1978
• Water Supply Pro - Doc Type: Publication

Upper Basin Reservoirs

Fontenelle Reservoir

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Chart I

STATISTICS
ACTIVE STORAGE-
RESERVOIR

(ACRE- ELEVATION
'EETI tHEn
344,834 6506
233)89 6491
194,962 6455
805SACRES

MAXIMUM STORAGE
RATED HEAD
MINIMUM POWER
SURFACE AREA (FULl)
RESERVOIR LENGTH
(FULl,.)

IBMILES

poweR PLANT
NUMBEA OF UNITS 1
TOTAL CAPACITY 10,000 KILOWATTS
-doel nor mcl"d' 563 Kf' f~r of deM/lra,..
b"o..,6406f~r

During the past year. Fontenelle Reservoir was op-
erated for power generation, flood control, fish and
wildlife enhancement, and recreation. During the
fall and winter of 1976-77. the reservoir water sur.
face elevation was reduced slowly from elevation
6.504 feet at the beginning of the water year to a
low elevation of 6,483 feet prior to spring runoff
in April. The minimum release during the fall and
winter was 700 cubic feet per second '(lP/s). All
releases were used to generate power and ,maintain
fish flows. Maximum inflow of 3,790 ft'/s occurred
in mid-June. Even though releases were reduced
to about 500 fP/s in late June to conserve storage,
I the reservoir did not fill during the 1977 runoff
season but reached a maximum elevation on Sep.
tember 18 of 6.501 feet and an active storage of
303,000 acre.feet. (Chart 1.)

OUTFLOW

UPPER aUARTILE
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