BOARD01744

• Board Meeting Date: 4/18/1958
• Description: Minutes and Resolution
• Board Meetings - Doc Type: Meeting

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941

The dam and dike across Bijou Creek will have a total
crest length of 34,000 feet and a height above foundation of
147 feet and will contain approximately 16,300,000 cubic yards
of material. River outlets and spillway will be constructed
on the north side of the river. A separate outlet will be
provided to maintain service to the Fort Morgan Canal.

The initial allocation of the use of visual space in the
proposed reservoir is as follows:

Superstorage. . . . . . . . . . . . .
Flood control . . . . . . . . . . . .
Joint use (flood and conservation). ,.
Conservation. . . . . . . . . . . . . . .
Dead storage (controlled by head required
at Fort Morgan Canal outlet) .

Total. . . .

818,000 acre_feet
250,000 " "
75,000 " "
323,000 " "
52.000 " "
1,518,000 " "

... .

. . .

The inviolate flood control space of 250,000 acre-feet and
the 75,000 acre-feet of 'joint-use space have been agreed upon
by the Corps of Engineers as being the capacity required to con-
trol floods of record on the South Platte River. This space will
also be sufficient to control Bijou Creek floods. The joint-use
pool is to be operated jointly for flood control and conservation
during the snowmelt period--April 15 to June 15. The flood con-
trol space will be used any time the conservation capacity is
full and the river inflow exceeds 10,000 second-feet. Sedimenta-
tion will encroach on the allocations given above, and it is
estimated that after 50 years of use the conservation and dead
storage space will be reduced by 58,000 and 17,000 acre-feet
respectively.

Water supply studies indicate that under the conditions of
upstream development which will prevail during the first years
of Narrows use all of the water made available by Narrows can be
used to alleviate shortages on lands now irrigated between Kersey
and Julesburg. If further upstream development takes place and
more Colorado River water is imported into the South Platte River
Basin, it might be possible to irrigate some lands now dry
farmed. Construction of any works for serving new lands will be
deferred until the water supply is proven adequate for that pur-
pose. At that time definite selection of the lands most feasible
for development will be made in conjunction with the local people.

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