BOARD00531

• Board Meeting Date: 5/7/1969
• Description: Agenda or Table of Contents, Minutes, Memos
• Board Meetings - Doc Type: Meeting

March 1969. The completion date for this contract is March 1970.
Plans and specifications for relocation of a county road in the
project area are scheduled for completion in December 1969.

Preconstruct ion Planninq - Las Animas Local Protection Project

preconstruction planning of the authorized project for local pro- I
tection at Las Animas is about 85 percent complete. Funds for
initiation of project construction are not included in the Presi-
dent's budget for Fiscal Year 1970.

Preauthorization Planninq - Arkansas River above John Martin Dam

The Board of Engineers for Rivers and Harbors has essentially
completed preliminary review of the Albuquerque District report
submitted in June 1968 and by mutual agreement. additional studies
have been undertaken as follows:

a. Reanalysis of the recommended projects to reflect the impact
of the recently prescribed 4-5/8 percent discount rate on plan
formulation and evaluation.

b. Supplemental studies of the Fountain Creek flood problem
to determine whether a higher degree of flood protection for
the city of Pueblo would be justifiable by means of reservoir
control. Several damsites have been investigated. A suitable
site located about two miles north of the city limits of Pueblo
has been selected for further study of a reservoir project which
would provide the required storage for flood control and a size-
able pool for recreation. The State of Colorado has indicated
an interest in the establishment and maintenance of a permanent
pool of 20.000 acre-feet under provisions of P.L. 89-72. The
structure under study consists of an earthfill dam approximately
12.000 feet long with a crest width of 20 feet. rising l72.feet
above the streambed. The total storage capacity of the reservoir
at spillway crest would be 246.000 acre-feet of which 186.000
acre-feet would be allocated to flood control. 40.000 acre-feet
for sediment deposition. and 20.000 acre-feet to recreation.
Joint use of the sediment capacity is also being considered. In
addition, a gated outlet works and an uncontrolled spillway with
a notch to control flows to the downstream channel capacity of
15.000 c.f.s. would be provided.

If this potential reservoir project is found to be economically
justified. we will coordinate the plan with all State. Federal

I