WSP04503

• File Number: 8142.600.20
• Description: Trinidad Project - Environmental Studies
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 3/1/1974
• Author: Corps of Engineers
• Title: Draft Environmental Statement - Trinidad Lake Project - Purgatoire River - Colorado
• Water Supply Pro - Doc Type: Report/Study

decree from the existing Model Reservoir to the Trinidad Reservoir.

.

The joint use capacity will be used for the storage of irrigation

water and for the accumulation of sediment (total of .39,000 acre-

~(~Il~

feet). The reservoir will store and regulate surplus flows as well

as flows accruing to the Model storage right.

The Purgatoire River Water Conservancy District, which includes

the Il-ditch systems, has been formed to represent these systems.

---

One function of the District will be to contract with the Federal

Government for payment of Federal OM&R expenses and repayment of

construction costs chargeable to irrigation.

The District will also assume the administration of water supplies

accruing to water rights owned by the ditch systems. The objectives

of the District's water administration will be to improve the effective-

ness of water use by: (1) limiting the service area to 19,717 acres

of irrigable land, and (2) restricting water deliveries to the seasonal

crop requirement.

3. Flood control pool. Approximately 58,000 acre-feet of

storage has been allocated for flood control storage. Initially the

pool will have about 2,107 surface acres and extend approximately 4.7

miles up the valley.

G. Construction Materials. Suitable embankment material is avail-

able from borrow areas and riprap quarries within project limits.

Construction of the embankment will require an estimated 8,083,000

cubic yards of earth fill and 190,000 cubic yards of rock protection.

An additionsl 1,948,900 cubic yards of earth will be used for railroad

fill. A majority of the borrow material will be obtained from

1-6

.