7748

• UCREFRP Catalog Number: 7748
• Author: Western Water Consultants, I.
• Title: Final Report on Little Snake River Depletions by Pot Hook, Three Fork and Powder Wash Rights.
• USFW Year: 1990.
• USFW - Doc Type: Laramie, WY.
• Copyright Material: NO

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additional release from Three Forks Reservoir will be made, up to a total of 52 cfs.
Instream flow requirements, other than that required for Savery Creek, have not been
quantified by biological studies and have been estimated for study purposes only.
3.3 MODELING SCENARIOS
Various project scenarios were modeled using WIRSOS for the 1930-1982 period
to determine the impact of these scenarios upon downstream flows. Five development
scenarios were selected for evaluation.
33.1 Scenarios No. 1, lA and 1B
Under Scenario Nos. 1, 1A and 1B, the Little Snake River Basin was modeled with
the addition of the Pot Hook Project to the Water Development Baseline. WIRSOS
output from these Scenarios were compared to the Water Development Baseline to
determine Pot Hook Project impacts upon the system. Results are discussed in Section
4.0.
3.3.2 Scenario No. 2
Scenario No. 2 is the same as Scenario No. 1 with the addition of the consolidated
Three Forks Reservoir Project to the system. All Three Forks water rights are junior to
the Pot Hook rights modeled in Scenario No. 1. Scenario No. 2 output was compared
with that of Scenario No. 1 to determine the incremental impacts of Three Forks. Results
are presented in Section 4.0.
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