4210

• UCREFRP Catalog Number: 4210
• Author: U.S. Fish and Wildlife Service.
• Title: Preliminary Conceptual Approach to Recovery of Endangered Fish Species In The Upper Colorado River Basin
• USFW Year: 1985.
• USFW - Doc Type: Draft.
• Copyright Material: NO

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3. Construction of a water project results in
blockage of a stream's channel such that the range
of the endangered fish is reduced.significantl~ in
an area which~is known to be essential for the
continued survival of the species.
Therefore, mitigation'"Erequirements would be limited to
projects having direct physical_im~act on important areas
for endangered species, and. reasonable alternatives must be
developed which are related to the direct impacts. Under an
effective recovery plan, depletion of water under State
water rights administration systems would not adversely
affect the species.
5.3 REASONABLE AND PRUDENT ALTERNATIVES
Tn specifying reasonable and prudent alternatives for
projects directly impacting endangered fish species, the
Fish and Wildlife Service, i.e, the Secretary. should
consider project impacts on a case by case basis.
Alternatives should be defined to directly mitigate impacts
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of projects or to provide indirect mitigation so as not to
jeopardize the continued existence of the endangered
species. The type of alternative recommended should depend
upon the degree of impact of the specific project. The
kinds of alternatives which should be considered include:
Alteration of project facilities to mitigate
significant temperature impacts.
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