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Home , Bridge Canyon Dam, Marble Canyon Dam

1/22/19

1944 state of report of how to bring water to Phoenix area

Published in 1946

Proposes a high that would impound water into National Park

Proposes – Project

NPS Director opposes high Bridge Canyon Dam and MCKC projects; does not oppose low Bridge Canyon Dam

1 1/22/19

2 1/22/19

COLORADO RIVER STORAGE PROJECT (CRSP) ACT (1956)

• Preceded by decision to drop proposed dam site at Echo Park in Dinosaur National Monument

• it is the intention of Congress that no dam or reservoir constructed under the authorization of this chapter shall be within any national park or monument.

• Authorization to build

• Curecanti (Aspinal) Unit on Gunnison River

• Flaming Gorge on Green River

• Navajo on San Juan River • Glen Canyon on

• Create Upper Colorado River Basin Fund

• Revenue generated by dams • Pay for participating projects

• powerplants to be operated so as to produce the greatest practicable amount of power and energy that can be sold at firm power and energy rates

• impounding of water nor production of electricity shall not preclude nor impair the appropriation of water for consumptive uses

3 1/22/19

Brower tried to argue that should not be closed and should only be utilized after had filled with fine sediment

Glen Canyon Dam closed in March 1963

4 1/22/19

Pacific Southwest Water Plan proposed in January 1963

Importation of water from outside the basin

Desalinization plants for the lower basin

Immense new power needs to be met by nuclear power plants (including Hanford Nuclear Plant, WA), coal plants, new hydropower plants (including Bridge Canyon [low or high not specified] and Marble Canyon) (hydropower plants to be built first to quickly generate revenue); reallocate revenue from Hoover and Parker Dams after their initial contracts had run out

CAP

Marble Canyon Dam preliminary work

5 1/22/19

Colorado River Basin Project Act of 1968

• authorized construction of water development projects in upper and lower basins, including the (CAP) • made the priority of the CAP water supply subordinate to 's apportionment in times of shortage • directed the Secretary to prepare, in consultation with the Colorado River Basin states, long-range operating criteria for the Colorado River reservoir system. • Reclamation participates in funding and operating Navajo Generating Station at Page

Marble Canyon National Monument established 1969; incorporated into Grand Canyon National Park by legislation in 1975

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