Santa Ana River Design Memorandum Number 1. Phase 2. GDM on the Santa Ana River Mainstem Including Santiago Creek. Main Report and Supplemental Environmental Impact Statement
Santa Ana River Design Memorandum Number 1. Phase 2. GDM on the Santa Ana River Mainstem Including Santiago Creek. Main Report and Supplemental Environmental Impact Statement

Author: ARMY ENGINEER DISTRICT LOS ANGELES CA.

Publisher:

Published: 1988

Total Pages: 752

ISBN-13:

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The Santa Ana River Mainstem Project, including Santiago Creek, is designed to provide urban flood protection to the growing communities in Orange, Riverside, and San Bernardino counties. The project will provide various levels of flood protection ranging from 100-year to 190-year in areas most susceptible to damages from floodflows for over 2 million people and businesses within the three-county area. Most of the development is in the Lower Santa Ana River Basin (Orange County). The project will provide environmental enhancement in a currently degraded marsh area at the mouth of the Santa Ana River, thereby providing significant value as a wetland habitat for migrating waterfowl and fot the California least tern, a federally listed endangered species. The project is intended to provide increased recreation opportunities through project related recreational developments on the Lower Santa Ana River and on Santiago Creek. Water conservation is not an authorized project purpose, but incidental water conservation benefits would be realized as a part of the recommended plan. (FR).

SANTA ANA RIVER
SANTA ANA RIVER

Author: United States. Army. Corps of Engineers. Los Angeles District

Publisher:

Published: 1980

Total Pages:

ISBN-13:

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Santa Ana River Design Memorandum Number 1. Phase 2. GDM on the Santa Ana River Mainstem, Including Santiago Creek. Volume 7. Hydrology
Santa Ana River Design Memorandum Number 1. Phase 2. GDM on the Santa Ana River Mainstem, Including Santiago Creek. Volume 7. Hydrology

Author: ARMY ENGINEER DISTRICT LOS ANGELES CA.

Publisher:

Published: 1988

Total Pages: 257

ISBN-13:

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This volume contains hydrologic information in support of the general design consideration for Seven Oaks Dam, Prado Dam, Santa Ana River mainstem between Seven Oaks Dam and Prado Dam, Mill Creek levee, Oak street Drain, Santiago Creek, and lower Santa Ana River. (FR).

Santa Ana River Design Memorandum Number 1. Phase 2 GDM on the Santa Ana River Mainstem Including Santiago Creek. Volume 2. Prado Dam
Santa Ana River Design Memorandum Number 1. Phase 2 GDM on the Santa Ana River Mainstem Including Santiago Creek. Volume 2. Prado Dam

Author: ARMY ENGINEER DISTRICT LOS ANGELES CA.

Publisher:

Published: 1988

Total Pages: 791

ISBN-13:

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The recommended improvement to the existing flood control Prado Dam, which was completed by Corps of Engineers in 1941, consists of enlarging the reservoir capacity by raising the spillway crest 20 feet and the top of the dam 28.4 feet to elevations 563 and 594.4 feet, respectively. A new gated outlet structure capable of releasing 30,000 cubic feet per second, an auxiliary dike, and a dike along the Corona Expressway would be provided. Approximately 1,660 acres of land up to elevation 566 feet would be acquired for the enlarged reservoir. Interior dikes would be provided for the protection of the existing facilities at the Corona Sewage Treatment Plant, Alcoa Aluminum Plant, Corona Housing Tract, and California Institution for Women. The cost for the recommended improvement is estimated at $212,623,000, including $116,274,000 for land acquisition. (fr).