Home > California > Corona%2Bvicinity > Prado Dam, Santa Ana River near junction of State Highways 71, Corona, Riverside County, CA
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Item Title
Prado Dam, Santa Ana River near junction of State Highways 71, Corona, Riverside County, CA
LocationSanta Ana River near junction of State Highways 71,
Corona%2Bvicinity, CA
Find maps of Corona%2B, CA
Created/Published
Documentation compiled after 1968.
Notes
Survey number HAER CA-178
Unprocessed field note material exists for this structure (N402).
Significance: The construction of Prado Dam was a significant event in the history of flood control in southern California and specifically Orange County. The Dam has played a vital role in the economies and development of Orange, Riverside, and San Bernadino counties. Prado Dam is a distinctive and recognizable representative of its type, period, and method of construction, of worthy design and retaining unusual integrity. At the time of its construction it was the largest earthen dam in the United States. The attention to architectural detail, particularly the control house and control tower, demonstrates that government structures can be aesthetically pleasing and simple at the same time.
Collection
Historic American Engineering Record (Library of Congress)
Contents
Photograph caption(s):
1. 'SANTA ANA RIVER IN SANTA ANA CANYON. ORANGE COUNTY.' This is an oblique aerial view to the northeast taken from the northeast extremity of the canyon, showing, in the middle distance, the confluence of Chino Creek and the Santa Ana River, site of the future Prado Dam. File number written on negative: R & H 80 026.
2. 'SANTA ANA RIVER AT CHINO CREEK, RIVERSIDE COUNTY.' This is an oblique aerial view to the north, looking over the flooded fields between Chino Creek and the Santa Ana River, just upstream of the Prado Dam site. File number written on negative: R & H 80 024.
3. DOWNSTREAM AERIAL VIEW OF THE DIVERSION CHANNEL AND CONTROL WORKS. THE OUTLET CONTROL TOWER AND THE PIER FOR THE SERVICE BRIDGE ARE SHOWN COMPLETED.... Volume XVIII, No. 11, January 18, 1940.
4. AERIAL VIEW OF DAM SITE SHOWING OUTLET WORKS AND DIVERSION CHANNEL IN FOREGROUND.... Volume XVIII, No. 9, March 5, 1940.
5. LOOKING WEST ALONG THE AXIS OF THE DAM TOWARD THE OUTLET STRUCTURE. HAND OPERATED MECHANICAL TAMPERS ARE COMPACTING THE FILL ALONG THE STEEL SHEET PILING CUTOFF WALL IN THE FOREGROUND. Volume XIX, No. 6, April 12, 1940.
6. EASTERLY AERIAL VIEW SHOWING THE RIGHT ABUTMENT AND OUTLET CONTROL WORKS IN THE FOREGROUND.... Volume XX, No. 8, September 9, 1940.
7. GENERAL PLAN AND EARTHWORK DISTRIBUTION. Sheet F-7, July, 1939. File no. SA 342/24.
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