Orville T. Magoon, Donald D. Treadwell, Paul S. Atwood


To create and maintain a navigable entrance for small craft between the Pacific Ocean and the natural lagoon now referred to as Bodega Harbor, the construction of two rubble-mound jetties and the associated dredging of interior channels were authorized by the United States Congress in the late 1930s. The jetties were built by the United States Army Corps of Engineers in the early 1940s. Elements of the planning, design, construction, monitoring, and maintenance of the jetties are discussed herein.


rubble-mound jetties; long-term performance; monitoring; maintenance; Bodega Bay; Bodega Harbor

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Corps of Engineers (1963), Review of Reports – Bodega Bay, California, United States Army Corps of Engineers, San Francisco District, San Francisco, California.

Corps of Engineers (1986), Comprehensive Condition Survey – North and South Jetties – Bodega Bay, Sonoma County, California, United States Army Corps of Engineers, Los Angeles District, Los Angeles, California.

Iacopi, R. (1964), Earthquake Country, Lane Book Company, Menlo Park, California, 192 pages.

Johnson, J. W. (1965), Nearshore Sediment Movement – Central California Coast, Proceedings, Coastal Engineering Specialty Conference, Waterways and Harbors Division, ASCE, Santa Barbara, California, pages 537-559.

Johnson, J. W. (1973), Characteristics and Behavior of Pacific Coast Tidal Inlets, Journal of the Waterways, Harbors and Coastal Engineering Division, ASCE, August 1973, pages 325-339.

Karp, L. B. (1975), Review of Coastal Changes at Bodega Harbor Inlet, Independent Study (CE 299) Report, Department of Civil Engineering (Prof. J. W. Johnson), University of California, Berkeley, 52 pages.

Koenig, J. B. (1963), The Geologic Setting of Bodega Head, Mineral Information Service, Division of Mines and Geology, State of California, July 1963, 10 pages.

Magoon, O. T., Sloan, R. L., and G. L. Foote (1974), Damages to Coastal Structures, Proceedings, 14th International Conference on Coastal Engineering, ASCE, Copenhagen, Denmark, pages 1655-1676.

O'Brien, M. P. (1931), "Estuary Tidal Prisms Related to Entrance Areas", Civil Engineering, ASCE, May 1931, pages 738-739.

Schulz, S. S. and R. E. Wallace (1997), The San Andreas Fault, United States Geological Survey, General Interest Publication, Menlo Park, California, 16 pages.

Treadwell, D. D., Rietman, J. D., Weaver, K. D., and G. J. Murphy, (1980), Offshore Faulting in the Gulf of the Farallones, Proceedings, 12th Offshore Technology Conference, Houston, Texas, Paper OTC 3916, pages 611-616.

Treadwell, D. D., Noble, R. M., and O. T. Magoon (2005), Tidal Inlet and Lagoon on the San Andreas Fault, Proceedings, ICS 2005, International Coastal Symposium in Iceland, Hofn, the Town of Hornafjordur, Iceland, June 2005

USGS (2001), Beyond the Golden Gate: Oceanography, Geology, Biology, and Environmental Issues in the Gulf of the Farallones, United States Geological Survey, Circular 1198, Reston, Virginia, 78 pages.

Whalin, R.W. (1994), An Overview of Rubble-Mound Breakwater Development in the United States, Proceedings, Case Histories of the Design, Construction, and Maintenance of Rubble Mound Structures, ASCE and the Coastal Zone Foundation, Eureka, California, pages 1-15.