Bolsa Bay, California, Proposed Ocean Entrance System Study. Report 4. Physical Model
Abstract
A 1:75-scale (undistorted) hydraulic model of a proposed ocean entrance at Bolsa Bay, California, was used to investigate wave conditions in the entrance and interior basins of the proposed marina and sediment patterns along the coast as a result of the proposed jetties and breakwater. The model reproduced approximately 8,000 ft of the California shoreline, the proposed interior basins of the marina complex, a portion of the Wintersburg Flood- Control Channel, and sufficient offshore bathymetry in the Pacific Ocean to permit generation of the required test waves. An 80-ft-long unidirectional, spectral wave generator, an automated data acquisition system, a circulation system to generate steady-state flood and ebb tidal flows, and a crushed coal tracer material were utilized in model operation. It was concluded from test results that the originally proposed improvement plan with the navigable ocean entrance and connector channel to proposed improvement plan with the navigable ocean entrance and connector channel to Huntington Harbor will not meet the established wave height criteria in the interior basins unless revetments along the interior channels and a 300-ft-long spur across the opening of the northwest basin are installed, in conjunction with raising the crest elevation of a 900- ft-long portion of the offshore breakwater from +18 to +22 ft. The lengths of the north and south wings of the offshore breakwater were adequate to prevent the movement of sediment into the entrances of the marina. It was also determined that discharges from Wintersburg Channel should have minimal impacts in the interior channels and basins of the marina complex.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1989
- Accession Number
- ADA216314
Entities
People
- Hugh F. Acuff
- Robert R. Bottin Jr.
Organizations
- Coastal Engineering Research Center