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POTENTIAL EFFECTS OF NEU ENTRAKCE CHAHNEL ID BOLSA CHICA BAT.
CALIFORNIA, ON UNSTABILIZED ADJACENT SBORELIMBS
| 题名： | POTENTIAL EFFECTS OF NEU ENTRAKCE CHAHNEL ID BOLSA CHICA BAT. CALIFORNIA, ON UNSTABILIZED ADJACENT SBORELIMBS |
| 作者： | Lyodell Z. Hales |
| 关键词： | Bolsa Chica Bay (Calif.) (LC) Channels (Hydraulic engineering) (LC) Littoral drift—California—Simulation methods (LC) Shore lines--California (LC) |
| 摘要： | Access to the open ocean from Huntington Harbor, Galifornia is obtained by passage through Anaheim Bay which is heavily used by US Naval Weapons Station, Seal Beach. Concern has existed for many years about the possibility of accidental encounters between civilian and military craft in this area where ammunition off-loading and storage are routine practices. Local Interests have requested US Army Engineer District, Los Angeles, to investigate the practicality of the construction of a new navigation entrance channel connecting Bolsa Chica Bay with the Pacific Ocean. Functional requirements of such a new entrance channel will necessitate stabilization by the use of a parallel or arrowhead Jetty system .Otherwise, the large net downcoast drift of littoral material will rapidly close the entrance channel and preclude navigation. At the same time any jetty system will interrupt the transport of littoral material in The surf zone and deplete the downcoast(in teams of net transport) beaches of their nourishment from upcoast sources. Consequently,a sand bypassing concept must be developed to operate in concert with a weir system is required to mitigate affects of the jetties on the recreational beaches of Bolsa Chica Beach State Park. |
| 报告类型： | 科技报告 |
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