The South Bay Ocean Outfall

by Frank X. Collins,
Gregory W. McBain,
Jon Y. Kaneshiro,
Luciano Meiorin,
Larry Stout,

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


For more than 60 years, raw sewage has flowed down the hills of Tijuana, Mexico into the Tijuana River, crossing the U.S.-Mexican border. The sewage contaminates the low-lying river valley in San Diego and then flows into the Pacific Ocean, creating a health hazard for beaches at Border Field State Park, Silver Strand Beach in Coronado, and Imperial Beach. To alleviate these problems, the South Bay Ocean Outfall (SBOO) will convey effluent down a 8.5 m diameter by 58 m deep drop shaft, through a 3.35 m diameter by 5.8 km long tunnel, and up a 2.7 m diameter by 46 m long riser shaft connecting to a 3.05 m diameter by 1.5 km long seafloor pipeline and 1.2 km long difffisers on the ocean floor.

Subject Headings: Ocean engineering | Bays | Public health and safety | Sewage | Water pollution | Beaches | Developing countries | Health hazards | Mexico | California | United States | Pacific Ocean

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