The Ka‘a‘awa Beach Shore Protection Project is located on the windward coast of the island of O’ahu and was completed in 1975. The project was authorized under Section 103 of the River and Harbor Act of 1962, as amended. The total cost of the project was $195,150 (Federal: $97,075; non-Federal: $97,075).
The project placed 9,300 cubic yards of sand on the beach as a means to provide recreational opportunities at the beach. The local sponsor is the City and County of Honolulu. Periodic nourishment by the sponsor is necessary to realize benefits claimed for the project, as well as to mitigate both the continuing loss of the park's shoreline and undermining of the adjacent highway. The highway serves as the only link to the rest of the island of Oahu.