Haleiwa Small Boat Harbor is located on the north coast of Oahu at the head of Waialua Bay. The project was authorized under Section 107 of the River and Harbor Act of 1960, as amended. The project, which was completed in 1966, was the first joint Federal-State harbor constructed on Oahu. The total project cost was $1,177,642 (Federal: $683,177; non-Federal: $494,465).
The general navigation features consist of an entrance channel (740 feet long, 100 to 120 feet wide, 12 feet deep); a revetted mole (1,310 feet long); a stub breakwater (80 feet long); and a wave absorber (140 feet long). The local sponsor is the State of Hawaii, Department of Land and Natural Resources, Division of Boating and Ocean Recreation (DOBOR).