Scouts, who camped around the Washington Monument and Tidal Basin. They are located before the lock in a tidal basin. Several demonstration projects are underway to study the feasibility of the tidal basin locations. Region campsites were set up around the Washington Monument and Tidal Basin. East of the Tidal Basin, Maine Avenue SW joins westbound Independence Avenue. Outside West Potomac Park, runners get a glimpse of the Jefferson Memorial and Tidal Basin. Construction of the tidal basin began in 1964 and the whole basin covers about . Between the tidal basin and Main Dock were two dry docks. The tidal basin was closed and eventually filled in. Montrose in the north east of the county is notable for its tidal basin. The longest, Banahaw, spans the Surigao tidal basin. Directly south of the mall, the Tidal Basin features rows of Japanese cherry trees. The power plant portion of the dam is long and the tidal basin measures . The Tidal Basin which exists today was not laid out until after World War II. Tidal basin locations can also be developed using the low flow turbine technology as well.