[Sweeping Party on the Cumberland River, Without Caption]

This is a photograph of a sweeping party in operation on the Lower East River. Personnell on pontoons include the Chief of Party, directing operations, leadsmen sounding, located at the center line of each pontoon, leadsmen operating sweep bars (one on each pontoon), a recorder operating an electrical recording device, and a deckhand operationg an outboard motor. On shore three transitmen are locating positions. This operation occurred sometime between 1889 and 1934.