tests were made in only sand so that a standard was obtained to compare dredging in simulated roots to standard dredging in sand without simulated roots. A summary of the dredging tests are tabulated in Table 1. 149.5ft 40.8ft . 12ft 14ft 10ft 11ft 5ft Tow Tank s Collection Tank Sediment Pit Dredge Carriage Max Water Level Diffuser N E W