Virginia Tech, Extension Service2019-07-182019-07-181961-06-23http://hdl.handle.net/10919/91877Weir completed. Non-workers standing on weir.negative, 60 mm.image/jpegIn CopyrightApplied ScienceAgricultural EngineeringAgricultureVirginia Extension - Project 10WeirWater RunoffSoil and Water ConservationPhotographBiological Systems Engineering, Virginia Tech