Virginia Tech, Extension Service2019-07-182019-07-181959-06-15http://hdl.handle.net/10919/91864construction of low flow control and steps. (note on photo: "Mr. Lillard, found this picture you had lent me ages ago thought you might want it back. -Diane Hand News Bureau)negative, 4x5 in.image/jpegIn CopyrightApplied ScienceAgricultural EngineeringAgricultureVirginia Extension - Project 10WeirWater RunoffSoil and Water ConservationPhotographBiological Systems Engineering, Virginia Tech