CN-12-200-36A Gerber Watershed - Klamath Project, Oregon-California. Looking northeast at Wildhorse Diversion Dam from downstream side of dam. Rocks, limbs, etc., have been piled on top of dam to impede the flow of water over the structure. Water was observed running under the dam through a washed-out cavity. A level shot showed that the crest of the dam was 0.3 higher than the sill of the headgate to the Wildhorse Diversion Channel. The dam, as shown, is a concrete weir. It is in extremely poor condition. Cavities have been eroded beneath the weir -- and is being underworn on the downstream side -- by streamflow action; November 19, 1968; Bureau of Reclamation photo by T.J. Rosten
