Picture caption: September 11, 1925 Spillway, Channel and Dam and Diversion Canal. Pouring concrete on spillway. Concrete was raised up the tower and directed down chute to the section of forms that were being poured. Linn tractor with dump box in foreground and Log sluice on left of dam waiting for the water to get high enough to finish last springs log drive. The Linn was used to move the heavy machinery from the Depot in Croghan on sleighs during the winter to job site as per conversations with Leo Gerew.