P12-201-4430 NA Klamath Project, OR-CA. Ady Canal, Hwy 97, and SPRR Siphon-- Contractor forces repairing bedding for Hwy 97 which is sloughed out when shoring on the east side of the hwy shifted. This occurred as the tunnel shield approached the cribbing; August 17, 1977; USBR photo by D.J. Kline