KP-1872 - Klamath Project. Lower Cost Canal Lining - N-16 Lateral. Sta. 83-00, north side of channel. Picture reveals wrinkle where asphalt did not seal. Also a crack is uncovered which had been doctored with RC-0. Crack is not completely sealed, but RC-0 is still soft and sticky, so it is too early to tell as yet; December 21, 1949; Photo by Andrew M. Bergloff