Alaska Road Commission

Cookman Collection #2

July 3, 1936

A pond of muddy river water with a couple of logs in it crosses this photo in foreground bounded by a low ridge of mud in immediate foreground and another across the middle of the image. A cat tractor with a man standing atop is at extreme right parked on the mud. In middle ground stands a shear dam structure extending across the image, composed of log pilings spaced about eight feet apart with horizontal logs and brush piled behind. Two men stand atop the dam. River water is visible between the dam and the central ridge of mud. Two additional men stand at the near edge of the water.

Matanuska Valley, Alaska

Black & White Paper Print, 3-1/2" x 5-3/4"

Erosion Control-Matanuska-Rt75L#6x-Coo