Perfectly treated pile attacked by Xylotrya which entered through the small knot (about 1/2 inch in diameter). 1922. Piling (Civil engineering); Weathering.
Freshwater and Marine Image Bank, University of Washington Libraries Digital Collections
Publisher:
Freshwater and Marine Image Bank, University of Washington Libraries Digital Collections
San Francisco Bay Marine Piling Committee. 1922. Report on the San Francisco Bay Marine Piling Survey. San Francisco, CA : San Francisco Bay Marine Piling Committee; 2nd, Plate 7 Fig.1
