Keywords: FMIB 49852 Douglasd fir pile driven January, 1920, pulled May, 1920, at California-Hawaiian Sugar Revinery, Crockett, California, showing 2.jpeg check categories 17 September 2015 3 Douglasd fir pile driven January 1920 pulled May 1920 at California-Hawaiian Sugar Revinery Crockett California showing 2-inch penetration by Teredo navalis in 3 1/2 months or less Breeding season therefore apparently begins not later than late in March Subject Piling Civil engineering Weathering Tag Coasts 1921 Cite book Report on the San Francisco Bay Marine Piling Survey San Francisco Bay Marine Piling Committee San Francisco CA San Francisco Bay Marine Piling Committee 1921 1st Plate 25 Fig 1 San Francisco Bay Marine Piling Committee PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 49852 Images from the Freshwater and Marine Image Bank to check San Francisco Bay Marine Piling Committee Piles structural Weathering |