Keywords: FMIB 49890 Reinforced concrete cylinders placed in open caissons, Pier 38, San Francisco 12 years exposure, excellent condition.jpeg check categories 17 September 2015 3 Reinforced concrete cylinders placed in open caissons Pier 38 San Francisco 12 years exposure excellent condition Subject Piling Civil engineering Weathering Tag Coasts 1922 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 1922 2nd Plate 7 Fig 2 San Francisco Bay Marine Piling Committee PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 49890 Images from the Freshwater and Marine Image Bank to check San Francisco Bay Marine Piling Committee Piles structural Weathering |