Keywords: FMIB 49893 Bulkhead, Pier 17, San Francisco Foreground, reinforced concrete piles, 10 years exposure Background, Koetitz cylinders All in.jpeg check categories 17 September 2015 3 Bulkhead Pier 17 San Francisco Foreground reinforced concrete piles 10 years exposure Background Koetitz cylinders All in good 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 9 Fig 1 San Francisco Bay Marine Piling Committee PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 49893 Images from the Freshwater and Marine Image Bank to check San Francisco Bay Marine Piling Committee Piles structural Weathering |