Naval Base Philadelphia-Philadelphia Naval Shipyard, Foundry-Propeller Shop, North of Porter Avenue, west of Third Street West, Philadelphia, Philadelphia County, PA

Significance: Built as part of the Navy's vast expansion to meet the projected needs of WWI, Building 20 became the U.S. Navy's sole production facility for propellers. During WWII the facility produced over 5,500 propellers of various sizes and today continues to provide propellers and precision castings for the Navy's nuclear fleet.

Survey number: HAER PA-387-O

maritime philadelphia philadelphia shipyard naval base philadelphia philadelphia naval shipyard foundry propeller shop foundry propeller shop porter porter avenue third street west philadelphia philadelphia county pennsylvania philadelphia naval shipyard images of philadelphia historic american engineering record photo ultra high resolution high resolution first world war ww 1 naval base library of congress industrial history

1969 - 1980

Library of Congress

http://www.loc.gov/

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