SF Bay Hetch Hetchy aqueduct (0443)

Hetch Hetchy Dumbarton pipe line bridge, just north of the rail bridge. East of here the Hetch Hetchy aqueduct splits into four lines and two of those go under the bay and then surface at this point, carrying water to San Francisco and nearby communities. I could not find when the bridge was built, but water through the Hetch Hetchy Dumbarton pipe line bridge was first delivered to SF in 1934. The completion of the Hetch Hetchy aqueduct was financed through the New Deal Public Works Administration Sources: www.tchistory.org/tchistory/Wonders_10.htm , livingnewdeal.berkeley.edu/projects/hetch-hetchy-water-system-ca