Charles River Bridge boulder concrete dovetailing, etc. foundation #3 Charles River Bridge overflow conduit in foundation #3 Charles River Bridge overflow condition in foundation #3 Charles River Bridge progress on foundation #3 Charles River Bridge progress on #5 Charles River Bridge progress on foundation #3 Charles River Bridge progress on foundation #5 Charles River Bridge progress on #3 Charles River Bridge progress on foundation 5 32 Lowell St. Charles River Bridge Foundation 3 Charles River Bridge progress on foundation #5 Charles River Bridge looking toward Boston from near pier #8 Charles River Bridge foundation #3 Charles River Bridge foundation #3 Charles River Bridge progress on pier 5 Charles River Bridge progress on pier 5 Charles River Bridge general view Charles River Bridge piers 9-10-11 Charles River Bridge wall between pier 8 and 9 Charles River Bridge looking toward Boston from 09 Charles River Bridge from Cambridge end Charles River Bridge Charles River Bridge looking from Boston end Charles River Bridge pier 4+5 etc. Charles River Bridge pier 2 Charles River Bridge progress view Charles River looking towards Boston Charles River Bridge pier 7-6-5-4 Charles River Bridge piers 9-10-11 Charles River Bridge s. side of pier #7 Charles River Bridge s. side of pier #6 Charles River Bridge s. side of pier #6 Charles River Bridge excavation foundation #11 Charles River Bridge foundation 8 Charles River Bridge #7 + #8 Charles River Bridge progress on foundation 4 Charles River Bridge progress on foundation 4 Charles River Bridge progress on foundation 6+7 looking toward Cambridge Charles River Bridge foundation 6+7 Charles River Bridge foundation 8 Charles River Bridge Bridge in lock, Charles River Dam Charles River Bridge foundation #2 Charles River Bridge pier #4 Charles River Bridge progress on #2 Charles River Bridge progress on #10 Charles River Bridge progress on #2 + #3 Charles River Bridge progress on #5 + #6 Charles River Bridge progress on #7