Charles River Bridge progress on #3 Charles River Bridge, general view, looking toward Cambridge from lock tower, Boston, Mass. Charles River Bridge foundation 10+11 Charles River Bridge foundation #3 Charles River Bridge foundation #3 Charles River Bridge foundation #3 Charles River Bridge progress on foundation 3 Charles River Bridge progress on foundation 3 Charles River Bridge foundation 3 Charles River Bridge foundation 3 Charles River Bridge foundation 3 Charles River Bridge foundation 3 n. side Charles River Bridge progress on 5 Charles River Bridge laying stone of foundation #3 Charles River Bridge progress on foundation 5 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