Charles River Bridge concrete forms Prison Point St. Charles River Bridge forms etc. Prison Point St. entrance Charles River Bridge suspended I beams etc. Charles River Bridge, balustrade forms, etc. Charles River Bridge, spandrel forms Charles River Bridge jack auch forms taken down Charles River Bridge top of conduit box baustrade rods, etc. Charles River Bridge, rods, logging, etc, pier #8 Charles River Bridge, pier #10 Charles River Bridge top of pier #8 rods and forms Charles River Bridge progress view Charles River Bridge pouring floor etc. Charles River Bridge Charles River Bridge Charles River Bridge Prison Point St. span Charles River Bridge e. side Charles River Bridge south from Prison Point Street, Cambridge, Mass. Charles River Bridge n. from Prison Pt. St. Charles River Bridge Charles River Bridge casting house Charles River Bridge casting trolley poles E. Cambridge bridge near Lechemere Sq. E. Cambridge near Lechemere Sq. between Lechmere Sq. between Cambridge and Bridge Sts. E. Cambridge near Lechemere Sq. between Cambridge and Bridge Sts. E. Cambridge near Lechemere Sq. between Cambridge and Bridge Sts. South side of Causeway, west side of Canal Street, Boston, Mass. Charles River Bridge Foundation 4 South side of Causeway Street, Boston, Mass. South side of Causeway Street, west side of Friend Street, Boston, Mass. South side of Causeway Street, east corner Portland Street, Boston, Mass. Welding of concrete Charles river dam Cambridge side Charles River Bridge, Boston end, cutting out concrete Charles River Bridge, pier excavated to grade Charles River Bridge Charles River Bridge Charles River Bridge cutting out concrete Boston side looking s. Charles River Bridge, looking s. opposite Main lock Charles River Bridge, looking s. opposite Main lock Charles River Bridge, excav. for Pier 19 Charles River Bridge, looking s. opposite small boat lock Charles River Bridge, progress on Pier 4 Charles River Bridge, progress on Pier 4 Charles River Bridge, progress on Pier 10 Charles River Bridge Charles River Bridge looking n. from s. for Pier 4 Charles River Dam Charles River Bridge progress on foundation #10 Charles River Bridge progress on foundation #9 Charles River Bridge progress on foundation #9+10 Charles River Bridge progress on Pier #9