Charles River Bridge progress on foundation 8 Charles River Bridge progress on foundation 8+9 Charles River Bridge progress on foundation 7+6 Charles River Bridge progress on foundation #8 Charles River Bridge progress on foundations 7+6 Charles River Bridge progress on foundations 4 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 Charles River Bridge progress on #6 Charles River Bridge progress on #7 Charles River Bridge Charles River Bridge progress on pier 4 Charles River Bridge progress on pier #2 Charles River Bridge progress on pier #8 + #7 Charles River Bridge progress on pier #10 Charles River Bridge progress on pier #6 Charles River Bridge progress on pier #4 Charles River Bridge progress on Pier #9 Charles River Bridge progress on Pier #4 Charles River Bridge progress on Pier #4 Charles River Bridge progress on Pier #4 Charles River Bridge near Pier #3 Charles River Bridge progress on pier foundation Charles River Bridge progress on pier foundation #10 Charles River Bridge foundation Pier #4 looking s. Charles River Bridge foundation Pier #4 excavation to grade pile heads Looking northerly from near pier #4 Looking southerly form near pier #4 Pier #3 Pier #3 Charles River Bridge excavation for Pier 10 Charles River Bridge excavation for Pier 10 Charles River Bridge looking down into #10 Excavation for pier #9 Charles river Bridge Charles River Bridge foundation Pier #3 Charles River Bridge looking southerly Pier 4