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 looking toward 6+7 from Boston Charles River Bridge progress on pier 4 Charles River Bridge progress on pier 2 Charles River Bridge progress on pier 10 Charles River Bridge progress on pier #4 Charles River Bridge progress on pier 8-7-6 Charles River Bridge progress on pier 7+8 Charles River Bridge progress on piers 6-7-8 Charles River Bridge looking n. form pier #4 Charles River Bridge progress on #4 Charles River Bridge progress on pier foundation #9 Charles River Bridge foundation #9 Charles River Bridge progress on foundation #9 Charles River Bridge, general view, from Boston & Maine Railroad coal shed, Boston, Mass. Charles River Bridge foundation #3 Charles River Bridge progress on #9 Charles River Bridge progress #9 Charles River Bridge fal work at #9 Charles River Bridge progress on 2+3 Charles River Bridge general view looking northerly from lock tower Charles River Bridge westerly from lock tower Charles River Bridge #3 progress on Charles River Bridge progress on foundation #8 Charles River Bridge piling for falsework between 8+9 Charles River Bridge progress on foundation 3 Charles River Bridge progress on foundation 8 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