EBT alterations - westerly side - Lewis St. station EBT alterations - westerly side - Lewis St. EBT alterations - northeasterly side - Lewis St. station EBT alterations - westerly side Lewis St. sta.5 EBT alterations - general southerly view Lewis St. from sta.6 EBT alterations - westerly side Lewis St. - sta.5 Northerly view Lewis St. from sta. 10+50 EBT alterations - sta.9+00 Lewis St. EBT alterations - southerly view toward Maverick Sq. EBT alterations - northerly view westerly side - Chelsea St. from Maverick Sq. EBT alterations - eng. unloaded by cable mach. Lewis St. new + old roof construction northerly view from sta.6+00 EBT Alterations - gen. northerly view Chelsea St. from Sta.97 EBT Alterations - easterly side Lewis St. EBT Alterations - unloading engine by cable EBT Alterations - cracks - shed 14 to 20 on Lewis St. EBT Alterations - westerly side - Lewis St. sta. EBT Alterations - cracks sheds 14 to 20 on Lewis St. EBT Alterations - junct. Summer and Lewis Sts. EBT Alterations - paving westerly side - Maverick Sq. Sta.9+00 air ducts Sta.5 roof beams EBT alterations - sta.5 westerly side Lewis St. EBT alterations - general northerly view - Lewis St. from Marginal St. EBT alterations - sta.9 Lewis St. construction EBT alterations - sta.5 Lewis St. roof EBT alterations - support shed 84-D EBT alterations - underpinning - sheds 19-22 EBT alterations - Lewis St. sta.5 EBT alterations - Lewis St. sta.8 EBT alterations - Lewis St. EBT alterations - Lewis St., removing air chambers EBT alterations - general northerly view of Lewis St. from shed 19 EBT alterations - sheds no.19 to 22 Lewis St. EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - Lewis St. sta.8 EBT alterations - sta. 8 + 40 + existing tunnel westerly side of Lewis St. EBT alterations - Mayor's Day EBT alterations - Mayor's Day Street construction with a sign for tents and awnings in the background Building over stairway at westerly end of sec.C, EBT ... and bracing near sta.6+80 EBT looking southerly Looking northerly on sec.A, EBT from Webster St. bridge Concrete Beams Special concrete beams Special concrete beams Chemical analyses of cement used on EBT EBT alterations - removing trolley pole at Summer and Lewis Sts.