EBT alterations - placing steel beams - Chelsea St. EBT alterations - view of old sewer southerly end Chelsea St. EBT alterations - gen. view sta.97 Chelsea St. EBT alterations - placing roof beams, Chelsea St. sta. 96 EBT alterations - drills at work on exist. tun. arch. - sta. 4+50+- Lewis St. EBT alterations - northerly view - private way between Marginal and Webster Sts. EBT alterations - northerly view - cable machine - Lewis St. EBT alterations - waterproofing - sta.5 westerly side - Lewis St. EBT alterations - northerly view - cable machine - Lewis St. EBT alterations - cable machine at southwesterly corner Maverick Sq. EBT alterations - cable machine at southwesterly corner Maverick Sq. EBT alterations - southerly loop easterly side showing piles, etc. Private way between Marginal and Webster Sts. EBT alterations - Lewis St. EBT alterations - underpinning of B and A tracks - Webster St. Private way between Marginal and Webster Sts. EBT alterations - crack shed 84 - D Lewis St. exposure EBT alterations - underpinning at no.9 Lewis St. EBT alterations - view at no.9 to 13 Lewis St. EBT alterations - view at Lewis St. and Webster St. EBT alterations - 9-13 Lewis St. EBT alterations - paving at Mav. House EBT alterations - exc. at sta.5, Lewis St. EBT alterations - view at no.1 Lewis St. EBT alterations - cable mach. and crib blocking sta.4 Maverick Sq. EBT alterations - underpinning B+A tracks Webster St. EBT alterations - sheds 14 to 20 on Lewis St. cracks EBT alterations - sheds 14 to 20 on Lewis St. EBT alterations - sheds 14 to 20 on Lewis St. - cracks EBT alterations - westerly side Lewis St. sta.4 EBT alterations - westerly side Lewis St. sta.4 EBT alterations - general southerly view - Lewis St. EBT alterations - general view at 1-13 Lewis St. EBT alterations - shed 20 on Lewis St. crack EBT alterations - westerly sec. at no.5 - 13 Lewis St. EBT alterations - tile westerly side Lewis St. EBT alterations - northerly view westerly side Lewis St. station EBT alterations - Lewis St. station EBT alterations - block cribbing southwestely corner Maverick Sq. EBT alterations - Lewis St. station Bridging easterly side - Lewis St. station Alterations - Lewis St. station EBT alterations - westerly side - Lewis St. northerly view from sta.6 EBT alterations - northerly view; Lewis St. EBT alterations - Westerly side - Lewis St. EBT alterations - northerly view from sta.4 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