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32 hn AS CR f NUE hoe ee N I is Construction Views Lock and Dam No. 2 pare Bathe a Pe: bt I.--GENERAL VIEW OF LOCK FOUNDATION WITH PART FOUNDATION FOR MIDDLE WALLS AND LAND WALLS IN PLACE. 2.--DAM FOUNDATION SHOWING PILES CUT OFF AND FOUNDATION PRACTICALLY READY FOR THE PLACING OF .CONCRETE. COFFERDAM AS PART OF PERMANENT CONSTRUCTION. 3.--ABUTMENT AND DAM DEPOSITORY, CONCRETE ABOUT PILES, IN FOUNDATION. 4.--SHOWS COMPLETED ABUTMENT AND FOUNDATION OF DAM CARRIED TO ELEY. (708). 5.--COFFERDAM ENCLOSURE FOR LOCK PUMPED DOWN-READY TO DRIVE PILES BY "SCOW DRIVERS." 6.--SHOWING FORMS AND COMPLETED SECTIONS OF MIDDLE AND RIVER WALLS. ALSO SHOWS