FIGURE IV.5.12 



254 



WATER MOVEMENT NEAR A PIER BRIDGE, 

 GREAT SOUTH BAY, LONG ISLAND, N.Y. 



TOP: DYE MOVEMENT THROUGH THE BAY BRIDGE ON 



A WINDLESS EBB TIDE. GREATEST WATER DEPTH 

 NEAR THE BRIDGE WAS 9 FEET. 



BOTTOM: RECENT PHOTOGRAPH OF BAY BRIDGE. NOTE 



THAT DYE MOVEMENT WAS DIRECTLY TOWARD 

 THE OPEN PART OF THE BRIDGE. (SECOND BRIDGE 

 WAS BUILT AFTER THE 1961 DYE STUDY). 



