The robert e. Lee bridge in richmond, virginia, consists of twintrapezoidal concrete box structures 3, 400 ft long and consisting ofconstant-width and varying-width cross sections placed with form travelers. This bridge represents two firsts in North America: (a) the largest number of form travelers (eight) ever used concurrently, and (b) the first use of a strand stability system in segmental concrete balanced cantilever construction. The use of portable fabric cofferdams was a unique method for constructing the bridge piers in the james river. These fabric cofferdams provided a safe, environmentally sound structure within which to drill and blast rock excavation and to place concrete for the pier footing and the first lift of the pier columns in the river. This paper appears in transportation research record no. 1282, Transportation construction 1990.
Abstract