![[Moving the Centering, Walnut Lane Bridge]](/images/moving_the_centering_walnut_lane_bridge_asce_440_small.jpg "Moving the Centering, Walnut Lane Bridge")
Description: Moving the Centering, Walnut Lane Bridge.
Source: George S. Webster and Henry H. Quimby, "Walnut Lane Bridge, Philadelphia" (Transactions of the American Society of Civil Engineers, December 1909, vol. LXV, page 440).
Description: Moving the Centering, Walnut Lane Bridge.
Source: George S. Webster and Henry H. Quimby, "Walnut Lane Bridge, Philadelphia" (Transactions of the American Society of Civil Engineers, December 1909, vol. LXV, page 440).