![[Centering, Walnut Lane Bridge]](/images/centering_walnut_lane_bridge_asce_456_small.png "Centering, Walnut Lane Bridge")
Description: 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 456).
Description: 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 456).