![[East Approach Spans, Walnut Lane Bridge]](/images/east_approach_spans_walnut_lane_bridge_asce_460_small.jpg "East Approach Spans, Walnut Lane Bridge")
Description: East Approach Spans, 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 460).
Description: East Approach Spans, 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 460).