![[South Rib, Walnut Lane Bridge]](/images/south_rib_walnut_lane_bridge_asce_434_small.jpg "South Rib, Walnut Lane Bridge")
Description: South Rib, 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 434).
Description: South Rib, 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 434).