Lewis and Clark River Bridge

{{Use American English|date=January 2025}}

{{Use mdy dates|date=January 2025}}

{{Infobox Bridge

|name=Lewis and Clark River Bridge

|image=Lewis and Clark Bridge Astoria OR HABS1.jpg

|carries={{Jct|state=OR|US-Bus|101}}

|crosses=Lewis and Clark River

|locale=near Astoria, Oregon

|maint=Oregon DOT

|design=Single-leaf bascule

|mainspan={{Convert|112|ft|m}}

|length={{Convert|828|ft|m}}

|open=1925

|coordinates={{Coord|46.15229|-123.85937|type:landmark_region:US-OR|display=inline,title}}

}}

The Lewis and Clark River Bridge is a bascule bridge that spans the Lewis and Clark River on U.S. Route 101 Business (a section originally part of U.S. Route 101) in Clatsop County, Oregon. It was designed by Conde McCulloughHadlow (2001). and opened in 1925."New Span to Be Opened" (March 7, 1925). The Morning Oregonian (Portland), p. 1. It was built to replace an earlier bridge at the same location,"About $11,000,000 Spent on Highways" (and section heading: "Bridges Are Built"). (December 9, 1923). The Sunday Oregonian, p. 13. a swing-span bridge constructed around 1910.

The total length of the bridge is {{convert|828|ft|m}}, and the length of the bascule main span is {{convert|112|ft|m|abbr=on}}. The approach spans consist of a total of 48 timber pile and stringer spans.Hadlow (2001), p. 141.