Lewis and Clark River Bridge

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Lewis and Clark River Bridge
Lewis and Clark Bridge Astoria OR HABS1.jpg
Coordinates 46°09′08″N 123°51′34″W / 46.15229°N 123.85937°W / 46.15229; -123.85937Coordinates: 46°09′08″N 123°51′34″W / 46.15229°N 123.85937°W / 46.15229; -123.85937
US 101 Bus.
Crosses Lewis and Clark River
Locale near Astoria, Oregon
Maintained by Oregon DOT
Design Single-leaf bascule
Total length 828 feet (252 m)
Longest span 112 feet (34 m)
Opened 1925

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 McCullough[1] and opened in 1925.[2] It was built to replace an earlier bridge at the same location,[3] a swing-span bridge constructed around 1910.

The total length of the bridge is 828 feet (252 m), and the length of the bascule main span is 112 ft (34 m). The approach spans consist of a total of 48 timber pile and stringer spans.[4]


  1. ^ Hadlow (2001).
  2. ^ "New Span to Be Opened" (March 7, 1925). The Morning Oregonian (Portland), p. 1.
  3. ^ "About $11,000,000 Spent on Highways" (and section heading: "Bridges Are Built"). (December 9, 1923). The Sunday Oregonian, p. 13.
  4. ^ Hadlow (2001), p. 141.


  • Hadlow, Robert W. (2001). Elegant Arches, Soaring Spans: C.B. McCullough, Oregon's Master Bridge Builder. Oregon State University Press. ISBN 0-87071-534-8.

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