National Register of Historic Places

Siuslaw River Bridge No. 01821

Florence, Lane County, Oregon
Listed
August 4, 2005
Type
Structure
Period
Civil War
Ref No.
05000816

About this property

The Siuslaw River Bridge is a bascule bridge that spans the Siuslaw River on U.S. Route 101 in Florence, Oregon. It was designed by Conde McCullough, built by the Mercer-Fraser Company of Eureka, California, and funded by the Federal Emergency Administration of Public Works (later renamed the Public Works Administration). It opened in 1936. The bridge's total length is 1,568 feet (478 m). When open, the 140-foot (43 m) double-leaf bascule provides 110 feet (34 m) of horizontal clearance for boat traffic. The bascule section is flanked by two 154-foot (47 m) reinforced concrete tied arches, identical to those used in the original Alsea Bay Bridge. Four Art Deco-style obelisks house mechanical equipment as well as living quarters for the bridge operator. The total cost of the bridge was $527,000 (equivalent to $12.4 million in 2025). The bridge was added to the National Register of Historic Places on August 5, 2005. A new computerized control mechanism for the drawbridge was installed in 2011. It does not require an operator to be present at both the north and south portions to raise the drawbridge like the manual controls do. However, the manual system is still in working order.

Location

Florence, Lane County, Oregon
43.96441, -124.10867

Categories

ENGINEERINGTRANSPORTATION
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Questions about this property

When was Siuslaw River Bridge No. 01821 listed on the National Register?

Siuslaw River Bridge No. 01821 was listed on the National Register of Historic Places on August 4, 2005.

What type of historic resource is Siuslaw River Bridge No. 01821?

Siuslaw River Bridge No. 01821 is classified as a structure in the National Register of Historic Places.

What is the period of significance for Siuslaw River Bridge No. 01821?

The period of significance for Siuslaw River Bridge No. 01821 is recorded as the civil_war era.

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