Burnside Bridge, Portland, OR

Burnside Bridge in Portland, OR, is a 1926-built bascule bridge spanning the Willamette River and carrying Burnside Street. It is the second bridge at this site to use the Burnside Bridge name, and it was added to the National Register of Historic Places in November 2012.

The bridge is more than a fixed road crossing: its double-leaf bascule span was designed to keep Portland’s streets connected while allowing ships and industrial river traffic to continue navigating the Willamette.

What is Burnside Bridge in Portland, OR?

Burnside Bridge is a bridge across the Willamette River that carries Burnside Street between Portland’s west and east sides. The current structure opened in 1926 and replaced an earlier bridge at the same site that also carried the Burnside Bridge name.

Its historic designation reflects the importance of the structure to Portland’s transportation history. The bridge joined the city’s downtown and west side with the residential and industrial districts developing east of the river, while its movable span preserved access for maritime shipping below.

Why was Burnside Bridge built?

Portland built Burnside Bridge to improve transportation across the Willamette River as the city expanded during the late nineteenth and early twentieth centuries. An earlier wooden bridge opened in 1894, but increasing traffic and commercial growth created the need for a larger, more durable structure.

The current bridge was designed by engineer Gustav Lindenthal and opened in 1926. Its construction formed part of Portland’s broader effort to modernize transportation infrastructure as more workers, freight, streetcars, automobiles, and commercial goods moved through the city.

How does Burnside Bridge cross the Willamette River?

Burnside Bridge crosses the river with a double-leaf bascule span, a movable design that supports both road transportation and river navigation. When the span operates for shipping, the bridge’s design allows ships and industrial river traffic to continue along the Willamette rather than making the crossing a permanent obstruction.

That combination explains the bridge’s role in Portland: it connected downtown and the west side with growing districts east of the river while supporting the movement of workers, freight, streetcars, automobiles, and commercial goods. The bridge is included as stop 2 of 8 on the Portland: River Trade, Lumber and Vice Tour, which explores the river’s relationship with the city’s growth.