Almost there! Just bridging the gap...
Almost there! Just bridging the gap...
Why did the truss bridge break up with the beam bridge? It needed more support.
over Willamette River
SCL HARRISBURG
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This bridge has a Fair overall condition rating of 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 10,393 vehicles per day and is 101 years old (reconstructed in 1976).
Its sufficiency rating of 53.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 20 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 2146 feet long — a longer crossing, over 1 minute.
A truss bridge — the steel framework can provide a sense of enclosure.
About 20 feet above ground — moderate height, similar to a 3-5 story building.
About 10,393 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 24 feet wide with 1-2 lanes — a narrower crossing.
This bridge crosses over water. Focus on the road ahead — the water is far below.
This comfort score is designed to help individuals with bridge anxiety plan their travel. All bridges in the National Bridge Inventory are regularly inspected and deemed safe for travel. This is not medical advice — if you experience severe anxiety, please consult a healthcare professional.
Year Built
1925
101 years old (rebuilt 1976)
Structure Type
Steel Truss (Thru)
Total Length
2,146 ft
654.0 m
Deck Width
24 ft
7.2 m
Spans
3
sections between supports
Max Span
180 ft
longest unsupported section (54.9 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
20 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
10,393vehicles/day
44.26710°N, 123.17522°W
Steel Truss (Thru)
A steel truss bridge uses a framework of interconnected triangular elements. The geometric rigidity of triangles makes this design extremely efficient at distributing loads.
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Data from the National Bridge Inventory (NBI), maintained by the Federal Highway Administration (FHWA).
Data year: 2025. Conditions may have changed since the last inspection.
This information is provided for educational and informational purposes only. It should not be used as the sole basis for any decisions related to bridge safety or transportation planning. Always consult official sources and local authorities for the most current data.