Fetching data from the National Bridge Inventory...
Fetching data from the National Bridge Inventory...
Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
over WILLAMETTE RIVER
0.4 MI NE PORTLAND CC
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Poor overall condition rating of 4 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 11,732 vehicles per day and is 116 years old.
Its sufficiency rating of 50.2 places it below the national average of 63.6.
The NBI records a navigation clearance of 160 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 785 feet long — a moderate crossing, about 30 seconds.
A truss bridge — the steel framework can provide a sense of enclosure.
About 160 feet above ground — a high bridge with significant elevation.
About 11,732 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 64 feet wide with 3-4 lanes — standard width.
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
1910
116 years old
Structure Type
Steel Truss (Thru)
Total Length
785 ft
239.3 m
Deck Width
64 ft
19.5 m
Spans
1
sections between supports
Max Span
288 ft
longest unsupported section (87.8 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
160 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
11,732vehicles/day
45.52762°N, 122.66907°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.