Why do engineers love bridges? They're outstanding in their field.
Why do engineers love bridges? They're outstanding in their field.
Why did the truss bridge break up with the beam bridge? It needed more support.
over WIHLAMETTE SLOUGH
2.7KM W LUCKY EAGLE CASIN
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Good overall condition rating of 7 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 500 vehicles per day and is 54 years old.
Its sufficiency rating of 71.3 is above the national average of 63.6.
For travelers with bridge anxiety
This bridge is likely to be a comfortable crossing for most travelers.
This bridge is 160 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
Only about 500 vehicles cross daily — very light traffic with low congestion risk.
The deck is 33 feet wide with 2-3 lanes — moderate 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
1972
54 years old
Structure Type
Concrete (Continuous) Box Beam (Single/Spread)
Total Length
160 ft
48.7 m
Deck Width
33 ft
10.1 m
Spans
3
sections between supports
Max Span
109 ft
longest unsupported section (33.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
500vehicles/day
46.81590°N, 123.18960°W
Concrete (Continuous) Box Beam (Single)
A concrete box beam bridge uses hollow rectangular concrete sections. The box shape provides excellent torsional resistance and allows for longer spans.
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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.