Over 5 billion bridge crossings happen every single day in America.
Over 5 billion bridge crossings happen every single day in America.
Did you know? The oldest bridge in the NBI was built in 1697.
over SAMISH SLOUGH
0.4 W JCT FARM TO MARKET
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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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 1,026 vehicles per day and is 61 years old.
Its sufficiency rating of 62.4 places it below the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 38 feet long — a quick crossing, under 5 seconds at highway speed.
A standard bridge design.
No height data available — likely a standard overpass height.
About 1,026 vehicles cross daily — light traffic, a smooth crossing.
The deck is 29 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
1965
61 years old
Structure Type
Prestressed Concrete Channel Beam
Total Length
38 ft
11.6 m
Deck Width
29 ft
8.7 m
Spans
1
sections between supports
Max Span
36 ft
longest unsupported section (11.0 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
1,026vehicles/day
48.55496°N, 122.45097°W
Prestressed Concrete Channel Beam
A prestressed concrete stringer bridge uses pretensioned concrete beams, where steel tendons are stretched before concrete is poured. This creates stronger, lighter 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.