Gathering condition ratings from coast to coast...
Gathering condition ratings from coast to coast...
Why did the truss bridge break up with the beam bridge? It needed more support.
over SINCLAIR INLET
0.4 E JCT SR 303
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 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 560 vehicles per day and is 65 years old (reconstructed in 1997).
Its sufficiency rating of 55.2 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 105 feet long — a quick crossing, under 5 seconds at highway speed.
A movable bridge — it may occasionally stop for boat traffic.
No height data available — likely a standard overpass height.
Only about 560 vehicles cross daily — very light traffic with low congestion risk.
The deck is 21 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
1961
65 years old (rebuilt 1997)
Structure Type
Steel Movable (Lift)
Total Length
105 ft
32.0 m
Deck Width
21 ft
6.5 m
Spans
1
sections between supports
Max Span
90 ft
longest unsupported section (27.4 m)
Traffic Lanes
2 lanes
One-way traffic
Daily Traffic
560vehicles/day
47.56215°N, 122.62482°W
Steel Movable (Lift)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
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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.