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Why did the bridge go to therapy? It had too many spans of anxiety.
over SEAL SLOUGH
0.4 MI W MRNRS ISLAND BL
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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 11,290 vehicles per day and is 41 years old.
Its sufficiency rating of 62.3 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 1060 feet long — a moderate crossing, about 30 seconds.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 11,290 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 80 feet wide with multiple lanes — easy to stay in a center lane.
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
1985
41 years old
Structure Type
Prestressed Concrete (Continuous) Slab
Total Length
1,060 ft
323.1 m
Deck Width
80 ft
24.4 m
Spans
16
sections between supports
Max Span
70 ft
longest unsupported section (21.3 m)
Traffic Lanes
4 lanes
Two-way traffic
Daily Traffic
11,290vehicles/day
37.57048°N, 122.29470°W
Prestressed Concrete (Continuous) Slab
A prestressed concrete slab bridge uses a flat concrete deck that has been pretensioned for additional strength. Efficient for short to medium 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.