Connecting the data points... literally.
Connecting the data points... literally.
A bridge's favorite type of music? Heavy metal. Or suspension... it depends.
over THOMSEN SLOUGH
8.0 E JCT SR 532
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 4,051 vehicles per day and is 107 years old (reconstructed in 2003).
Its sufficiency rating of 63.5 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 40 feet long — a quick crossing, under 5 seconds at highway speed.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 4,051 vehicles cross daily — light traffic, a smooth crossing.
The deck is 31 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
1919
107 years old (rebuilt 2003)
Structure Type
Concrete Arch (Deck)
Total Length
40 ft
12.2 m
Deck Width
31 ft
9.4 m
Spans
1
sections between supports
Max Span
40 ft
longest unsupported section (12.2 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
4,051vehicles/day
48.19093°N, 122.23117°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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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.