Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
What did one bridge say to the other? 'You're looking a bit stressed.'
over WALNUT CREEK
4.3 MI SW OF SILVR CK INT
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 12,354 vehicles per day and is 70 years old (reconstructed in 2015).
Its sufficiency rating of 70.7 is above 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 256 feet long — a short crossing, about 10-15 seconds.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 12,354 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 56 feet wide with 3-4 lanes — standard 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
1956
70 years old (rebuilt 2015)
Structure Type
Concrete (Continuous) Arch (Deck)
Total Length
256 ft
78.0 m
Deck Width
56 ft
17.2 m
Spans
1
sections between supports
Max Span
136 ft
longest unsupported section (41.5 m)
Traffic Lanes
2 lanes
One-way traffic
Daily Traffic
12,354vehicles/day
42.51268°N, 79.17244°W
Concrete (Continuous) 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.