Bridges: the original social network. Connecting communities since 850 BC.
Bridges: the original social network. Connecting communities since 850 BC.
Fun fact: The average American crosses 4 bridges a day without even noticing.
over CHALONE CREEK
CA STATE ROUTE 25 TO CA S
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 75 vehicles per day and is 27 years old.
Its sufficiency rating of 60.4 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 121 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
Only about 75 vehicles cross daily — very light traffic with low congestion risk.
The deck is 32 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
1999
27 years old
Structure Type
Concrete (Continuous) Box Beam (Single/Spread)
Total Length
121 ft
37.0 m
Deck Width
32 ft
9.9 m
Spans
2
sections between supports
Max Span
58 ft
longest unsupported section (17.7 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
75vehicles/day
36.48697°N, 121.16954°W
Concrete (Continuous) Box Beam (Single)
A concrete box beam bridge uses hollow rectangular concrete sections. The box shape provides excellent torsional resistance and allows for longer 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.