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A bridge's favorite type of music? Heavy metal. Or suspension... it depends.
over AMERICAN RIVER
0.5 MI N OF S.R. 50
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 75,000 vehicles per day and is 60 years old (reconstructed in 2011).
Its sufficiency rating of 63.6 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 566 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 75,000 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 113 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
1966
60 years old (rebuilt 2011)
Structure Type
Concrete (Continuous) Box Beam (Multiple)
Total Length
566 ft
172.4 m
Deck Width
113 ft
34.5 m
Spans
4
sections between supports
Max Span
156 ft
longest unsupported section (47.7 m)
Traffic Lanes
6 lanes
Two-way traffic
Daily Traffic
75,000vehicles/day
38.63531°N, 121.22423°W
Concrete (Continuous) Box Beam (Multiple)
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.