Loading structural data... this is riveting stuff.
Loading structural data... this is riveting stuff.
What did one bridge say to the other? 'You're looking a bit stressed.'
over WALNUT CREEK
04-CC-680-R18.70-CND
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Poor overall condition rating of 4 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 63,800 vehicles per day and is 63 years old (reconstructed in 1998).
Its sufficiency rating of 59.3 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 613 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 63,800 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 54 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
1963
63 years old (rebuilt 1998)
Structure Type
Concrete (Continuous) Box Beam (Multiple)
Total Length
613 ft
186.8 m
Deck Width
54 ft
16.6 m
Spans
7
sections between supports
Max Span
90 ft
longest unsupported section (27.4 m)
Traffic Lanes
3 lanes
One-way traffic
Daily Traffic
63,800vehicles/day
37.95868°N, 122.05186°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.