Connecting the data points... literally.
Connecting the data points... literally.
If I had a dime for every bridge I've crossed, I'd have about ten bucks by now.
over UP RR BNSF RY AMTRAK ETC
04-ALA-580-46.50R-OAK
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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 73,800 vehicles per day and is 91 years old (reconstructed in 1999).
Its sufficiency rating of 56.2 places it below the national average of 63.6.
The NBI records a navigation clearance of 15 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 3688 feet long — an extended crossing, several minutes.
A standard overpass design with solid barriers on each side.
About 15 feet above ground — standard overpass height.
About 73,800 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 33 feet wide with 1-2 lanes — a narrower crossing.
This bridge crosses over land, not water — no water views 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
1935
91 years old (rebuilt 1999)
Structure Type
Steel Stringer/Multi-beam/Girder
Total Length
3,688 ft
1124.1 m
Deck Width
33 ft
10.0 m
Spans
51
sections between supports
Max Span
126 ft
longest unsupported section (38.4 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
15 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
73,800vehicles/day
37.82733°N, 122.28456°W
Steel Stringer/Multi-beam/Girder
A steel stringer bridge uses parallel steel beams (stringers) to support the deck. This is one of the most common bridge types in the US, valued for its simplicity and strength.
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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.