Did you know? The oldest bridge in the NBI was built in 1697.
Did you know? The oldest bridge in the NBI was built in 1697.
Why do engineers love bridges? They're outstanding in their field.
over UP RR BNSF RY STEELHEAD
03-SAC-080-M5.21-SAC
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 136,000 vehicles per day and is 56 years old (reconstructed in 2013).
Its sufficiency rating of 70.3 is above the national average of 63.6.
The NBI records a navigation clearance of 24 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 may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 782 feet long — a moderate crossing, about 30 seconds.
A standard overpass design with solid barriers on each side.
About 24 feet above ground — moderate height, similar to a 3-5 story building.
About 136,000 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 148 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
1970
56 years old (rebuilt 2013)
Structure Type
Concrete (Continuous) Box Beam (Multiple)
Total Length
782 ft
238.4 m
Deck Width
148 ft
45.1 m
Spans
8
sections between supports
Max Span
103 ft
longest unsupported section (31.4 m)
Traffic Lanes
10 lanes
Two-way traffic
Clearance Below
24 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
136,000vehicles/day
38.64104°N, 121.47349°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.