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Did you know? The oldest bridge in the NBI was built in 1697.
over SACRAMENTO RIVER SR 84
04-SOL-012-26.24-RVS
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 20,100 vehicles per day and is 82 years old (reconstructed in 1960).
Its sufficiency rating of 54.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 142 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 features that may be difficult for travelers with bridge anxiety. Planning ahead and using the tips below can help.
This bridge is 2890 feet long — a longer crossing, over 1 minute.
A movable bridge — it may occasionally stop for boat traffic.
About 142 feet above ground — a high bridge with significant elevation.
About 20,100 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 29 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
1944
82 years old (rebuilt 1960)
Structure Type
Steel Movable (Lift)
Total Length
2,890 ft
880.9 m
Deck Width
29 ft
8.9 m
Spans
16
sections between supports
Max Span
306 ft
longest unsupported section (93.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
142 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
20,100vehicles/day
38.16015°N, 121.68655°W
Steel Movable (Lift)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
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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.