Loading structural data... this is riveting stuff.
Loading structural data... this is riveting stuff.
A bridge's favorite type of music? Heavy metal. Or suspension... it depends.
over ISLAIS CREEK
JUST N/O CARGO WAY
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
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 50,000 vehicles per day and is 81 years old.
Its sufficiency rating of 59.2 places it below the national average of 63.6.
The NBI records a navigation clearance of 3 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 161 feet long — a quick crossing, under 5 seconds at highway speed.
A movable bridge — it may occasionally stop for boat traffic.
About 3 feet above ground — standard overpass height.
About 50,000 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 80 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
1945
81 years old
Structure Type
Steel Movable (Bascule)
Total Length
161 ft
49.0 m
Deck Width
80 ft
24.4 m
Spans
1
sections between supports
Max Span
105 ft
longest unsupported section (32.0 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
3 ft
navigation clearance under deck
Daily Traffic
50,000vehicles/day
37.74709°N, 122.38709°W
Steel Movable (Bascule)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track California to receive alerts when new inspection data is published. Premium members get bridge-specific notifications.
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.