The Golden Gate Bridge uses 80,000 miles of wire in its cables.
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
A bridge walked into a bar. The bartender said, 'Why the long span?'
over BIG MARCO PASS
7.0 MI SOUTH OF US-41
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Good overall condition rating of 7 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 19,250 vehicles per day and is 15 years old.
Its sufficiency rating of 74.7 is above the national average of 63.6.
The NBI records a navigation clearance of 55 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 1600 feet long — a moderate crossing, about 30 seconds.
A standard overpass design with solid barriers on each side.
About 55 feet above ground — an elevated crossing, similar to a 5-10 story building.
About 19,250 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 52 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
2011
15 years old
Structure Type
Prestressed Concrete Stringer/Multi-beam/Girder
Total Length
1,600 ft
487.7 m
Deck Width
52 ft
15.8 m
Spans
11
sections between supports
Max Span
147 ft
longest unsupported section (44.9 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
55 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
19,250vehicles/day
25.96365°N, 81.70988°W
Prestressed Concrete Stringer/Multi-beam/Girder
A prestressed concrete stringer bridge uses pretensioned concrete beams, where steel tendons are stretched before concrete is poured. This creates stronger, lighter 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.