Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
over 2nd Level Deplane A
N. Side of Terminal OIA
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 15,001 vehicles per day and is 45 years old (reconstructed in 1990).
Its sufficiency rating of 40.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 14 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 1767 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 14 feet above ground — standard overpass height.
About 15,001 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 62 feet wide with 3-4 lanes — standard width.
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
1981
45 years old (rebuilt 1990)
Structure Type
Prestressed Concrete Tee Beam
Total Length
1,767 ft
538.6 m
Deck Width
62 ft
18.9 m
Spans
48
sections between supports
Max Span
90 ft
longest unsupported section (27.4 m)
Traffic Lanes
4 lanes
One-way traffic
Clearance Below
14 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
15,001vehicles/day
28.43209°N, 81.30760°W
Prestressed Concrete Tee Beam
A prestressed concrete tee beam bridge combines the T-shaped cross-section with prestressing technology for improved load capacity and 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.