Connecting the data points... literally.
Connecting the data points... literally.
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
over ACCESS RD GRIZZLY CREEK
GRZLY CRK-RST GLNWD CNYN
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 8,500 vehicles per day and is 40 years old.
Its sufficiency rating of 70.0 is above the national average of 63.6.
The NBI records a navigation clearance of 27 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 428 feet long — a short crossing, about 10-15 seconds.
A standard bridge design.
About 27 feet above ground — moderate height, similar to a 3-5 story building.
About 8,500 vehicles cross daily — light traffic, a smooth crossing.
The deck is 37 feet wide with 2-3 lanes — moderate 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
1986
40 years old
Structure Type
Prestressed Concrete (Continuous) Segmental Box Girder
Total Length
428 ft
130.5 m
Deck Width
37 ft
11.4 m
Spans
4
sections between supports
Max Span
123 ft
longest unsupported section (37.4 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
27 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
8,500vehicles/day
39.56121°N, 107.25129°W
Prestressed Concrete (Continuous) Segmental Box Girder
A prestressed concrete box beam bridge combines hollow box sections with prestressing technology, enabling longer spans with reduced weight and material usage.
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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.