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.
The average US bridge is 48 years old. That's a lot of birthday candles.
over BACK RIVER (TIDAL PASS)
1.7 MI E TOWNLINE
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 8 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 1,660 vehicles per day and is 15 years old.
Its sufficiency rating of 81.2 is above the national average of 63.6.
The NBI records a navigation clearance of 4 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 545 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
About 4 feet above ground — standard overpass height.
About 1,660 vehicles cross daily — light traffic, a smooth crossing.
The deck is 26 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
2011
15 years old
Structure Type
Prestressed Concrete Stringer/Multi-beam/Girder
Total Length
545 ft
166.1 m
Deck Width
26 ft
7.9 m
Spans
8
sections between supports
Max Span
70 ft
longest unsupported section (21.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
4 ft
navigation clearance under deck
Daily Traffic
1,660vehicles/day
43.88001°N, 69.66286°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.