Why don't bridges ever get lonely? Because they're always making connections.
Why don't bridges ever get lonely? Because they're always making connections.
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
over ST. JOHNS RIVER
SR-13 SB/ ST. JOHNS RIVER
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 16,000 vehicles per day and is 35 years old.
Its sufficiency rating of 77.1 is above the national average of 63.6.
The NBI records a navigation clearance of 1 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 1645 feet long — a longer crossing, over 1 minute.
A standard bridge design.
About 1 feet above ground — standard overpass height.
About 16,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 75 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
1991
35 years old
Structure Type
Prestressed Concrete (Continuous) Segmental Box Girder
Total Length
1,645 ft
501.4 m
Deck Width
75 ft
23.0 m
Spans
5
sections between supports
Max Span
630 ft
longest unsupported section (192.0 m)
Traffic Lanes
3 lanes
One-way traffic
Clearance Below
1 ft
navigation clearance under deck
Daily Traffic
16,000vehicles/day
30.32183°N, 81.66450°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.