Did you know? The oldest bridge in the NBI was built in 1697.
Did you know? The oldest bridge in the NBI was built in 1697.
Fun fact: The average American crosses 4 bridges a day without even noticing.
over SAN MARCO/PALM/ST J RIV.
I-95/SMARCO/PALM/ST J RIV
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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 170,000 vehicles per day and is 23 years old (reconstructed in 2017).
Its sufficiency rating of 77.1 is above the national average of 63.6.
The NBI records a navigation clearance of 18 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 has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 2140 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 18 feet above ground — moderate height, similar to a 3-5 story building.
About 170,000 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 129 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
2003
23 years old (rebuilt 2017)
Structure Type
Prestressed Concrete Stringer/Multi-beam/Girder
Total Length
2,140 ft
652.3 m
Deck Width
129 ft
39.3 m
Spans
16
sections between supports
Max Span
140 ft
longest unsupported section (42.7 m)
Traffic Lanes
6 lanes
Two-way traffic
Clearance Below
18 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
170,000vehicles/day
30.31396°N, 81.66283°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.