41,685 bridges are in poor condition. But this loading screen isn't one of them.
41,685 bridges are in poor condition. But this loading screen isn't one of them.
Why don't bridges ever get lonely? Because they're always making connections.
over MACKAY CREEK
@ HILTON HEAD ISLAND
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Poor overall condition rating of 4 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 28,950 vehicles per day and is 70 years old (reconstructed in 1984).
Its sufficiency rating of 55.9 places it below the national average of 63.6.
The NBI records a navigation clearance of 25 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 2230 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 25 feet above ground — moderate height, similar to a 3-5 story building.
About 28,950 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 39 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
1956
70 years old (rebuilt 1984)
Structure Type
Steel Stringer/Multi-beam/Girder
Total Length
2,230 ft
679.8 m
Deck Width
39 ft
12.0 m
Spans
1
sections between supports
Max Span
70 ft
longest unsupported section (21.4 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
25 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
28,950vehicles/day
32.23051°N, 80.79184°W
Steel Stringer/Multi-beam/Girder
A steel stringer bridge uses parallel steel beams (stringers) to support the deck. This is one of the most common bridge types in the US, valued for its simplicity and strength.
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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.