Almost there! Just bridging the gap...
Almost there! Just bridging the gap...
What did one bridge say to the other? 'You're looking a bit stressed.'
over CUMBERLAND RIVER
I24-I40 INTERCHANGE-C8
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Fair overall condition rating of 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 133,050 vehicles per day and is 63 years old (reconstructed in 1973).
Its sufficiency rating of 58.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 38 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 2362 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 38 feet above ground — moderate height, similar to a 3-5 story building.
About 133,050 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 68 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
1963
63 years old (rebuilt 1973)
Structure Type
Steel (Continuous) Stringer/Multi-beam/Girder
Total Length
2,362 ft
719.9 m
Deck Width
68 ft
20.7 m
Spans
3
sections between supports
Max Span
321 ft
longest unsupported section (97.8 m)
Traffic Lanes
4 lanes
One-way traffic
Clearance Below
38 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
133,050vehicles/day
36.16232°N, 86.76120°W
Steel (Continuous) 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.