Analyzing deck conditions, superstructure ratings, and bad puns...
Analyzing deck conditions, superstructure ratings, and bad puns...
Why did the bridge go to therapy? It had too many spans of anxiety.
over 3I75RMP-2I20RMP-3MRT-2MR
I-20 & I-75 INTERCHANGE
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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 179,000 vehicles per day and is 38 years old.
Its sufficiency rating of 73.7 is above the national average of 63.6.
The NBI records a navigation clearance of 37 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 1785 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 37 feet above ground — moderate height, similar to a 3-5 story building.
About 179,000 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 61 feet wide with 3-4 lanes — standard width.
This bridge crosses over land, not water — no water views 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
1988
38 years old
Structure Type
Prestressed Concrete (Continuous) Box Beam (Single/Spread)
Total Length
1,785 ft
544.1 m
Deck Width
61 ft
18.6 m
Spans
9
sections between supports
Max Span
270 ft
longest unsupported section (82.3 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
37 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
179,000vehicles/day
33.74526°N, 84.39179°W
Prestressed Concrete (Continuous) Box Beam (Single)
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.