Loading structural data... this is riveting stuff.
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Why don't bridges ever get lonely? Because they're always making connections.
over MISSISSIPPI RIVER
1 MI W OF ILL 84
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 9,650 vehicles per day and is 70 years old (reconstructed in 1999).
Its sufficiency rating of 59.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 45 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 4165 feet long — an extended crossing, several minutes.
A suspension bridge — an open design, typically high above the waterway.
About 45 feet above ground — moderate height, similar to a 3-5 story building.
About 9,650 vehicles cross daily — light traffic, a smooth crossing.
The deck is 33 feet wide with 1-2 lanes — a narrower crossing.
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 1999)
Structure Type
Steel Suspension
Total Length
4,165 ft
1269.5 m
Deck Width
33 ft
10.0 m
Spans
1
sections between supports
Max Span
644 ft
longest unsupported section (196.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
45 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
9,650vehicles/day
41.83787°N, 90.17369°W
Steel Suspension
A suspension bridge hangs the deck from cables supported by tall towers. This design enables the longest bridge spans in the world.
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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.