What did one bridge say to the other? 'You're looking a bit stressed.'
What did one bridge say to the other? 'You're looking a bit stressed.'
Almost there! Just bridging the gap...
over S BR CHICAGO RIVER
W FRANKLIN AVE
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 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 76,900 vehicles per day and is 70 years old (reconstructed in 2010).
Its sufficiency rating of 65.7 is above the national average of 63.6.
The NBI records a navigation clearance of 22 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 may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 335 feet long — a short crossing, about 10-15 seconds.
A movable bridge — it may occasionally stop for boat traffic.
About 22 feet above ground — moderate height, similar to a 3-5 story building.
About 76,900 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 109 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
1956
70 years old (rebuilt 2010)
Structure Type
Steel Movable (Bascule)
Total Length
335 ft
102.1 m
Deck Width
109 ft
33.1 m
Spans
1
sections between supports
Max Span
221 ft
longest unsupported section (67.5 m)
Traffic Lanes
8 lanes
Two-way traffic
Clearance Below
22 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
76,900vehicles/day
41.87554°N, 87.63699°W
Steel Movable (Bascule)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
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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.