Why was the bridge always tired? Too many crossings.
Why was the bridge always tired? Too many crossings.
Why did the truss bridge break up with the beam bridge? It needed more support.
over GRAND CALUMET RIVER
00.10 N. of HEMLOCK 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 6,500 vehicles per day and is 106 years old (reconstructed in 2023).
Its sufficiency rating of 69.3 is above the national average of 63.6.
The NBI records a navigation clearance of 10 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 51 feet long — a quick crossing, under 5 seconds at highway speed.
An arch bridge design with some openness to the surroundings.
About 10 feet above ground — standard overpass height.
About 6,500 vehicles cross daily — light traffic, a smooth crossing.
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
1920
106 years old (rebuilt 2023)
Structure Type
Concrete Arch (Deck)
Total Length
51 ft
15.4 m
Deck Width
39 ft
12.0 m
Spans
1
sections between supports
Max Span
49 ft
longest unsupported section (14.8 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
10 ft
navigation clearance under deck
Daily Traffic
6,500vehicles/day
41.61535°N, 87.26854°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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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.