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Why did the truss bridge break up with the beam bridge? It needed more support.
over IROQUOIS RIVER
0.00 MILES E OF CR 1000 W
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 139 vehicles per day and is 61 years old.
Its sufficiency rating of 60.4 places it below the national average of 63.6.
The NBI records a navigation clearance of 9 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 is likely to be a comfortable crossing for most travelers.
This bridge is 35 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 9 feet above ground — standard overpass height.
Only about 139 vehicles cross daily — very light traffic with low congestion risk.
The deck is 44 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
1965
61 years old
Structure Type
Prestressed Concrete Box Beam (Multiple)
Total Length
35 ft
10.6 m
Deck Width
44 ft
13.5 m
Spans
1
sections between supports
Max Span
31 ft
longest unsupported section (9.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
9 ft
navigation clearance under deck
Daily Traffic
139vehicles/day
40.99821°N, 87.23788°W
Prestressed Concrete Box Beam (Multiple)
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.