Gathering condition ratings from coast to coast...
Gathering condition ratings from coast to coast...
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over CHIPPEWA RIVER 18
0.8M E JCT STH 178
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 3,500 vehicles per day and is 55 years old.
Its sufficiency rating of 71.2 is above the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 490 feet long — a short crossing, about 10-15 seconds.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 3,500 vehicles cross daily — light traffic, a smooth crossing.
The deck is 51 feet wide with 3-4 lanes — standard 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
1971
55 years old
Structure Type
Steel Arch (Thru)
Total Length
490 ft
149.4 m
Deck Width
51 ft
15.4 m
Spans
1
sections between supports
Max Span
485 ft
longest unsupported section (147.8 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
3,500vehicles/day
45.16532°N, 91.15885°W
Steel Arch (Thru)
A steel arch bridge uses a curved steel structure to carry loads primarily through compression. These bridges are known for their elegant appearance and structural efficiency.
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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.