Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
Connecting the data points... literally.
over W CHANNEL SAGINAW RIVER
IN BAY CITY (LAFAYETTE AV
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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 25,874 vehicles per day and is 88 years old (reconstructed in 2005).
Its sufficiency rating of 55.5 places it below the national average of 63.6.
The NBI records a navigation clearance of 1 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 507 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
About 1 feet above ground — standard overpass height.
About 25,874 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 45 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
1938
88 years old (rebuilt 2005)
Structure Type
Steel (Continuous) Stringer/Multi-beam/Girder
Total Length
507 ft
154.5 m
Deck Width
45 ft
13.8 m
Spans
6
sections between supports
Max Span
98 ft
longest unsupported section (29.9 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
1 ft
navigation clearance under deck
Daily Traffic
25,874vehicles/day
43.58006°N, 83.90340°W
Steel (Continuous) Stringer/Multi-beam/Girder
A steel stringer bridge uses parallel steel beams (stringers) to support the deck. This is one of the most common bridge types in the US, valued for its simplicity and strength.
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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.