Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
Why was the bridge always tired? Too many crossings.
over FLINT RIVER
2.0 MI N OF M-21
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
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 73,748 vehicles per day and is 68 years old (reconstructed in 2010).
Its sufficiency rating of 64.0 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 492 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 73,748 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 122 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
1958
68 years old (rebuilt 2010)
Structure Type
Steel Stringer/Multi-beam/Girder
Total Length
492 ft
150.0 m
Deck Width
122 ft
37.1 m
Spans
6
sections between supports
Max Span
94 ft
longest unsupported section (28.8 m)
Traffic Lanes
6 lanes
Two-way traffic
Daily Traffic
73,748vehicles/day
43.02961°N, 83.75424°W
Steel 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.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track Michigan to receive alerts when new inspection data is published. Premium members get bridge-specific notifications.
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.