Fun fact: The average American crosses 4 bridges a day without even noticing.
Fun fact: The average American crosses 4 bridges a day without even noticing.
The average US bridge is 48 years old. That's a lot of birthday candles.
over SNAKE RIVER;W.BLACKFOOT
IN BLACKFOOT
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 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 18,000 vehicles per day and is 61 years old (reconstructed in 1983).
Its sufficiency rating of 65.0 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 467 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 18,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 77 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
1965
61 years old (rebuilt 1983)
Structure Type
Prestressed Concrete Stringer/Multi-beam/Girder
Total Length
467 ft
142.3 m
Deck Width
77 ft
23.5 m
Spans
6
sections between supports
Max Span
78 ft
longest unsupported section (23.9 m)
Traffic Lanes
4 lanes
Two-way traffic
Daily Traffic
18,000vehicles/day
43.20017°N, 112.36681°W
Prestressed Concrete Stringer/Multi-beam/Girder
A prestressed concrete stringer bridge uses pretensioned concrete beams, where steel tendons are stretched before concrete is poured. This creates stronger, lighter spans.
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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.