Connecting the data points... literally.
Connecting the data points... literally.
Over 5 billion bridge crossings happen every single day in America.
over CALHOUN VIADUCT
MILE POINT 0.2
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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 2,816 vehicles per day and is 92 years old.
Its sufficiency rating of 50.9 places it below 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 295 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 2,816 vehicles cross daily — light traffic, a smooth crossing.
The deck is 30 feet wide with 1-2 lanes — a narrower crossing.
This bridge crosses over land, not water — no water views 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
1934
92 years old
Structure Type
Concrete (Continuous) Stringer/Multi-beam/Girder
Total Length
295 ft
89.9 m
Deck Width
30 ft
9.1 m
Spans
15
sections between supports
Max Span
21 ft
longest unsupported section (6.4 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
2,816vehicles/day
58.30194°N, 134.41278°W
Concrete (Continuous) Stringer/Multi-beam/Girder
A concrete stringer bridge uses reinforced concrete beams running parallel to traffic. It combines the durability of concrete with efficient beam-based load distribution.
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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.