The average US bridge is 48 years old. That's a lot of birthday candles.
The average US bridge is 48 years old. That's a lot of birthday candles.
Why don't bridges ever get lonely? Because they're always making connections.
over BEAVER CREEK
ON SD ROUTE 87 MP 41.4;
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 326 vehicles per day and is 97 years old.
Its sufficiency rating of 52.8 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 220 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.
Only about 326 vehicles cross daily — very light traffic with low congestion risk.
The deck is 23 feet wide with 1-2 lanes — a narrower crossing.
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
1929
97 years old
Structure Type
Concrete Arch (Deck)
Total Length
220 ft
67.1 m
Deck Width
23 ft
7.1 m
Spans
1
sections between supports
Max Span
120 ft
longest unsupported section (36.6 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
326vehicles/day
43.58400°N, 103.48944°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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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.