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.
Gathering condition ratings from coast to coast...
over N POWDER R (BIDWELL LANE
158 MI N JCT CO RD #518
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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 53 vehicles per day and is 97 years old.
Its sufficiency rating of 55.5 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 55 feet long — a quick crossing, under 5 seconds at highway speed.
A truss bridge — the steel framework can provide a sense of enclosure.
No height data available — likely a standard overpass height.
Only about 53 vehicles cross daily — very light traffic with low congestion risk.
The deck is 25 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
Steel Truss (Thru)
Total Length
55 ft
16.8 m
Deck Width
25 ft
7.7 m
Spans
1
sections between supports
Max Span
54 ft
longest unsupported section (16.5 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
53vehicles/day
45.02411°N, 117.91915°W
Steel Truss (Thru)
A steel truss bridge uses a framework of interconnected triangular elements. The geometric rigidity of triangles makes this design extremely efficient at distributing loads.
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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.