Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
The average US bridge is 48 years old. That's a lot of birthday candles.
over WHETSTONE RUN
0.447 M S of Midcounty
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 23,621 vehicles per day and is 40 years old (reconstructed in 1990).
Its sufficiency rating of 62.7 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 77 feet long — a quick crossing, under 5 seconds at highway speed.
This is a culvert — you may not even notice you're crossing it.
No height data available — likely a standard overpass height.
About 23,621 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 0 feet wide — a very narrow, single-lane 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
1986
40 years old (rebuilt 1990)
Structure Type
Aluminum/Wrought Iron/Cast Iron Culvert
Total Length
77 ft
23.5 m
Spans
4
sections between supports
Max Span
10 ft
longest unsupported section (3.0 m)
Traffic Lanes
4 lanes
Two-way traffic
Daily Traffic
23,621vehicles/day
39.15486°N, 77.18071°W
Aluminum/Wrought Iron/Cast Iron Culvert
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.
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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.