Loading structural data... this is riveting stuff.
Loading structural data... this is riveting stuff.
Why did the truss bridge break up with the beam bridge? It needed more support.
over W&OD TRAIL
7.2 MILES FROM DULLES AIR
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 22,000 vehicles per day and is 42 years old.
Its sufficiency rating of 59.2 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 170 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 22,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 66 feet wide with multiple lanes — easy to stay in a center lane.
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
1984
42 years old
Structure Type
Steel Stringer/Multi-beam/Girder
Total Length
170 ft
51.7 m
Deck Width
66 ft
20.2 m
Spans
3
sections between supports
Max Span
57 ft
longest unsupported section (17.4 m)
Traffic Lanes
4 lanes
One-way traffic
Daily Traffic
22,000vehicles/day
38.94492°N, 77.32623°W
Steel Stringer/Multi-beam/Girder
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.