Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
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over S F S BR POTOMAC RIVER
0.07 RT 620S-0.01 RT 620N
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Good overall condition rating of 7 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 127 vehicles per day and is 50 years old (reconstructed in 2014).
Its sufficiency rating of 68.7 is above 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 56 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
Only about 127 vehicles cross daily — very light traffic with low congestion risk.
The deck is 28 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
1976
50 years old (rebuilt 2014)
Structure Type
Prestressed Concrete Box Beam (Multiple)
Total Length
56 ft
17.1 m
Deck Width
28 ft
8.6 m
Spans
1
sections between supports
Max Span
56 ft
longest unsupported section (17.1 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
127vehicles/day
38.42337°N, 79.37071°W
Prestressed Concrete Box Beam (Multiple)
A prestressed concrete box beam bridge combines hollow box sections with prestressing technology, enabling longer spans with reduced weight and material usage.
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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.