Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
A bridge walked into a bar. The bartender said, 'Why the long span?'
over LEH.R. NS(0521) ALB.ST.
LEHIGH RIVER BRIDGE
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 24,900 vehicles per day and is 67 years old (reconstructed in 1994).
Its sufficiency rating of 47.9 places it below the national average of 63.6.
The NBI records a navigation clearance of 16 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 830 feet long — a moderate crossing, about 30 seconds.
A standard overpass design with solid barriers on each side.
About 16 feet above ground — standard overpass height.
About 24,900 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 64 feet wide with 3-4 lanes — standard width.
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
1959
67 years old (rebuilt 1994)
Structure Type
Prestressed Concrete Stringer/Multi-beam/Girder
Total Length
830 ft
253.0 m
Deck Width
64 ft
19.4 m
Spans
9
sections between supports
Max Span
95 ft
longest unsupported section (29.0 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
16 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
24,900vehicles/day
40.60640°N, 75.45410°W
Prestressed Concrete Stringer/Multi-beam/Girder
A prestressed concrete stringer bridge uses pretensioned concrete beams, where steel tendons are stretched before concrete is poured. This creates stronger, lighter spans.
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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.