Over 5 billion bridge crossings happen every single day in America.
Over 5 billion bridge crossings happen every single day in America.
Fun fact: The average American crosses 4 bridges a day without even noticing.
over SO.MT.DRIVE(T-422)
I-78 OVER SO.MT. DRIVE
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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 30,843 vehicles per day and is 38 years old.
Its sufficiency rating of 77.7 is above the national average of 63.6.
The NBI records a navigation clearance of 24 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 150 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 24 feet above ground — moderate height, similar to a 3-5 story building.
About 30,843 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 48 feet wide with 2-3 lanes — moderate width.
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
1988
38 years old
Structure Type
Prestressed Concrete Box Beam (Multiple)
Total Length
150 ft
45.7 m
Deck Width
48 ft
14.5 m
Spans
3
sections between supports
Max Span
58 ft
longest unsupported section (17.7 m)
Traffic Lanes
2 lanes
One-way traffic
Clearance Below
24 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
30,843vehicles/day
40.59092°N, 75.36846°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.