Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
What's a bridge's favorite exercise? Cross-fit.
over TR RED LINE
.4 MI N OF CONCORD AVE
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This bridge has a Poor overall condition rating of 3 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 25,732 vehicles per day and is 43 years old.
Its sufficiency rating of 33.5 places it below the national average of 63.6.
The NBI records a navigation clearance of 14 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 is likely to be a comfortable crossing for most travelers.
This bridge is 74 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 14 feet above ground — standard overpass height.
About 25,732 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 63 feet wide with 3-4 lanes — standard 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
1983
43 years old
Structure Type
Prestressed Concrete Box Beam (Multiple)
Total Length
74 ft
22.6 m
Deck Width
63 ft
19.2 m
Spans
1
sections between supports
Max Span
65 ft
longest unsupported section (19.8 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
14 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
25,732vehicles/day
42.39622°N, 71.14072°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.