Loading structural data... this is riveting stuff.
Loading structural data... this is riveting stuff.
If I had a dime for every bridge I've crossed, I'd have about ten bucks by now.
over WATER CONCORD RIVER
1 MI N OF BILLERICA CTR
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 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 18,283 vehicles per day and is 106 years old.
Its sufficiency rating of 63.6 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 180 feet long — a short crossing, about 10-15 seconds.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 18,283 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 40 feet wide with 2-3 lanes — moderate 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
1920
106 years old
Structure Type
Concrete Arch (Deck)
Total Length
180 ft
54.9 m
Deck Width
40 ft
12.1 m
Spans
3
sections between supports
Max Span
65 ft
longest unsupported section (19.8 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
18,283vehicles/day
42.57410°N, 71.28023°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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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.