Did you know? The oldest bridge in the NBI was built in 1697.
Did you know? The oldest bridge in the NBI was built in 1697.
Analyzing deck conditions, superstructure ratings, and bad puns...
over WATER CHARLES RIVER
NEEDHAM/NEWTON TOWN LINE
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 22,500 vehicles per day and is 166 years old (reconstructed in 2016).
Its sufficiency rating of 67.5 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 86 feet long — a quick crossing, under 5 seconds at highway speed.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 22,500 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 44 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
1860
166 years old (rebuilt 2016)
Structure Type
Concrete Arch (Deck)
Total Length
86 ft
26.2 m
Deck Width
44 ft
13.4 m
Spans
3
sections between supports
Max Span
29 ft
longest unsupported section (8.8 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
22,500vehicles/day
42.31240°N, 71.22708°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.