Why was the bridge always tired? Too many crossings.
Why was the bridge always tired? Too many crossings.
Analyzing deck conditions, superstructure ratings, and bad puns...
over WATER CHARLES RIV/RAMPS
N OF TD GARDEN
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 155,200 vehicles per day and is 24 years old.
Its sufficiency rating of 57.3 places it below the national average of 63.6.
The NBI records a navigation clearance of 30 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 has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 1457 feet long — a moderate crossing, about 30 seconds.
A cable-stayed bridge with an open design and panoramic views.
About 30 feet above ground — moderate height, similar to a 3-5 story building.
About 155,200 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 183 feet wide with multiple lanes — easy to stay in a center lane.
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
2002
24 years old
Structure Type
Steel Cable-Stayed
Total Length
1,457 ft
444.2 m
Deck Width
183 ft
55.9 m
Spans
5
sections between supports
Max Span
745 ft
longest unsupported section (227.1 m)
Traffic Lanes
10 lanes
Two-way traffic
Clearance Below
30 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
155,200vehicles/day
42.36880°N, 71.06323°W
Steel Cable-Stayed
A cable-stayed bridge supports the deck with cables running directly from towers. These bridges combine dramatic aesthetics with engineering efficiency.
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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.