What did one bridge say to the other? 'You're looking a bit stressed.'
What did one bridge say to the other? 'You're looking a bit stressed.'
The average US bridge is 48 years old. That's a lot of birthday candles.
over ST110 /ST113/LOWELL ST
.9 MI N MERRIMAC RIVER
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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 112,881 vehicles per day and is 9 years old.
Its sufficiency rating of 75.5 is above the national average of 63.6.
The NBI records a navigation clearance of 17 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 198 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
About 17 feet above ground — moderate height, similar to a 3-5 story building.
About 112,881 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 164 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
2017
9 years old
Structure Type
Steel (Continuous) Stringer/Multi-beam/Girder
Total Length
198 ft
60.5 m
Deck Width
164 ft
49.9 m
Spans
2
sections between supports
Max Span
110 ft
longest unsupported section (33.5 m)
Traffic Lanes
8 lanes
Two-way traffic
Clearance Below
17 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
112,881vehicles/day
42.70503°N, 71.21041°W
Steel (Continuous) Stringer/Multi-beam/Girder
A steel stringer bridge uses parallel steel beams (stringers) to support the deck. This is one of the most common bridge types in the US, valued for its simplicity and strength.
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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.