Structure A07026BPADOTNBI · Essex County, MA

I 495 NB over Tr Amesbury Riverwalk

Carries I 495 NB over Tr Amesbury Riverwalk, .1 Mi N Exit 55.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a rigid-frame bridge.

Built201610 years old
Length24.9 ft7.6 m
Daily traffic20,729counted 2025
Last inspectedJanuary 2025every 24 months

Location

StateMassachusetts
CountyEssex
Location.1 Mi N Exit 55
CarriesI 495 NB
CrossesTr Amesbury Riverwalk
Coordinates42.84778, -70.91700

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length24.9 ft (7.6 m)
Max Span24.9 ft (7.6 m)
Deck Width42.0 ft (12.8 m)
Deck Area97.3 sq m
Main Spans1
Year Built2016

Traffic

Avg Daily Traffic20,729 (2025)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberA07026BPADOTNBI

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges