Structure D030162T7DOTNBI · Essex County, MA

US 1 Sb/newbry ST over ST 62 Maple ST

Carries US 1 Sb/newbry ST over ST 62 Maple ST, 1.6 Mi N Of St-114.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT98 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

98 ft end to end, longest span 45 ft. Lengths and the car on the deck are drawn to the same scale. 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 multi-beam bridge.

Built1950rebuilt 2009
Length98.1 ft29.9 m
Daily traffic19,815counted 2019
Last inspectedMay 2024every 24 months

Location

StateMassachusetts
CountyEssex
Location1.6 Mi N Of St-114
CarriesUS 1 Sb/newbry ST
CrossesST 62 Maple ST
Coordinates42.58407, -70.96739

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length98.1 ft (29.9 m)
Max Span44.9 ft (13.7 m)
Deck Width50.5 ft (15.4 m)
Deck Area460.5 sq m
Main Spans2
Year Built1950 (reconstructed 2009)

Traffic

Avg Daily Traffic19,815 (2019)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberD030162T7DOTNBI

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.

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