Structure M17022AQ7DOTNBI · Essex County, MA

ST 28 Broadway over St213

Carries ST 28 Broadway over St213, .6 Mile E Of I 93.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT165 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

165 ft end to end, longest span 83 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built201115 years old
Length165.4 ft50.4 m
Daily traffic38,147counted 2019
Last inspectedAugust 2023every 24 months

Location

StateMassachusetts
CountyEssex
Location.6 Mile E Of I 93
CarriesST 28 Broadway
CrossesSt213
Coordinates42.73268, -71.19129

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length165.4 ft (50.4 m)
Max Span82.7 ft (25.2 m)
Deck Width76.4 ft (23.3 m)
Deck Area1174.3 sq m
Main Spans2
Year Built2011

Traffic

Avg Daily Traffic38,147 (2019)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberM17022AQ7DOTNBI

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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