Structure B162093GUDOT634 · Suffolk County, MA

HWY W Second ST over Comb Haul RD & Mbta Red

Carries HWY W Second ST over Comb Haul RD & Mbta Red, .8 Km SW D ST.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

72 ft end to end. 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 girder bridge.

Built1918108 years old
Length71.9 ft21.9 m
Daily traffic8,146counted 2023
Last inspectedNovember 2023every 24 months

Location

StateMassachusetts
CountySuffolk
Location.8 Km SW D ST
CarriesHWY W Second ST
CrossesComb Haul RD & Mbta Red
Coordinates42.34251, -71.05288

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length71.9 ft (21.9 m)
Max Span64.6 ft (19.7 m)
Deck Width51.2 ft (15.6 m)
Deck Area341.6 sq m
Main Spans1
Year Built1918

Traffic

Avg Daily Traffic8,146 (2023)
Truck Traffic23%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberB162093GUDOT634

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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