Structure B165965VRDOTNBI · Suffolk County, MA

HWY D ST over Comb Haul RD & Csx

Carries HWY D ST over Comb Haul RD & Csx, At Haul Road.

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 FT148 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

148 ft end to end: 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.

Built200521 years old
Length148.3 ft45.2 m
Daily traffic23,300counted 2024
Last inspectedMay 2024every 24 months

Location

StateMassachusetts
CountySuffolk
LocationAt Haul Road
CarriesHWY D ST
CrossesComb Haul RD & Csx
Coordinates42.34686, -71.04144

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length148.3 ft (45.2 m)
Max Span142.1 ft (43.3 m)
Deck Width104.0 ft (31.7 m)
Deck Area1432.8 sq m
Main Spans1
Year Built2005

Traffic

Avg Daily Traffic23,300 (2024)
Truck Traffic22%
Lanes On Bridge4
Lanes Under Bridge3

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberB165965VRDOTNBI

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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