Structure B250493N0DOTNBI · Plymouth County, MA

ST 24 over HWY Torrey ST

Carries ST 24 over HWY Torrey ST, .3 Mi.n Of ST 123.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

68 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 multi-beam bridge.

Built195472 years old
Length68.2 ft20.8 m
Daily traffic106,550counted 2021
Last inspectedMarch 2023every 24 months

Location

StateMassachusetts
CountyPlymouth
Location.3 Mi.n Of ST 123
CarriesST 24
CrossesHWY Torrey ST
Coordinates42.07111, -71.06239

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length68.2 ft (20.8 m)
Max Span63.0 ft (19.2 m)
Deck Width105.0 ft (32 m)
Deck Area665.6 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic106,550 (2021)
Truck Traffic5%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure NumberB250493N0DOTNBI

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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