US Bridges

ST 24 NB over HWY Canton ST

Good

Norfolk County, Massachusetts · 2.1 KM S. 0F I-93 · Structure no. R01004AAYDOTNBI

Built
1957
68 years old, rebuilt 2022
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
67,439
2023 count
Owner
State
State Highway Agency

About this bridge

ST 24 NB over HWY Canton ST is a steel stringer/multi-beam or girder carrying ST 24 NB over HWY Canton ST in Norfolk County, Massachusetts. It was built in 1957 and reconstructed in 2022, so it is 68 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 67,439 vehicles a day, roughly 8% of them trucks, projected to reach 108,972 by 2031. The structure is 66 ft (20.1 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesST 24 NB
CrossesHWY Canton ST
Location2.1 KM S. 0F I-93
RouteState Highway 24
CountyNorfolk County
StateMassachusetts
Coordinates42.18564, -71.07646
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.8 US tons
Inventory rating41.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length66 ft (20.1 m)
Longest span57 ft (17.4 m)
Deck width60 ft (18.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,439 (2023)
Projected traffic108,972 by 2031
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 24 NB over HWY Canton ST built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2022.

What condition is ST 24 NB over HWY Canton ST in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does ST 24 NB over HWY Canton ST carry?

About 67,439 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is ST 24 NB over HWY Canton ST?

The structure is 66 ft (20.1 m) long with a longest span of 57 ft (17.4 m) and a deck 60 ft wide.

Who owns ST 24 NB over HWY Canton ST?

It is owned by the State Highway Agency.