US Bridges

ST 24 over ST 79 S Main ST

Good

Bristol County, Massachusetts · ST 24 at ST 79 (assonet) · Structure no. F090113MTDOTNBI

Built
1951
74 years old, rebuilt 2009
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
42,505
2022 count
Owner
State
State Highway Agency

About this bridge

ST 24 over ST 79 S Main ST is a steel stringer/multi-beam or girder carrying ST 24 over ST 79 S Main ST in Bristol County, Massachusetts. It was built in 1951 and reconstructed in 2009, so it is 74 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 42,505 vehicles a day, roughly 10% of them trucks, projected to reach 54,486 by 2032. The structure is 81 ft (24.7 m) long and 101 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesST 24
CrossesST 79 S Main ST
LocationST 24 at ST 79 (assonet)
RouteState Highway 24
Coordinates41.78515, -71.07989
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.2 US tons
Inventory rating60.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length81 ft (24.7 m)
Longest span76 ft (23.2 m)
Deck width101 ft (30.8 m)
Roadway width77 ft (23.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,505 (2022)
Projected traffic54,486 by 2032
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 24 over ST 79 S Main ST built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2009.

What condition is ST 24 over ST 79 S Main 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 June 2023.

How much traffic does ST 24 over ST 79 S Main ST carry?

About 42,505 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is ST 24 over ST 79 S Main ST?

The structure is 81 ft (24.7 m) long with a longest span of 76 ft (23.2 m) and a deck 101 ft wide.

Who owns ST 24 over ST 79 S Main ST?

It is owned by the State Highway Agency.