US Bridges

ST 24 over RR Mbta/Csx

Fair

Bristol County, Massachusetts · CSX MP Qnb 14.29 N of 140 · Structure no. T010473MQDOTNBI

Built
1950
75 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
68,317
2022 count
Owner
State
State Highway Agency

About this bridge

ST 24 over RR Mbta/Csx is a concrete frame carrying ST 24 over RR Mbta/Csx in Bristol County, Massachusetts. It was built in 1950, so it is 75 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 68,317 vehicles a day, roughly 5% of them trucks, projected to reach 91,599 by 2032. The structure is 28 ft (8.5 m) long and 124 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesST 24
CrossesRR Mbta/Csx
LocationCSX MP Qnb 14.29 N of 140
RouteState Highway 24
CountyBristol County
StateMassachusetts
Coordinates41.87574, -71.0545
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating67.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width124 ft (37.8 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68,317 (2022)
Projected traffic91,599 by 2032
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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$569,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 24 over RR Mbta/Csx built?

It was built in 1950, making it 75 years old in 2025.

What condition is ST 24 over RR Mbta/Csx in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does ST 24 over RR Mbta/Csx carry?

About 68,317 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is ST 24 over RR Mbta/Csx?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 124 ft wide.

Who owns ST 24 over RR Mbta/Csx?

It is owned by the State Highway Agency.