US Bridges

ST 24 over HWY Oak ST

Fair

Plymouth County, Massachusetts · .3 Mi.N of ST 27 · Structure no. B250543N1DOTNBI

Built
1955
70 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
118,909
2022 count
Owner
State
State Highway Agency

About this bridge

ST 24 over HWY Oak ST is a steel stringer/multi-beam or girder carrying ST 24 over HWY Oak ST in Plymouth County, Massachusetts. It was built in 1955, so it is 70 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 118,909 vehicles a day, roughly 5% of them trucks, projected to reach 139,410 by 2032. The structure is 69 ft (21 m) long and 109 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST 24
CrossesHWY Oak ST
Location.3 Mi.N of ST 27
RouteState Highway 24
CountyPlymouth County
StateMassachusetts
Coordinates42.10117, -71.05758
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length69 ft (21 m)
Longest span64 ft (19.5 m)
Deck width109 ft (33.2 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118,909 (2022)
Projected traffic139,410 by 2032
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$104,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 24 over HWY Oak ST built?

It was built in 1955, making it 70 years old in 2025.

What condition is ST 24 over HWY Oak ST 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 HWY Oak ST carry?

About 118,909 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is ST 24 over HWY Oak ST?

The structure is 69 ft (21 m) long with a longest span of 64 ft (19.5 m) and a deck 109 ft wide.

Who owns ST 24 over HWY Oak ST?

It is owned by the State Highway Agency.