US Bridges

I 84 WB over ST131 Main ST

Fair

Worcester County, Massachusetts · .4 MI S of US-20 · Structure no. S300421PPDOTNBI

Built
1973
52 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
112 ft
1 main span
Daily traffic
29,476
2022 count
Owner
State
State Highway Agency

About this bridge

I 84 WB over ST131 Main ST is a steel stringer/multi-beam or girder carrying I 84 WB over ST131 Main ST in Worcester County, Massachusetts. It was built in 1973, so it is 52 years old, younger 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 5 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 29,476 vehicles a day, roughly 18% of them trucks, projected to reach 39,482 by 2033. The structure is 112 ft (34.1 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 84 WB
CrossesST131 Main ST
Location.4 MI S of US-20
RouteInterstate 84
CountyWorcester County
StateMassachusetts
Coordinates42.10977, -72.08263
Functional classUrban Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.1 US tons
Inventory rating24.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length112 ft (34.1 m)
Longest span104 ft (31.7 m)
Deck width67 ft (20.5 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,476 (2022)
Projected traffic39,482 by 2033
Trucks18%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 84 WB over ST131 Main ST built?

It was built in 1973, making it 52 years old in 2025.

What condition is I 84 WB over ST131 Main 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 January 2024.

How much traffic does I 84 WB over ST131 Main ST carry?

About 29,476 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I 84 WB over ST131 Main ST?

The structure is 112 ft (34.1 m) long with a longest span of 104 ft (31.7 m) and a deck 67 ft wide.

Who owns I 84 WB over ST131 Main ST?

It is owned by the State Highway Agency.