US Bridges

I 290 EB over ST 12 Southbridge ST

Fair

Worcester County, Massachusetts · .2MI. N. of US-20 · Structure no. A170361QPDOTNBI

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
186 ft
3 main spans
Daily traffic
40,979
2023 count
Owner
State
State Highway Agency

About this bridge

I 290 EB over ST 12 Southbridge ST is a steel stringer/multi-beam or girder carrying I 290 EB over ST 12 Southbridge ST in Worcester County, Massachusetts. It was built in 1965, so it is 60 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 40,979 vehicles a day, roughly 15% of them trucks, projected to reach 134,240 by 2032. The structure is 186 ft (56.7 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 290 EB
CrossesST 12 Southbridge ST
Location.2MI. N. of US-20
RouteInterstate 290
CountyWorcester County
StateMassachusetts
Coordinates42.19009, -71.8468
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.3 US tons
Inventory rating36.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length186 ft (56.7 m)
Longest span94 ft (28.7 m)
Deck width55 ft (16.8 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,979 (2023)
Projected traffic134,240 by 2032
Trucks15%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$11.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 290 EB over ST 12 Southbridge ST built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 290 EB over ST 12 Southbridge 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 May 2023.

How much traffic does I 290 EB over ST 12 Southbridge ST carry?

About 40,979 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I 290 EB over ST 12 Southbridge ST?

The structure is 186 ft (56.7 m) long with a longest span of 94 ft (28.7 m) and a deck 55 ft wide.

Who owns I 290 EB over ST 12 Southbridge ST?

It is owned by the State Highway Agency.