US Bridges

I 91 SB over ST 2 WB Rotary

Fair

Franklin County, Massachusetts · Mm 43.1 on I-91 SB · Structure no. G120600XKDOTNBI

Built
1966
59 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
8,227
2024 count
Owner
State
State Highway Agency

About this bridge

I 91 SB over ST 2 WB Rotary is a steel stringer/multi-beam or girder carrying I 91 SB over ST 2 WB Rotary in Franklin County, Massachusetts. It was built in 1966, so it is 59 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 8,227 vehicles a day, roughly 11% of them trucks, projected to reach 19,662 by 2033. The structure is 92 ft (28.1 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI 91 SB
CrossesST 2 WB Rotary
LocationMm 43.1 on I-91 SB
RouteInterstate 91
CountyFranklin County
StateMassachusetts
Coordinates42.58617, -72.62145
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length92 ft (28.1 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,227 (2024)
Projected traffic19,662 by 2033
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$3.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 SB over ST 2 WB Rotary built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 91 SB over ST 2 WB Rotary 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 91 SB over ST 2 WB Rotary carry?

About 8,227 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I 91 SB over ST 2 WB Rotary?

The structure is 92 ft (28.1 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns I 91 SB over ST 2 WB Rotary?

It is owned by the State Highway Agency.