US Bridges

I 91 & Rmps L & M over I 291 & City Sts

Fair

Hampden County, Massachusetts · JCT I-291 & City Streets · Structure no. S2406110LDOTNBI

Built
1971
54 years old, rebuilt 2016
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
3,197 ft
13 main spans
Daily traffic
73,255
2024 count
Owner
State
State Highway Agency

About this bridge

I 91 & Rmps L & M over I 291 & City Sts is a steel stringer/multi-beam or girder carrying I 91 & Rmps L & M over I 291 & City Sts in Hampden County, Massachusetts. It was built in 1971 and reconstructed in 2016, so it is 54 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 73,255 vehicles a day, roughly 9% of them trucks, projected to reach 169,143 by 2031. The structure is 3,197 ft (974.4 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI 91 & Rmps L & M
CrossesI 291 & City Sts
LocationJCT I-291 & City Streets
RouteInterstate 91
CountyHampden County
StateMassachusetts
Coordinates42.10516, -72.59987
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.
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 inspectionOctober 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.8 US tons
Inventory rating30.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans13 (+19 approach)
Design loadHS 20 + Mod
Structure length3,197 ft (974.4 m)
Longest span115 ft (35.1 m)
Deck width45 ft (13.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic73,255 (2024)
Projected traffic169,143 by 2031
Trucks9%
Lanes on structure4
Traffic directionTwo-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$130.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 & Rmps L & M over I 291 & City Sts built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2016.

What condition is I 91 & Rmps L & M over I 291 & City Sts 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 October 2024.

How much traffic does I 91 & Rmps L & M over I 291 & City Sts carry?

About 73,255 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is I 91 & Rmps L & M over I 291 & City Sts?

The structure is 3,197 ft (974.4 m) long with a longest span of 115 ft (35.1 m) and a deck 45 ft wide.

Who owns I 91 & Rmps L & M over I 291 & City Sts?

It is owned by the State Highway Agency.