US Bridges

ST 83 SB Ramp Y over I 91

Fair

Hampden County, Massachusetts · At JCT I-91 · Structure no. S24049121DOTNBI

Built
1958
67 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
226 ft
4 main spans
Daily traffic
7,320
2007 count
Owner
State
State Highway Agency

About this bridge

ST 83 SB Ramp Y over I 91 is a steel stringer/multi-beam or girder carrying ST 83 SB Ramp Y over I 91 in Hampden County, Massachusetts. It was built in 1958, so it is 67 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 7,320 vehicles a day, roughly 3% of them trucks, projected to reach 11,560 by 2032. The structure is 226 ft (69 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesST 83 SB Ramp Y
CrossesI 91
LocationAt JCT I-91
RouteState Highway 21
CountyHampden County
StateMassachusetts
Coordinates42.07767, -72.58006
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 inspectionMarch 2023
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 rating49.9 US tons
Inventory rating24.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length226 ft (69 m)
Longest span75 ft (22.8 m)
Deck width30 ft (9.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic7,320 (2007)
Projected traffic11,560 by 2032
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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$6.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 83 SB Ramp Y over I 91 built?

It was built in 1958, making it 67 years old in 2025.

What condition is ST 83 SB Ramp Y over I 91 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 March 2023.

How much traffic does ST 83 SB Ramp Y over I 91 carry?

About 7,320 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is ST 83 SB Ramp Y over I 91?

The structure is 226 ft (69 m) long with a longest span of 75 ft (22.8 m) and a deck 30 ft wide.

Who owns ST 83 SB Ramp Y over I 91?

It is owned by the State Highway Agency.