US Bridges

I 391 over HWY Mckinstry Ave

Fair

Hampden County, Massachusetts · 1 M N JCT I-90 · Structure no. C130440WJDOTNBI

Built
1978
47 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
49,525
2019 count
Owner
State
State Highway Agency

About this bridge

I 391 over HWY Mckinstry Ave is a steel stringer/multi-beam or girder carrying I 391 over HWY Mckinstry Ave in Hampden County, Massachusetts. It was built in 1978, so it is 47 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 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 49,525 vehicles a day, roughly 6% of them trucks, projected to reach 51,112 by 2032. The structure is 92 ft (27.9 m) long and 111 ft wide.

Location

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CarriesI 391
CrossesHWY Mckinstry Ave
Location1 M N JCT I-90
RouteInterstate 391
CountyHampden County
StateMassachusetts
Coordinates42.17158, -72.61019
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating48.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length92 ft (27.9 m)
Longest span85 ft (25.9 m)
Deck width111 ft (33.9 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,525 (2019)
Projected traffic51,112 by 2032
Trucks6%
Lanes on structure6
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$8.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 391 over HWY Mckinstry Ave built?

It was built in 1978, making it 47 years old in 2025.

What condition is I 391 over HWY Mckinstry Ave 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 2023.

How much traffic does I 391 over HWY Mckinstry Ave carry?

About 49,525 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is I 391 over HWY Mckinstry Ave?

The structure is 92 ft (27.9 m) long with a longest span of 85 ft (25.9 m) and a deck 111 ft wide.

Who owns I 391 over HWY Mckinstry Ave?

It is owned by the State Highway Agency.