US Bridges

I 91 SB over HWY Emerson RD

Fair

Hampden County, Massachusetts · Mm 2.1 on I-91 · Structure no. L140010YWDOTNBI

Built
1959
66 years old, rebuilt 1985
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
45,776
2020 count
Owner
State
State Highway Agency

About this bridge

I 91 SB over HWY Emerson RD is a steel stringer/multi-beam or girder carrying I 91 SB over HWY Emerson RD in Hampden County, Massachusetts. It was built in 1959 and reconstructed in 1985, so it is 66 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 45,776 vehicles a day, roughly 13% of them trucks, projected to reach 107,846 by 2033. The structure is 48 ft (14.6 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 91 SB
CrossesHWY Emerson RD
LocationMm 2.1 on I-91
RouteInterstate 91
CountyHampden County
StateMassachusetts
Coordinates42.05778, -72.58936
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.9 US tons
Inventory rating59.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length48 ft (14.6 m)
Longest span45 ft (13.6 m)
Deck width57 ft (17.5 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,776 (2020)
Projected traffic107,846 by 2033
Trucks13%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$632,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 SB over HWY Emerson RD built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1985.

What condition is I 91 SB over HWY Emerson RD 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 HWY Emerson RD carry?

About 45,776 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is I 91 SB over HWY Emerson RD?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.6 m) and a deck 57 ft wide.

Who owns I 91 SB over HWY Emerson RD?

It is owned by the State Highway Agency.