US Bridges

I 91 SB over HWY East ST

Good

Hampshire County, Massachusetts · Mm 21.0 on I-91 SB · Structure no. E05024B2ADOTNBI

Built
2009
16 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
281 ft
3 main spans
Daily traffic
27,526
2017 count
Owner
State
State Highway Agency

About this bridge

I 91 SB over HWY East ST is a steel continuous stringer/multi-beam or girder carrying I 91 SB over HWY East ST in Hampshire County, Massachusetts. It was built in 2009, so it is 16 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 27,526 vehicles a day, roughly 6% of them trucks, projected to reach 102,654 by 2031. The structure is 281 ft (85.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 91 SB
CrossesHWY East ST
LocationMm 21.0 on I-91 SB
RouteInterstate 91
Coordinates42.28619, -72.62011
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.1 US tons
Inventory rating60.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length281 ft (85.8 m)
Longest span103 ft (31.3 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,526 (2017)
Projected traffic102,654 by 2031
Trucks6%
Lanes on structure2
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 SB over HWY East ST built?

It was built in 2009, making it 16 years old in 2025.

What condition is I 91 SB over HWY East ST in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does I 91 SB over HWY East ST carry?

About 27,526 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is I 91 SB over HWY East ST?

The structure is 281 ft (85.8 m) long with a longest span of 103 ft (31.3 m) and a deck 42 ft wide.

Who owns I 91 SB over HWY East ST?

It is owned by the State Highway Agency.