US Bridges

I 91 NB over Other Manhan Rail Trail

Fair

Hampshire County, Massachusetts · Mm 21.2 on I-91 NB · Structure no. E050250XADOTNBI

Built
1963
62 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
206 ft
3 main spans
Daily traffic
27,714
2017 count
Owner
State
State Highway Agency

About this bridge

I 91 NB over Other Manhan Rail Trail is a steel stringer/multi-beam or girder carrying I 91 NB over Other Manhan Rail Trail in Hampshire County, Massachusetts. It was built in 1963, so it is 62 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 27,714 vehicles a day, roughly 6% of them trucks, projected to reach 39,956 by 2033. The structure is 206 ft (62.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 91 NB
CrossesOther Manhan Rail Trail
LocationMm 21.2 on I-91 NB
RouteInterstate 91
CountyHampshire County
StateMassachusetts
Coordinates42.28709, -72.62125
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length206 ft (62.8 m)
Longest span67 ft (20.3 m)
Deck width44 ft (13.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,714 (2017)
Projected traffic39,956 by 2033
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 NB over Other Manhan Rail Trail built?

It was built in 1963, making it 62 years old in 2025.

What condition is I 91 NB over Other Manhan Rail Trail 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 2024.

How much traffic does I 91 NB over Other Manhan Rail Trail carry?

About 27,714 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is I 91 NB over Other Manhan Rail Trail?

The structure is 206 ft (62.8 m) long with a longest span of 67 ft (20.3 m) and a deck 44 ft wide.

Who owns I 91 NB over Other Manhan Rail Trail?

It is owned by the State Highway Agency.