US Bridges

I 00091 Ml over I 91 NB over Maple ST

Good

Windham County, Vermont · 0.7 MI N Exit 1 · Structure no. 200091005N13022

Built
1960
65 years old, rebuilt 2011
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
19,400
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over I 91 NB over Maple ST is a prestressed concrete continuous tee beam carrying I 00091 Ml over I 91 NB over Maple ST in Windham County, Vermont. It was built in 1960 and reconstructed in 2011, so it is 65 years old, older than the Vermont average of 60.8 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 19,400 vehicles a day, roughly 8% of them trucks, projected to reach 20,370 by 2028. The structure is 142 ft (43.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 00091 Ml
CrossesI 91 NB over Maple ST
Location0.7 MI N Exit 1
RouteInterstate 91
StateVermont
Coordinates42.84454, -72.57299
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating55 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span47 ft (14.3 m)
Deck width47 ft (14.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,400 (2018)
Projected traffic20,370 by 2028
Trucks8%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 00091 Ml over I 91 NB over Maple ST built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2011.

What condition is I 00091 Ml over I 91 NB over Maple 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 May 2024.

How much traffic does I 00091 Ml over I 91 NB over Maple ST carry?

About 19,400 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is I 00091 Ml over I 91 NB over Maple ST?

The structure is 142 ft (43.3 m) long with a longest span of 47 ft (14.3 m) and a deck 47 ft wide.

Who owns I 00091 Ml over I 91 NB over Maple ST?

It is owned by the State Highway Agency.