US Bridges

I 00091 Ml over I 91 over TH No 29

Good

Windham County, Vermont · 2.3 MI S Exit 1 · Structure no. 200091002N13072

Built
1958
67 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
1 main span
Daily traffic
18,300
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over I 91 over TH No 29 is a steel stringer/multi-beam or girder carrying I 00091 Ml over I 91 over TH No 29 in Windham County, Vermont. It was built in 1958, so it is 67 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 18,300 vehicles a day, roughly 13% of them trucks, projected to reach 19,215 by 2028. The structure is 99 ft (30.2 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 00091 Ml
CrossesI 91 over TH No 29
Location2.3 MI S Exit 1
RouteInterstate 91
StateVermont
Coordinates42.80474, -72.56454
Functional classRural 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.
Superstructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span96 ft (29.3 m)
Deck width49 ft (15 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,300 (2018)
Projected traffic19,215 by 2028
Trucks13%
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 over TH No 29 built?

It was built in 1958, making it 67 years old in 2025.

What condition is I 00091 Ml over I 91 over TH No 29 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 over TH No 29 carry?

About 18,300 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00091 Ml over I 91 over TH No 29?

The structure is 99 ft (30.2 m) long with a longest span of 96 ft (29.3 m) and a deck 49 ft wide.

Who owns I 00091 Ml over I 91 over TH No 29?

It is owned by the State Highway Agency.