US Bridges

I 00091 Ml over I 91 over TH No 17

Good

Caledonia County, Vermont · 3.5 MI N Exit 24 I 91 · Structure no. 200091098N03172

Built
1972
53 years old
Condition
Good
inspected June 2024
Type
Frame
Concrete
Length
24 ft
1 main span
Daily traffic
4,800
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over I 91 over TH No 17 is a concrete frame carrying I 00091 Ml over I 91 over TH No 17 in Caledonia County, Vermont. It was built in 1972, so it is 53 years old, younger 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 4,800 vehicles a day, roughly 13% of them trucks, projected to reach 5,040 by 2028. The structure is 24 ft (7.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 00091 Ml
CrossesI 91 over TH No 17
Location3.5 MI N Exit 24 I 91
RouteInterstate 91
StateVermont
Coordinates44.58902, -72.07947
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width38 ft (11.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2018)
Projected traffic5,040 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 17 built?

It was built in 1972, making it 53 years old in 2025.

What condition is I 00091 Ml over I 91 over TH No 17 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 June 2024.

How much traffic does I 00091 Ml over I 91 over TH No 17 carry?

About 4,800 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00091 Ml over I 91 over TH No 17?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 38 ft wide.

Who owns I 00091 Ml over I 91 over TH No 17?

It is owned by the State Highway Agency.