US Bridges

I 00091 Ml over I 91 over TH No 68

Fair

Caledonia County, Vermont · 2.8 MI N Exit 20 · Structure no. 200091084N03112

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
8,800
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over I 91 over TH No 68 is a prestressed concrete stringer/multi-beam or girder carrying I 00091 Ml over I 91 over TH No 68 in Caledonia County, Vermont. It was built in 1975, so it is 50 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 8,800 vehicles a day, roughly 13% of them trucks, projected to reach 9,240 by 2028. The structure is 92 ft (28 m) long and 43 ft wide.

CarriesI 00091 Ml
CrossesI 91 over TH No 68
Location2.8 MI N Exit 20
RouteInterstate 91
StateVermont
Coordinates44.41574, -72.03111
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2018)
Projected traffic9,240 by 2028
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 68 built?

It was built in 1975, making it 50 years old in 2025.

What condition is I 00091 Ml over I 91 over TH No 68 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 May 2024.

How much traffic does I 00091 Ml over I 91 over TH No 68 carry?

About 8,800 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00091 Ml over I 91 over TH No 68?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns I 00091 Ml over I 91 over TH No 68?

It is owned by the State Highway Agency.