US Bridges

I 00089 Ml over I 89 over TH No 12

Good

Chittenden County, Vermont · 1.8 MI S Exit 18 · Structure no. 200089008304102

Built
1967
58 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
23,400
2018 count
Owner
State
State Highway Agency

About this bridge

I 00089 Ml over I 89 over TH No 12 is a concrete slab carrying I 00089 Ml over I 89 over TH No 12 in Chittenden County, Vermont. It was built in 1967, so it is 58 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 23,400 vehicles a day, roughly 13% of them trucks, projected to reach 24,570 by 2028. The structure is 25 ft (7.6 m) long and 76 ft wide.

CarriesI 00089 Ml
CrossesI 89 over TH No 12
Location1.8 MI S Exit 18
RouteInterstate 89
StateVermont
Coordinates44.68028, -73.12935
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
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width76 ft (23.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,400 (2018)
Projected traffic24,570 by 2028
Trucks13%
Lanes on structure4
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 00089 Ml over I 89 over TH No 12 built?

It was built in 1967, making it 58 years old in 2025.

What condition is I 00089 Ml over I 89 over TH No 12 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 00089 Ml over I 89 over TH No 12 carry?

About 23,400 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00089 Ml over I 89 over TH No 12?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 76 ft wide.

Who owns I 00089 Ml over I 89 over TH No 12?

It is owned by the State Highway Agency.