US Bridges

I 00089 Ml over I 89 over Vt 15

Fair

Chittenden County, Vermont · I 89 Exit 15 · Structure no. 200089072N04182

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
167 ft
3 main spans
Daily traffic
56,400
2018 count
Owner
State
State Highway Agency

About this bridge

I 00089 Ml over I 89 over Vt 15 is a steel stringer/multi-beam or girder carrying I 00089 Ml over I 89 over Vt 15 in Chittenden County, Vermont. It was built in 1962, so it is 63 years old, older 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 5 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 56,400 vehicles a day, roughly 8% of them trucks, projected to reach 59,220 by 2028. The structure is 167 ft (50.9 m) long and 35 ft wide.

CarriesI 00089 Ml
CrossesI 89 over Vt 15
LocationI 89 Exit 15
RouteInterstate 89
StateVermont
Coordinates44.49324, -73.17314
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span92 ft (28 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,400 (2018)
Projected traffic59,220 by 2028
Trucks8%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.1 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 00089 Ml over I 89 over Vt 15 built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 00089 Ml over I 89 over Vt 15 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 June 2024.

How much traffic does I 00089 Ml over I 89 over Vt 15 carry?

About 56,400 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is I 00089 Ml over I 89 over Vt 15?

The structure is 167 ft (50.9 m) long with a longest span of 92 ft (28 m) and a deck 35 ft wide.

Who owns I 00089 Ml over I 89 over Vt 15?

It is owned by the State Highway Agency.