US Bridges

I 00089 Ml over I 89 over Win. RIV.+TH16

Fair

Chittenden County, Vermont · 0.3 MI N Exit 11 · Structure no. 200089058S04112

Built
1962
63 years old
Condition
Fair
inspected May 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
558 ft
3 main spans
Daily traffic
36,300
2018 count
Owner
State
State Highway Agency

About this bridge

I 00089 Ml over I 89 over Win. RIV.+TH16 is a steel continuous girder and floorbeam system carrying I 00089 Ml over I 89 over Win. RIV.+TH16 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 36,300 vehicles a day, roughly 13% of them trucks, projected to reach 38,115 by 2028. The structure is 558 ft (170.1 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 00089 Ml
CrossesI 89 over Win. RIV.+TH16
Location0.3 MI N Exit 11
RouteInterstate 89
CountyChittenden County
StateVermont
Coordinates44.4227, -73.01625
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating41 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length558 ft (170.1 m)
Longest span230 ft (70.1 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,300 (2018)
Projected traffic38,115 by 2028
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 00089 Ml over I 89 over Win. RIV.+TH16 built?

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

What condition is I 00089 Ml over I 89 over Win. RIV.+TH16 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 00089 Ml over I 89 over Win. RIV.+TH16 carry?

About 36,300 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00089 Ml over I 89 over Win. RIV.+TH16?

The structure is 558 ft (170.1 m) long with a longest span of 230 ft (70.1 m) and a deck 35 ft wide.

Who owns I 00089 Ml over I 89 over Win. RIV.+TH16?

It is owned by the State Highway Agency.