US Bridges

I 00091 Ml over Ottauquechee River

Fair

Windsor County, Vermont · 3.5 MI S I 91-I 89 Inters · Structure no. 200091040S14092

Built
1966
59 years old
Condition
Fair
inspected May 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
316 ft
2 main spans
Daily traffic
19,800
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over Ottauquechee River is a steel continuous girder and floorbeam system carrying I 00091 Ml over Ottauquechee River in Windsor County, Vermont. It was built in 1966, so it is 59 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 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 19,800 vehicles a day, roughly 13% of them trucks, projected to reach 20,790 by 2028. The structure is 316 ft (96.3 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 00091 Ml
CrossesOttauquechee River
Location3.5 MI S I 91-I 89 Inters
RouteInterstate 91
StateVermont
Coordinates43.59453, -72.35053
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating82 US tons
Inventory rating46 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span155 ft (47.2 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,800 (2018)
Projected traffic20,790 by 2028
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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$4 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 00091 Ml over Ottauquechee River built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 00091 Ml over Ottauquechee River 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 Ottauquechee River carry?

About 19,800 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00091 Ml over Ottauquechee River?

The structure is 316 ft (96.3 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.

Who owns I 00091 Ml over Ottauquechee River?

It is owned by the State Highway Agency.