US Bridges

I 00091 Ml over Clyde River

Fair

Orleans County, Vermont · 0.3 MI S Exit 28 · Structure no. 200091110N10072

Built
1970
55 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
303 ft
3 main spans
Daily traffic
5,700
2018 count
Owner
State
State Highway Agency

About this bridge

I 00091 Ml over Clyde River is a steel continuous stringer/multi-beam or girder carrying I 00091 Ml over Clyde River in Orleans County, Vermont. It was built in 1970, so it is 55 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 5,700 vehicles a day, roughly 13% of them trucks, projected to reach 5,985 by 2028. The structure is 303 ft (92.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 00091 Ml
CrossesClyde River
Location0.3 MI S Exit 28
RouteInterstate 91
StateVermont
Coordinates44.94764, -72.15417
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span116 ft (35.4 m)
Deck width43 ft (13.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2018)
Projected traffic5,985 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 00091 Ml over Clyde River built?

It was built in 1970, making it 55 years old in 2025.

What condition is I 00091 Ml over Clyde 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 June 2024.

How much traffic does I 00091 Ml over Clyde River carry?

About 5,700 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is I 00091 Ml over Clyde River?

The structure is 303 ft (92.4 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.

Who owns I 00091 Ml over Clyde River?

It is owned by the State Highway Agency.