US Bridges

Vt 00105 Ml over Missisquoi River

Fair

Franklin County, Vermont · 0.3 MI W Jct. VT.78 · Structure no. 200034001006142

Built
1947
78 years old, rebuilt 1980
Condition
Fair
inspected July 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
605 ft
4 main spans
Daily traffic
5,500
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00105 Ml over Missisquoi River is a steel continuous girder and floorbeam system carrying Vt 00105 Ml over Missisquoi River in Franklin County, Vermont. It was built in 1947 and reconstructed in 1980, so it is 78 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 5,500 vehicles a day, roughly 9% of them trucks, projected to reach 5,775 by 2028. The structure is 605 ft (184.4 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesVt 00105 Ml
CrossesMissisquoi River
Location0.3 MI W Jct. VT.78
RouteState Highway 105
StateVermont
Coordinates44.90181, -72.95155
Functional classRural Minor Arterial

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.
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 inspectionJuly 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length605 ft (184.4 m)
Longest span175 ft (53.3 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2018)
Projected traffic5,775 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo
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$6.7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00105 Ml over Missisquoi River built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1980.

What condition is Vt 00105 Ml over Missisquoi 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 July 2023.

How much traffic does Vt 00105 Ml over Missisquoi River carry?

About 5,500 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00105 Ml over Missisquoi River?

The structure is 605 ft (184.4 m) long with a longest span of 175 ft (53.3 m) and a deck 31 ft wide.

Who owns Vt 00105 Ml over Missisquoi River?

It is owned by the State Highway Agency.