US Bridges

Vt 0105A Alt over Missisquoi River

GoodPosted for load

Franklin County, Vermont · 1.8 MI N Jct. VT.105 · Structure no. 200611000306111

Built
1929
96 years old, rebuilt 2019
Condition
Good
inspected September 2023
Type
Truss - Thru
Steel
Length
205 ft
1 main span
Daily traffic
220
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 0105A Alt over Missisquoi River is a steel truss - thru carrying Vt 0105A Alt over Missisquoi River in Franklin County, Vermont. It was built in 1929 and reconstructed in 2019, so it is 96 years old, older than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 220 vehicles a day, roughly 5% of them trucks, projected to reach 231 by 2028. The structure is 205 ft (62.5 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesVt 0105A Alt
CrossesMissisquoi River
Location1.8 MI N Jct. VT.105
RouteState Highway 105A
CountyFranklin County
StateVermont
Coordinates45.01176, -72.58814
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating22 US tons
Inventory rating13 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOther
Main spans1 (+1 approach)
Design loadH 15
Structure length205 ft (62.5 m)
Longest span150 ft (45.7 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic220 (2018)
Projected traffic231 by 2028
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.8 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 0105A Alt over Missisquoi River built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 2019.

What condition is Vt 0105A Alt over Missisquoi River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Vt 0105A Alt over Missisquoi River carry?

About 220 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Vt 0105A Alt over Missisquoi River?

The structure is 205 ft (62.5 m) long with a longest span of 150 ft (45.7 m) and a deck 24 ft wide.

Who owns Vt 0105A Alt over Missisquoi River?

It is owned by the State Highway Agency.