US Bridges

C3031 over Kingsbury Br Winooski R

Fair

Washington County, Vermont · 0.01 MI to JCT W C3 TH30 · Structure no. 101207002112071

Built
1919
106 years old, rebuilt 1979
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
30
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3031 over Kingsbury Br Winooski R is a prestressed concrete tee beam carrying C3031 over Kingsbury Br Winooski R in Washington County, Vermont. It was built in 1919 and reconstructed in 1979, so it is 106 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 6 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 32 by 2029. The structure is 40 ft (12.2 m) long and 15 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3031
CrossesKingsbury Br Winooski R
Location0.01 MI to JCT W C3 TH30
CountyWashington County
StateVermont
Coordinates44.28366, -72.45344
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2019)
Projected traffic32 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$267,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3031 over Kingsbury Br Winooski R built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1979.

What condition is C3031 over Kingsbury Br Winooski R 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 August 2023.

How much traffic does C3031 over Kingsbury Br Winooski R carry?

About 30 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3031 over Kingsbury Br Winooski R?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 15 ft wide.

Who owns C3031 over Kingsbury Br Winooski R?

It is owned by the Town or Township Highway Agency.