US Bridges

C3007 over Kenfield Brook

Fair

Lamoille County, Vermont · 0.2 MI to JCT W CL3 TH23 · Structure no. 100807003708071

Built
1953
72 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
34 ft
1 main span
Daily traffic
350
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3007 over Kenfield Brook is a concrete tee beam carrying C3007 over Kenfield Brook in Lamoille County, Vermont. It was built in 1953, so it is 72 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 350 vehicles a day, roughly 2% of them trucks, projected to reach 368 by 2029. The structure is 34 ft (10.4 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesC3007
CrossesKenfield Brook
Location0.2 MI to JCT W CL3 TH23
CountyLamoille County
StateVermont
Coordinates44.56034, -72.63102
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2019)
Projected traffic368 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$327,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3007 over Kenfield Brook built?

It was built in 1953, making it 72 years old in 2025.

What condition is C3007 over Kenfield Brook 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 September 2023.

How much traffic does C3007 over Kenfield Brook carry?

About 350 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3007 over Kenfield Brook?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 23 ft wide.

Who owns C3007 over Kenfield Brook?

It is owned by the Town or Township Highway Agency.