US Bridges

C3023 over Kenfield Brook

Fair

Lamoille County, Vermont · @ JCT W CL3 TH30 · Structure no. 100807004008071

Built
1939
86 years old, rebuilt 1975
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
1 main span
Daily traffic
400
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3023 over Kenfield Brook is a steel stringer/multi-beam or girder carrying C3023 over Kenfield Brook in Lamoille County, Vermont. It was built in 1939 and reconstructed in 1975, so it is 86 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 420 by 2029. The structure is 84 ft (25.6 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesC3023
CrossesKenfield Brook
Location@ JCT W CL3 TH30
CountyLamoille County
StateVermont
Coordinates44.55917, -72.63924
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 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 rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span82 ft (25 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic420 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$741,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3023 over Kenfield Brook built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1975.

What condition is C3023 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 April 2024.

How much traffic does C3023 over Kenfield Brook carry?

About 400 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3023 over Kenfield Brook?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25 m) and a deck 24 ft wide.

Who owns C3023 over Kenfield Brook?

It is owned by the Town or Township Highway Agency.