US Bridges

C3021 over Lamoille River

Fair

Orleans County, Vermont · 0.02 MI E of JCT VT16 · Structure no. 101009002110091

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
140
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3021 over Lamoille River is a steel culvert carrying C3021 over Lamoille River in Orleans County, Vermont. It was built in 1976, so it is 49 years old, younger 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 140 vehicles a day, roughly 2% of them trucks, projected to reach 147 by 2029. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3021
CrossesLamoille River
Location0.02 MI E of JCT VT16
StateVermont
Coordinates44.59398, -72.22968
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2019)
Projected traffic147 by 2029
Trucks2%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C3021 over Lamoille River built?

It was built in 1976, making it 49 years old in 2025.

What condition is C3021 over Lamoille 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 August 2023.

How much traffic does C3021 over Lamoille River carry?

About 140 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3021 over Lamoille River?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m).

Who owns C3021 over Lamoille River?

It is owned by the Town or Township Highway Agency.