US Bridges

C3051 over Lamoille River

Fair

Franklin County, Vermont · @ JCT W VT104 · Structure no. 100604002706041

Built
1930
95 years old, rebuilt 1999
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel
Length
209 ft
1 main span
Daily traffic
690
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3051 over Lamoille River is a steel truss - thru carrying C3051 over Lamoille River in Franklin County, Vermont. It was built in 1930 and reconstructed in 1999, so it is 95 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 690 vehicles a day, roughly 8% of them trucks, projected to reach 725 by 2029. The structure is 209 ft (63.7 m) long and 17 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesC3051
CrossesLamoille River
Location@ JCT W VT104
CountyFranklin County
StateVermont
Coordinates44.6501, -72.98848
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating87 US tons
Inventory rating51 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length209 ft (63.7 m)
Longest span205 ft (62.5 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic690 (2019)
Projected traffic725 by 2029
Trucks8%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3051 over Lamoille River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1999.

What condition is C3051 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 2024.

How much traffic does C3051 over Lamoille River carry?

About 690 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is C3051 over Lamoille River?

The structure is 209 ft (63.7 m) long with a longest span of 205 ft (62.5 m) and a deck 17 ft wide.

Who owns C3051 over Lamoille River?

It is owned by the Town or Township Highway Agency.