US Bridges

C3060 over Lamoille Valley RR

FairPosted for load

Caledonia County, Vermont · 0.1 MI JCT TH 60 + TH 61 · Structure no. 100303002903031

Built
1920
105 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
1 main span
Daily traffic
100
2019 count
Owner
State
State Highway Agency

About this bridge

C3060 over Lamoille Valley RR is a wood or timber stringer/multi-beam or girder carrying C3060 over Lamoille Valley RR in Caledonia County, Vermont. It was built in 1920, so it is 105 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 105 by 2029. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesC3060
CrossesLamoille Valley RR
Location0.1 MI JCT TH 60 + TH 61
CountyCaledonia County
StateVermont
Coordinates44.4126, -72.11693
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating15 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic105 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$463,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was C3060 over Lamoille Valley RR built?

It was built in 1920, making it 105 years old in 2025.

What condition is C3060 over Lamoille Valley RR 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 October 2023.

How much traffic does C3060 over Lamoille Valley RR carry?

About 100 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3060 over Lamoille Valley RR?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 16 ft wide.

Who owns C3060 over Lamoille Valley RR?

It is owned by the State Highway Agency.