US Bridges

C3050 over Calendar Brook

FairPosted for load

Caledonia County, Vermont · 0.05 MI JCT TH 50 + TH 1 · Structure no. 100314001303141

Built
1961
64 years old, rebuilt 1974
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3050 over Calendar Brook is a steel stringer/multi-beam or girder carrying C3050 over Calendar Brook in Caledonia County, Vermont. It was built in 1961 and reconstructed in 1974, so it is 64 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 11 by 2029. The structure is 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3050
CrossesCalendar Brook
Location0.05 MI JCT TH 50 + TH 1
CountyCaledonia County
StateVermont
Coordinates44.61013, -72.00403
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic11 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$529,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3050 over Calendar Brook built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1974.

What condition is C3050 over Calendar 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 2024.

How much traffic does C3050 over Calendar Brook carry?

About 10 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3050 over Calendar Brook?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 16 ft wide.

Who owns C3050 over Calendar Brook?

It is owned by the Town or Township Highway Agency.