US Bridges

C3012 over Ridley Brook

Poor

Washington County, Vermont · 0.5 MI to JCT W CL3 TH5 · Structure no. 101206003712061

Built
1967
58 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
200
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3012 over Ridley Brook is a steel stringer/multi-beam or girder carrying C3012 over Ridley Brook in Washington County, Vermont. It was built in 1967, so it is 58 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 210 by 2029. The structure is 33 ft (10.1 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3012
CrossesRidley Brook
Location0.5 MI to JCT W CL3 TH5
StateVermont
Coordinates44.33765, -72.83306
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2019)
Projected traffic210 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$550,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3012 over Ridley Brook built?

It was built in 1967, making it 58 years old in 2025.

What condition is C3012 over Ridley Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does C3012 over Ridley Brook carry?

About 200 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3012 over Ridley Brook?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 23 ft wide.

Who owns C3012 over Ridley Brook?

It is owned by the Town or Township Highway Agency.