US Bridges

C3023 over Andover Brook

Fair

Windsor County, Vermont · 0.1 MI to JCT W CL2 TH1 · Structure no. 101401002514011

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
150
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3023 over Andover Brook is a steel culvert carrying C3023 over Andover Brook in Windsor County, Vermont. It was built in 1962, so it is 63 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.

It carries about 150 vehicles a day, roughly 2% of them trucks, projected to reach 158 by 2029. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3023
CrossesAndover Brook
Location0.1 MI to JCT W CL2 TH1
CountyWindsor County
StateVermont
Coordinates43.27929, -72.69604
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2019)
Projected traffic158 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 C3023 over Andover Brook built?

It was built in 1962, making it 63 years old in 2025.

What condition is C3023 over Andover 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 October 2023.

How much traffic does C3023 over Andover Brook carry?

About 150 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3023 over Andover Brook?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m).

Who owns C3023 over Andover Brook?

It is owned by the Town or Township Highway Agency.