US Bridges

C3021 over Brush Brook

Good

Chittenden County, Vermont · 0.01 MI to JCT W C3 TH22 · Structure no. 100408003404081

Built
2004
21 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
20
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3021 over Brush Brook is a concrete slab carrying C3021 over Brush Brook in Chittenden County, Vermont. It was built in 2004, so it is 21 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 21 by 2029. The structure is 31 ft (9.4 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3021
CrossesBrush Brook
Location0.01 MI to JCT W C3 TH22
StateVermont
Coordinates44.29853, -72.94933
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic21 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C3021 over Brush Brook built?

It was built in 2004, making it 21 years old in 2025.

What condition is C3021 over Brush Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does C3021 over Brush Brook carry?

About 20 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3021 over Brush Brook?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 17 ft wide.

Who owns C3021 over Brush Brook?

It is owned by the Town or Township Highway Agency.