US Bridges

C3002 over Mill Brook

Good

Essex County, Vermont · 1.0 MI to JCT W VT102 · Structure no. 100503000205031

Built
1919
106 years old, rebuilt 1996
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
20
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3002 over Mill Brook is a concrete slab carrying C3002 over Mill Brook in Essex County, Vermont. It was built in 1919 and reconstructed in 1996, so it is 106 years old, older 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 7 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 24 ft (7.3 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3002
CrossesMill Brook
Location1.0 MI to JCT W VT102
StateVermont
Coordinates44.78641, -71.60472
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating75 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic21 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 C3002 over Mill Brook built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1996.

What condition is C3002 over Mill 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 August 2023.

How much traffic does C3002 over Mill Brook carry?

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

How long is C3002 over Mill Brook?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 18 ft wide.

Who owns C3002 over Mill Brook?

It is owned by the Town or Township Highway Agency.