US Bridges

C3004 over Cold Brook

Good

Windsor County, Vermont · 0.2 MI JCT TH 4 + TH 1 · Structure no. 101405004314051

Built
1974
51 years old, rebuilt 2003
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
50
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3004 over Cold Brook is a prestressed concrete slab carrying C3004 over Cold Brook in Windsor County, Vermont. It was built in 1974 and reconstructed in 2003, so it is 51 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 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 53 by 2029. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesC3004
CrossesCold Brook
Location0.2 MI JCT TH 4 + TH 1
StateVermont
Coordinates43.61746, -72.66787
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2019)
Projected traffic53 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 C3004 over Cold Brook built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2003.

What condition is C3004 over Cold 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 September 2023.

How much traffic does C3004 over Cold Brook carry?

About 50 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3004 over Cold Brook?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 16 ft wide.

Who owns C3004 over Cold Brook?

It is owned by the Town or Township Highway Agency.