US Bridges

C3006 over N. Br. Black River

Good

Windsor County, Vermont · 0.02 MI to JCT W VT106 · Structure no. 101420006314201

Built
1968
57 years old, rebuilt 2024
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
100
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3006 over N. Br. Black River is a prestressed concrete slab carrying C3006 over N. Br. Black River in Windsor County, Vermont. It was built in 1968 and reconstructed in 2024, so it is 57 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 105 by 2029. The structure is 36 ft (11 m) long and 19 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesC3006
CrossesN. Br. Black River
Location0.02 MI to JCT W VT106
CountyWindsor County
StateVermont
Coordinates43.43366, -72.52748
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating31 US tons
Inventory rating18 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic105 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$507,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3006 over N. Br. Black River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2024.

What condition is C3006 over N. Br. Black River 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 2024.

How much traffic does C3006 over N. Br. Black River carry?

About 100 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3006 over N. Br. Black River?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 19 ft wide.

Who owns C3006 over N. Br. Black River?

It is owned by the Town or Township Highway Agency.