US Bridges

C3020 over Black River

GoodPosted for load

Windsor County, Vermont · 0.04 MI to JCT W VT131 · Structure no. 101420006614201

Built
1840
185 years old, rebuilt 2007
Condition
Good
inspected November 2023
Type
Truss - Thru
Wood or Timber
Length
130 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3020 over Black River is a wood or timber truss - thru carrying C3020 over Black River in Windsor County, Vermont. It was built in 1840 and reconstructed in 2007, so it is 185 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 11 by 2029. The structure is 130 ft (39.6 m) long and 14 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesC3020
CrossesBlack River
Location0.04 MI to JCT W VT131
StateVermont
Coordinates43.3985, -72.52209
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating6 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length130 ft (39.6 m)
Longest span100 ft (30.5 m)
Deck width14 ft (4.4 m)
Roadway width13 ft (4 m)
Vertical clearance over deck10 ft (3 m)

Traffic and service

Average daily traffic10 (2019)
Projected traffic11 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$903,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3020 over Black River built?

It was built in 1840, making it 185 years old in 2025. It was reconstructed in 2007.

What condition is C3020 over 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 November 2023.

How much traffic does C3020 over Black River carry?

About 10 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3020 over Black River?

The structure is 130 ft (39.6 m) long with a longest span of 100 ft (30.5 m) and a deck 14 ft wide.

Who owns C3020 over Black River?

It is owned by the Town or Township Highway Agency.