US Bridges

C3018 over Black River

FairPosted for load

Orleans County, Vermont · 0.1 MI to JCT W VT14 · Structure no. 101006002210061

Built
1972
53 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel
Length
60 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3018 over Black River is a steel girder and floorbeam system carrying C3018 over Black River in Orleans County, Vermont. It was built in 1972, so it is 53 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. 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 60 ft (18.3 m) long and 15 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesC3018
CrossesBlack River
Location0.1 MI to JCT W VT14
CountyOrleans County
StateVermont
Coordinates44.68779, -72.39697
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating22 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length60 ft (18.3 m)
Longest span55 ft (16.8 m)
Deck width15 ft (4.5 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

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 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$361,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3018 over Black River built?

It was built in 1972, making it 53 years old in 2025.

What condition is C3018 over Black River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does C3018 over Black River carry?

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

How long is C3018 over Black River?

The structure is 60 ft (18.3 m) long with a longest span of 55 ft (16.8 m) and a deck 15 ft wide.

Who owns C3018 over Black River?

It is owned by the Town or Township Highway Agency.