US Bridges

County Route 46/4 over Flat Fork

Good

Roane County, West Virginia · 0.01 MI South of CR 46 · Structure no. 00000000044A089

Built
1986
39 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
20
2022 count
Owner
State
State Highway Agency

About this bridge

County Route 46/4 over Flat Fork is a prestressed concrete box beam or girders - multiple carrying County Route 46/4 over Flat Fork in Roane County, West Virginia. It was built in 1986, so it is 39 years old, younger than the West Virginia average of 44.7 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, projected to reach 31 by 2042. The structure is 36 ft (11 m) long and 18 ft wide.

Location

Open in Google Maps
CarriesCounty Route 46/4
CrossesFlat Fork
Location0.01 MI South of CR 46
RouteCounty Highway 464
CountyRoane County
StateWest Virginia
Coordinates38.67577, -81.29922
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 protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98 US tons
Inventory rating67 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width18 ft (5.5 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic31 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$600,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Route 46/4 over Flat Fork built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Route 46/4 over Flat Fork 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 February 2024.

How much traffic does County Route 46/4 over Flat Fork carry?

About 20 vehicles per day (2022 count).

How long is County Route 46/4 over Flat Fork?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 18 ft wide.

Who owns County Route 46/4 over Flat Fork?

It is owned by the State Highway Agency.