US Bridges

Wv 39 over Knapp Creek

Fair

Pocahontas County, West Virginia · 0.73 MI E JCT CR 39/3 · Structure no. 00000000038A056

Built
1994
31 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
256 ft
3 main spans
Daily traffic
950
2022 count
Owner
State
State Highway Agency

About this bridge

Wv 39 over Knapp Creek is a steel continuous stringer/multi-beam or girder carrying Wv 39 over Knapp Creek in Pocahontas County, West Virginia. It was built in 1994, so it is 31 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 950 vehicles a day, roughly 11% of them trucks, projected to reach 1,233 by 2042. The structure is 256 ft (77.9 m) long and 39 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

Location

Open in Google Maps
CarriesWv 39
CrossesKnapp Creek
Location0.73 MI E JCT CR 39/3
RouteState Highway 3900
CountyPocahontas County
StateWest Virginia
Coordinates38.18251, -80.0058
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length256 ft (77.9 m)
Longest span83 ft (25.4 m)
Deck width39 ft (12 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2022)
Projected traffic1,233 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wv 39 over Knapp Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Wv 39 over Knapp Creek 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 May 2024.

How much traffic does Wv 39 over Knapp Creek carry?

About 950 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Wv 39 over Knapp Creek?

The structure is 256 ft (77.9 m) long with a longest span of 83 ft (25.4 m) and a deck 39 ft wide.

Who owns Wv 39 over Knapp Creek?

It is owned by the State Highway Agency.