Structure 38A056 · Pocahontas County, WV

Wv 39 over Knapp Creek

Carries Wv 39 over Knapp Creek, 0.73 Mi E Jct CR 39/3.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT256 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

256 ft end to end, longest span 83 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199432 years old
Length255.6 ft77.9 m
Daily traffic950counted 2022
Last inspectedMay 2024every 24 months

Location

StateWest Virginia
CountyPocahontas
Location0.73 Mi E Jct CR 39/3
CarriesWv 39
CrossesKnapp Creek
Coordinates38.18251, -80.00580

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length255.6 ft (77.9 m)
Max Span83.3 ft (25.4 m)
Deck Width39.4 ft (12 m)
Deck Area934.8 sq m
Main Spans3
Year Built1994

Traffic

Avg Daily Traffic950 (2022)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number00000000038A056

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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