Structure 28A338 · Mercer County, WV

County Route 71/4 over Bluestone River

Carries County Route 71/4 over Bluestone River, 0.01 Miles S Of Co. 71/13.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT103 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

103 ft end to end. Lengths and the car 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 box-beam bridge.

Built20206 years old
Length103.3 ft31.5 m
Daily traffic40counted 2020
Last inspectedDecember 2022every 24 months

Location

StateWest Virginia
CountyMercer
Location0.01 Miles S Of Co. 71/13
CarriesCounty Route 71/4
CrossesBluestone River
Coordinates37.38307, -81.19047

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length103.3 ft (31.5 m)
Max Span100.1 ft (30.5 m)
Deck Width21.7 ft (6.6 m)
Deck Area207.9 sq m
Main Spans1
Year Built2020

Traffic

Avg Daily Traffic40 (2020)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000028A338

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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