US Bridges

CO 15/4 over Bluestone River

Fair

Mercer County, West Virginia · 0.05 Mile South of CR 15 · Structure no. 00000000028A332

Built
2012
13 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
197 ft
1 main span
Daily traffic
90
2022 count
Owner
State
State Highway Agency

About this bridge

CO 15/4 over Bluestone River is a steel continuous stringer/multi-beam or girder carrying CO 15/4 over Bluestone River in Mercer County, West Virginia. It was built in 2012, so it is 13 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 6 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 90 vehicles a day, roughly 6% of them trucks, projected to reach 108 by 2042. The structure is 197 ft (60.1 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCO 15/4
CrossesBluestone River
Location0.05 Mile South of CR 15
RouteCounty Highway 154
CountyMercer County
StateWest Virginia
Coordinates37.34541, -81.25998
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHL 93
Structure length197 ft (60.1 m)
Longest span108 ft (32.8 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic108 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 CO 15/4 over Bluestone River built?

It was built in 2012, making it 13 years old in 2025.

What condition is CO 15/4 over Bluestone 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 October 2024.

How much traffic does CO 15/4 over Bluestone River carry?

About 90 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is CO 15/4 over Bluestone River?

The structure is 197 ft (60.1 m) long with a longest span of 108 ft (32.8 m) and a deck 22 ft wide.

Who owns CO 15/4 over Bluestone River?

It is owned by the State Highway Agency.