US Bridges

County Route 10 over Mare Run

Fair

Lewis County, West Virginia · 0.01 MI W of CO 10/9 Sls · Structure no. 00000000021A211

Built
1924
101 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
38 ft
1 main span
Daily traffic
700
2018 count
Owner
State
State Highway Agency

About this bridge

County Route 10 over Mare Run is a concrete arch - deck carrying County Route 10 over Mare Run in Lewis County, West Virginia. It was built in 1924, so it is 101 years old, older 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 700 vehicles a day, roughly 5% of them trucks, projected to reach 795 by 2038. The structure is 38 ft (11.6 m) long and 27 ft wide.

Location

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CarriesCounty Route 10
CrossesMare Run
Location0.01 MI W of CO 10/9 Sls
RouteCounty Highway 1000
CountyLewis County
StateWest Virginia
Coordinates39.10653, -80.51671
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52 US tons
Inventory rating24 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span24 ft (7.4 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2018)
Projected traffic795 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-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$650,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Route 10 over Mare Run built?

It was built in 1924, making it 101 years old in 2025.

What condition is County Route 10 over Mare Run 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 April 2023.

How much traffic does County Route 10 over Mare Run carry?

About 700 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is County Route 10 over Mare Run?

The structure is 38 ft (11.6 m) long with a longest span of 24 ft (7.4 m) and a deck 27 ft wide.

Who owns County Route 10 over Mare Run?

It is owned by the State Highway Agency.