US Bridges

County Rte. 21 over South Fk of S.Br.Potomac

Poor

Pendleton County, West Virginia · 0.02 Mi. S. Jct. CR 25 · Structure no. 00000000036A057

Built
1986
39 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
187 ft
3 main spans
Daily traffic
400
2022 count
Owner
State
State Highway Agency

About this bridge

County Rte. 21 over South Fk of S.Br.Potomac is a prestressed concrete box beam or girders - multiple carrying County Rte. 21 over South Fk of S.Br.Potomac in Pendleton County, West Virginia. It was built in 1986, so it is 39 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 400 vehicles a day, roughly 6% of them trucks, projected to reach 468 by 2042. The structure is 187 ft (56.9 m) long and 24 ft wide.

Location

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CarriesCounty Rte. 21
CrossesSouth Fk of S.Br.Potomac
Location0.02 Mi. S. Jct. CR 25
RouteCounty Highway 2100
CountyPendleton County
StateWest Virginia
Coordinates38.51301, -79.3106
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating58 US tons
Inventory rating29 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length187 ft (56.9 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic468 by 2042
Trucks6%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Rte. 21 over South Fk of S.Br.Potomac built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Rte. 21 over South Fk of S.Br.Potomac in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does County Rte. 21 over South Fk of S.Br.Potomac carry?

About 400 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is County Rte. 21 over South Fk of S.Br.Potomac?

The structure is 187 ft (56.9 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns County Rte. 21 over South Fk of S.Br.Potomac?

It is owned by the State Highway Agency.