US Bridges

Preston CO Rt 21 over Bull Run

Fair

Preston County, West Virginia · 0.15 MI North CO Rt 21/4 · Structure no. 00000000039A045

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
250
2022 count
Owner
State
State Highway Agency

About this bridge

Preston CO Rt 21 over Bull Run is a prestressed concrete box beam or girders - multiple carrying Preston CO Rt 21 over Bull Run in Preston County, West Virginia. It was built in 1989, so it is 36 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 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 250 vehicles a day, roughly 7% of them trucks, projected to reach 350 by 2041. The structure is 32 ft (9.8 m) long and 21 ft wide.

Location

Open in Google Maps
CarriesPreston CO Rt 21
CrossesBull Run
Location0.15 MI North CO Rt 21/4
RouteCounty Highway 2100
CountyPreston County
StateWest Virginia
Coordinates39.57109, -79.77615
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating98 US tons
Inventory rating62.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length32 ft (9.8 m)
Longest span31 ft (9.3 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic350 by 2041
Trucks7%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$409,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Preston CO Rt 21 over Bull Run built?

It was built in 1989, making it 36 years old in 2025.

What condition is Preston CO Rt 21 over Bull 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 November 2023.

How much traffic does Preston CO Rt 21 over Bull Run carry?

About 250 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Preston CO Rt 21 over Bull Run?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.3 m) and a deck 21 ft wide.

Who owns Preston CO Rt 21 over Bull Run?

It is owned by the State Highway Agency.