US Bridges

Marion CO Route 91 over Dunkard Mill Run

Good

Marion County, West Virginia · 0.03 MI West Mrn CO Rt 20 · Structure no. 00000000025A164

Built
1989
36 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
550
2022 count
Owner
State
State Highway Agency

About this bridge

Marion CO Route 91 over Dunkard Mill Run is a prestressed concrete box beam or girders - multiple carrying Marion CO Route 91 over Dunkard Mill Run in Marion 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 8% of them trucks, projected to reach 860 by 2041. The structure is 70 ft (21.2 m) long and 21 ft wide.

CarriesMarion CO Route 91
CrossesDunkard Mill Run
Location0.03 MI West Mrn CO Rt 20
RouteCounty Highway 9100
Coordinates39.51289, -80.22335
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98 US tons
Inventory rating68 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.2 m)
Longest span68 ft (20.7 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic860 by 2041
Trucks8%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion CO Route 91 over Dunkard Mill Run built?

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

What condition is Marion CO Route 91 over Dunkard Mill Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does Marion CO Route 91 over Dunkard Mill Run carry?

About 550 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Marion CO Route 91 over Dunkard Mill Run?

The structure is 70 ft (21.2 m) long with a longest span of 68 ft (20.7 m) and a deck 21 ft wide.

Who owns Marion CO Route 91 over Dunkard Mill Run?

It is owned by the State Highway Agency.