US Bridges

Marion CO Rt 91 over Plum Run

PoorPosted for load

Marion County, West Virginia · 0.01 MI West CO Rt 18 · Structure no. 00000000025A163

Built
1911
114 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
300
2022 count
Owner
State
State Highway Agency

About this bridge

Marion CO Rt 91 over Plum Run is a steel stringer/multi-beam or girder carrying Marion CO Rt 91 over Plum Run in Marion County, West Virginia. It was built in 1911, so it is 114 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 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. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 8% of them trucks, projected to reach 470 by 2041. The structure is 31 ft (9.4 m) long and 20 ft wide.

CarriesMarion CO Rt 91
CrossesPlum Run
Location0.01 MI West CO Rt 18
RouteCounty Highway 9100
Coordinates39.5156, -80.28554
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating29 US tons
Inventory rating13 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span26 ft (7.9 m)
Deck width20 ft (6 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic470 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$548,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion CO Rt 91 over Plum Run built?

It was built in 1911, making it 114 years old in 2025.

What condition is Marion CO Rt 91 over Plum Run 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 March 2024.

How much traffic does Marion CO Rt 91 over Plum Run carry?

About 300 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Marion CO Rt 91 over Plum Run?

The structure is 31 ft (9.4 m) long with a longest span of 26 ft (7.9 m) and a deck 20 ft wide.

Who owns Marion CO Rt 91 over Plum Run?

It is owned by the State Highway Agency.