US Bridges

Mon CO 81/1 over Cobun Creek

Good

Monongalia County, West Virginia · 0.60 MI W of Mon CR 81 · Structure no. 00000000031A326

Built
2014
11 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
10
2022 count
Owner
State
State Highway Agency

About this bridge

Mon CO 81/1 over Cobun Creek is a prestressed concrete box beam or girders - multiple carrying Mon CO 81/1 over Cobun Creek in Monongalia County, West Virginia. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 15 by 2041. The structure is 44 ft (13.3 m) long and 15 ft wide.

Location

Open in Google Maps
CarriesMon CO 81/1
CrossesCobun Creek
Location0.60 MI W of Mon CR 81
RouteCounty Highway 811
CountyMonongalia County
StateWest Virginia
Coordinates39.59163, -79.94122
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length44 ft (13.3 m)
Longest span40 ft (12.2 m)
Deck width15 ft (4.7 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic15 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mon CO 81/1 over Cobun Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Mon CO 81/1 over Cobun Creek 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 May 2024.

How much traffic does Mon CO 81/1 over Cobun Creek carry?

About 10 vehicles per day (2022 count).

How long is Mon CO 81/1 over Cobun Creek?

The structure is 44 ft (13.3 m) long with a longest span of 40 ft (12.2 m) and a deck 15 ft wide.

Who owns Mon CO 81/1 over Cobun Creek?

It is owned by the State Highway Agency.