US Bridges

Mingo RD over Plug Run

Good

Ross County, Ohio · 1.25 MI NE Lower Twin RD · Structure no. 7137044

Built
1977
48 years old, rebuilt 2014
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
28 ft
1 main span
Daily traffic
689
2015 count
Owner
County
County Highway Agency

About this bridge

Mingo RD over Plug Run is a concrete box beam or girders - multiple carrying Mingo RD over Plug Run in Ross County, Ohio. It was built in 1977 and reconstructed in 2014, so it is 48 years old, older than the Ohio average of 47.3 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 689 vehicles a day, roughly 7% of them trucks, projected to reach 956 by 2035. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMingo RD
CrossesPlug Run
Location1.25 MI NE Lower Twin RD
RouteCounty Highway C0104
CountyRoss County
StateOhio
Coordinates39.31685, -83.17558
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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.8 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic689 (2015)
Projected traffic956 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mingo RD over Plug Run built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2014.

What condition is Mingo RD over Plug 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 May 2024.

How much traffic does Mingo RD over Plug Run carry?

About 689 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Mingo RD over Plug Run?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns Mingo RD over Plug Run?

It is owned by the County Highway Agency.