US Bridges

Irish Ridge Road over Little Duncan Run

Fair

Muskingum County, Ohio · 1.10 MI N of Duncan Run · Structure no. 6034292

Built
1945
80 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
208
2015 count
Owner
County
County Highway Agency

About this bridge

Irish Ridge Road over Little Duncan Run is a concrete slab carrying Irish Ridge Road over Little Duncan Run in Muskingum County, Ohio. It was built in 1945, so it is 80 years old, older than the Ohio average of 47.3 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 208 vehicles a day, roughly 7% of them trucks, projected to reach 289 by 2035. The structure is 26 ft (7.9 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIrish Ridge Road
CrossesLittle Duncan Run
Location1.10 MI N of Duncan Run
RouteCounty Highway C0032
CountyMuskingum County
StateOhio
Coordinates39.84681, -81.93448
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2015)
Projected traffic289 by 2035
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Irish Ridge Road over Little Duncan Run built?

It was built in 1945, making it 80 years old in 2025.

What condition is Irish Ridge Road over Little Duncan 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 October 2024.

How much traffic does Irish Ridge Road over Little Duncan Run carry?

About 208 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Irish Ridge Road over Little Duncan Run?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 17 ft wide.

Who owns Irish Ridge Road over Little Duncan Run?

It is owned by the County Highway Agency.