US Bridges

Ireland Road over Cowan Creek

Good

Clinton County, Ohio · 1.36 MI NE of Cuba RD · Structure no. 1437771

Built
1985
40 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
622
2017 count
Owner
County
County Highway Agency

About this bridge

Ireland Road over Cowan Creek is a prestressed concrete box beam or girders - multiple carrying Ireland Road over Cowan Creek in Clinton County, Ohio. It was built in 1985, so it is 40 years old, younger 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 622 vehicles a day, roughly 13% of them trucks, projected to reach 863 by 2037. The structure is 80 ft (24.4 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIreland Road
CrossesCowan Creek
Location1.36 MI NE of Cuba RD
RouteCounty Highway T0100
StateOhio
Coordinates39.40083, -83.8285
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckSteel plate
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span78 ft (23.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic622 (2017)
Projected traffic863 by 2037
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$68.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Ireland Road over Cowan Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ireland Road over Cowan 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 November 2024.

How much traffic does Ireland Road over Cowan Creek carry?

About 622 vehicles per day (2017 count), of which roughly 13% are trucks.

How long is Ireland Road over Cowan Creek?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.8 m) and a deck 24 ft wide.

Who owns Ireland Road over Cowan Creek?

It is owned by the County Highway Agency.