US Bridges

Cozaddale-Murdoch over Grog Run

Fair

Warren County, Ohio · 0.99 MI E of CR 153 · Structure no. 8334498

Built
1982
43 years old
Condition
Fair
inspected December 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
24 ft
1 main span
Daily traffic
1,649
2015 count
Owner
County
County Highway Agency

About this bridge

Cozaddale-Murdoch over Grog Run is a aluminum, wrought iron, or cast iron culvert carrying Cozaddale-Murdoch over Grog Run in Warren County, Ohio. It was built in 1982, so it is 43 years old, younger 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 6 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 1,649 vehicles a day, roughly 8% of them trucks, projected to reach 2,289 by 2035. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCozaddale-Murdoch
CrossesGrog Run
Location0.99 MI E of CR 153
RouteCounty Highway C0026
CountyWarren County
StateOhio
Coordinates39.28194, -84.17888
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,649 (2015)
Projected traffic2,289 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Cozaddale-Murdoch over Grog Run built?

It was built in 1982, making it 43 years old in 2025.

What condition is Cozaddale-Murdoch over Grog 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 December 2024.

How much traffic does Cozaddale-Murdoch over Grog Run carry?

About 1,649 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Cozaddale-Murdoch over Grog Run?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Cozaddale-Murdoch over Grog Run?

It is owned by the County Highway Agency.