US Bridges

CR 15 over Mud Run

Good

Hardin County, Ohio · CR 15 · Structure no. 3350401

Built
1970
55 years old, rebuilt 2007
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
28 ft
1 main span
Daily traffic
530
2015 count
Owner
County
County Highway Agency

About this bridge

CR 15 over Mud Run is a concrete box beam or girders - multiple carrying CR 15 over Mud Run in Hardin County, Ohio. It was built in 1970 and reconstructed in 2007, so it is 55 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 530 vehicles a day, roughly 7% of them trucks, projected to reach 736 by 2035. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 15
CrossesMud Run
LocationCR 15
RouteCounty Highway 15
StateOhio
Coordinates40.75736, -83.8799
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
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 rating81.5 US tons
Inventory rating48.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2015)
Projected traffic736 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 CR 15 over Mud Run built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2007.

What condition is CR 15 over Mud 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 2023.

How much traffic does CR 15 over Mud Run carry?

About 530 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is CR 15 over Mud Run?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns CR 15 over Mud Run?

It is owned by the County Highway Agency.