US Bridges

County Road 15 over Canaan

Good

Hardin County, Ohio · .6 MI N of JCT of CR 20 · Structure no. 3349152

Built
1981
44 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
26 ft
1 main span
Daily traffic
530
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 15 over Canaan is a concrete box beam or girders - multiple carrying County Road 15 over Canaan in Hardin County, Ohio. It was built in 1981, so it is 44 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 7 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 26 ft (7.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 15
CrossesCanaan
Location.6 MI N of JCT of CR 20
RouteCounty Highway 15
CountyHardin County
StateOhio
Coordinates40.81487, -83.88004
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 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 County Road 15 over Canaan built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Road 15 over Canaan 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 County Road 15 over Canaan carry?

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

How long is County Road 15 over Canaan?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 24 ft wide.

Who owns County Road 15 over Canaan?

It is owned by the County Highway Agency.