US Bridges

County Road 84 over Blanchard River

Good

Hardin County, Ohio · .3 MI E of JCT of CR 167 · Structure no. 3340139

Built
1972
53 years old, rebuilt 2020
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
386
2016 count
Owner
County
County Highway Agency

About this bridge

County Road 84 over Blanchard River is a steel stringer/multi-beam or girder carrying County Road 84 over Blanchard River in Hardin County, Ohio. It was built in 1972 and reconstructed in 2020, so it is 53 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 386 vehicles a day, roughly 8% of them trucks, projected to reach 536 by 2036. The structure is 37 ft (11.2 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 84
CrossesBlanchard River
Location.3 MI E of JCT of CR 167
RouteCounty Highway C0084
CountyHardin County
StateOhio
Coordinates40.7101, -83.58623
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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length37 ft (11.2 m)
Longest span33 ft (10.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2016)
Projected traffic536 by 2036
Trucks8%
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 84 over Blanchard River built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2020.

What condition is County Road 84 over Blanchard River 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 2024.

How much traffic does County Road 84 over Blanchard River carry?

About 386 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is County Road 84 over Blanchard River?

The structure is 37 ft (11.2 m) long with a longest span of 33 ft (10.1 m) and a deck 24 ft wide.

Who owns County Road 84 over Blanchard River?

It is owned by the County Highway Agency.