US Bridges

Township Road 30 over Hog Creek

Good

Hardin County, Ohio · .5 MI E of JCT of C.R. 65 · Structure no. 3350843

Built
1952
73 years old, rebuilt 2001
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
94 ft
3 main spans
Daily traffic
324
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 30 over Hog Creek is a steel continuous stringer/multi-beam or girder carrying Township Road 30 over Hog Creek in Hardin County, Ohio. It was built in 1952 and reconstructed in 2001, so it is 73 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 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 94 ft (28.7 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTownship Road 30
CrossesHog Creek
Location.5 MI E of JCT of C.R. 65
RouteCounty Highway 30
CountyHardin County
StateOhio
Coordinates40.79087, -83.77414
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans3
Design loadHS 20 + Mod
Structure length94 ft (28.7 m)
Longest span40 ft (12.2 m)
Deck width23 ft (7 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2015)
Projected traffic450 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 Township Road 30 over Hog Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2001.

What condition is Township Road 30 over Hog 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 May 2023.

How much traffic does Township Road 30 over Hog Creek carry?

About 324 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township Road 30 over Hog Creek?

The structure is 94 ft (28.7 m) long with a longest span of 40 ft (12.2 m) and a deck 23 ft wide.

Who owns Township Road 30 over Hog Creek?

It is owned by the County Highway Agency.