US Bridges

Township Road 12 over Plum Creek

Fair

Putnam County, Ohio · 0.63 MI N of RD Z · Structure no. 6932185

Built
1974
51 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 12 over Plum Creek is a steel stringer/multi-beam or girder carrying Township Road 12 over Plum Creek in Putnam County, Ohio. It was built in 1974, so it is 51 years old, older 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 5 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 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2035. The structure is 54 ft (16.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTownship Road 12
CrossesPlum Creek
Location0.63 MI N of RD Z
RouteCounty Highway 12
StateOhio
Coordinates40.9434, -84.09138
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating12.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.5 m)
Longest span52 ft (15.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2015)
Projected traffic487 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 12 over Plum Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Township Road 12 over Plum Creek 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 November 2024.

How much traffic does Township Road 12 over Plum Creek carry?

About 351 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township Road 12 over Plum Creek?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.9 m) and a deck 26 ft wide.

Who owns Township Road 12 over Plum Creek?

It is owned by the County Highway Agency.