US Bridges

County Road 8 over Blanchard River

Fair

Putnam County, Ohio · 0.29 MI S of Old SR 224 · Structure no. 6931537

Built
1974
51 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
4 main spans
Daily traffic
797
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 8 over Blanchard River is a steel continuous stringer/multi-beam or girder carrying County Road 8 over Blanchard River 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 6 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 797 vehicles a day, roughly 8% of them trucks, projected to reach 1,106 by 2035. The structure is 245 ft (74.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road 8
CrossesBlanchard River
Location0.29 MI S of Old SR 224
RouteCounty Highway 8
CountyPutnam County
StateOhio
Coordinates41.01204, -84.01526
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 rating26.5 US tons
Inventory rating15.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans4
Design loadHS 20 + Mod
Structure length245 ft (74.7 m)
Longest span61 ft (18.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic797 (2015)
Projected traffic1,106 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 8 over Blanchard River built?

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

What condition is County Road 8 over Blanchard River 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 December 2024.

How much traffic does County Road 8 over Blanchard River carry?

About 797 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is County Road 8 over Blanchard River?

The structure is 245 ft (74.7 m) long with a longest span of 61 ft (18.6 m) and a deck 30 ft wide.

Who owns County Road 8 over Blanchard River?

It is owned by the County Highway Agency.