US Bridges

SR-197 over Eight Mile Creek

Good

Mercer County, Ohio · .32MI.N.OF Jct. USR-33 · Structure no. 5402913

Built
1965
60 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
62 ft
3 main spans
Daily traffic
123
2015 count
Owner
State
State Highway Agency

About this bridge

SR-197 over Eight Mile Creek is a concrete continuous slab carrying SR-197 over Eight Mile Creek in Mercer County, Ohio. It was built in 1965, so it is 60 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 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 123 vehicles a day, roughly 5% of them trucks, projected to reach 171 by 2035. The structure is 62 ft (18.9 m) long and 36 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesSR-197
CrossesEight Mile Creek
Location.32MI.N.OF Jct. USR-33
RouteState Highway 197
StateOhio
Coordinates40.60615, -84.48745
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.7 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length62 ft (18.9 m)
Longest span23 ft (7 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic123 (2015)
Projected traffic171 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-197 over Eight Mile Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR-197 over Eight Mile 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 August 2024.

How much traffic does SR-197 over Eight Mile Creek carry?

About 123 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is SR-197 over Eight Mile Creek?

The structure is 62 ft (18.9 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.

Who owns SR-197 over Eight Mile Creek?

It is owned by the State Highway Agency.