US Bridges

County Road M over Riley Creek

Fair

Putnam County, Ohio · 0.11 MI E of RD 7-L · Structure no. 6930204

Built
1972
53 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
231 ft
4 main spans
Daily traffic
887
2015 count
Owner
County
County Highway Agency

About this bridge

County Road M over Riley Creek is a steel stringer/multi-beam or girder carrying County Road M over Riley Creek in Putnam County, Ohio. It was built in 1972, 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 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 887 vehicles a day, roughly 7% of them trucks, projected to reach 1,231 by 2035. The structure is 231 ft (70.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road M
CrossesRiley Creek
Location0.11 MI E of RD 7-L
RouteCounty Highway 0M
CountyPutnam County
StateOhio
Coordinates40.99276, -83.99639
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans4
Design loadHS 20 + Mod
Structure length231 ft (70.4 m)
Longest span63 ft (19.2 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic887 (2015)
Projected traffic1,231 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 County Road M over Riley Creek built?

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

What condition is County Road M over Riley 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 December 2024.

How much traffic does County Road M over Riley Creek carry?

About 887 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is County Road M over Riley Creek?

The structure is 231 ft (70.4 m) long with a longest span of 63 ft (19.2 m) and a deck 31 ft wide.

Who owns County Road M over Riley Creek?

It is owned by the County Highway Agency.