US Bridges

Washington Mill RD over Little Miami River

Good

Greene County, Ohio · .1 Mi. W of Stewart Rd. · Structure no. 2933179

Built
1968
57 years old, rebuilt 2011
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
1,216
2019 count
Owner
County
County Highway Agency

About this bridge

Washington Mill RD over Little Miami River is a prestressed concrete box beam or girders - multiple carrying Washington Mill RD over Little Miami River in Greene County, Ohio. It was built in 1968 and reconstructed in 2011, so it is 57 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 1,216 vehicles a day, roughly 10% of them trucks, projected to reach 1,106 by 2039. The structure is 213 ft (64.8 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWashington Mill RD
CrossesLittle Miami River
Location.1 Mi. W of Stewart Rd.
RouteCounty Highway 89
StateOhio
Coordinates39.64497, -84.04294
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.4 US tons
Inventory rating54.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.8 m)
Longest span69 ft (21.1 m)
Deck width33 ft (10.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,216 (2019)
Projected traffic1,106 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Washington Mill RD over Little Miami River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2011.

What condition is Washington Mill RD over Little Miami River 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 November 2024.

How much traffic does Washington Mill RD over Little Miami River carry?

About 1,216 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Washington Mill RD over Little Miami River?

The structure is 213 ft (64.8 m) long with a longest span of 69 ft (21.1 m) and a deck 33 ft wide.

Who owns Washington Mill RD over Little Miami River?

It is owned by the County Highway Agency.