US Bridges

Round Bottom RD over Trib Little Miami River

Good

Hamilton County, Ohio · 660 Ft W of Mt Carmel RD · Structure no. 3133001

Built
1991
34 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
1,427
2015 count
Owner
County
County Highway Agency

About this bridge

Round Bottom RD over Trib Little Miami River is a prestressed concrete box beam or girders - multiple carrying Round Bottom RD over Trib Little Miami River in Hamilton County, Ohio. It was built in 1991, so it is 34 years old, younger 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 1,427 vehicles a day, roughly 5% of them trucks, projected to reach 1,981 by 2035. The structure is 44 ft (13.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRound Bottom RD
CrossesTrib Little Miami River
Location660 Ft W of Mt Carmel RD
RouteCounty Highway C0378
StateOhio
Coordinates39.14801, -84.31575
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,427 (2015)
Projected traffic1,981 by 2035
Trucks5%
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 Round Bottom RD over Trib Little Miami River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Round Bottom RD over Trib 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 Round Bottom RD over Trib Little Miami River carry?

About 1,427 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Round Bottom RD over Trib Little Miami River?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.

Who owns Round Bottom RD over Trib Little Miami River?

It is owned by the County Highway Agency.