US Bridges

Thornburg Road over Trib E Fork Little Miami

Good

Clinton County, Ohio · .6 MI South of SR73 · Structure no. 1440047

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
172
2017 count
Owner
County
County Highway Agency

About this bridge

Thornburg Road over Trib E Fork Little Miami is a prestressed concrete box beam or girders - multiple carrying Thornburg Road over Trib E Fork Little Miami in Clinton County, Ohio. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 172 vehicles a day, roughly 4% of them trucks, projected to reach 239 by 2037. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesThornburg Road
CrossesTrib E Fork Little Miami
Location.6 MI South of SR73
RouteCounty Highway T0139
StateOhio
Coordinates39.34168, -83.71861
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating45.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic172 (2017)
Projected traffic239 by 2037
Trucks4%
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$87.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Thornburg Road over Trib E Fork Little Miami built?

It was built in 2006, making it 19 years old in 2025.

What condition is Thornburg Road over Trib E Fork Little Miami 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 Thornburg Road over Trib E Fork Little Miami carry?

About 172 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Thornburg Road over Trib E Fork Little Miami?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns Thornburg Road over Trib E Fork Little Miami?

It is owned by the County Highway Agency.