US Bridges

US 42 over Little Miami River

Fair

Greene County, Ohio · 0.1 MI So of SR 725 JCT · Structure no. 2900750

Built
1955
70 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
291 ft
4 main spans
Daily traffic
7,080
2015 count
Owner
State
State Highway Agency

About this bridge

US 42 over Little Miami River is a steel continuous stringer/multi-beam or girder carrying US 42 over Little Miami River in Greene County, Ohio. It was built in 1955, so it is 70 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 7,080 vehicles a day, roughly 4% of them trucks, projected to reach 9,827 by 2035. The structure is 291 ft (88.7 m) long and 34 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesUS 42
CrossesLittle Miami River
Location0.1 MI So of SR 725 JCT
RouteU.S. Route 42
CountyGreene County
StateOhio
Coordinates39.60185, -84.01431
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.3 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length291 ft (88.7 m)
Longest span78 ft (23.8 m)
Deck width34 ft (10.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,080 (2015)
Projected traffic9,827 by 2035
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$680,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 42 over Little Miami River built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 42 over Little Miami River 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 June 2024.

How much traffic does US 42 over Little Miami River carry?

About 7,080 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is US 42 over Little Miami River?

The structure is 291 ft (88.7 m) long with a longest span of 78 ft (23.8 m) and a deck 34 ft wide.

Who owns US 42 over Little Miami River?

It is owned by the State Highway Agency.