US Bridges

SR 123 over Great Miami River

Fair

Warren County, Ohio · 2 MI S War-Mon CO Line · Structure no. 8304785

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
557 ft
5 main spans
Daily traffic
9,943
2015 count
Owner
State
State Highway Agency

About this bridge

SR 123 over Great Miami River is a steel continuous stringer/multi-beam or girder carrying SR 123 over Great Miami River in Warren County, Ohio. It was built in 1987, so it is 38 years old, younger 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 9,943 vehicles a day, roughly 6% of them trucks, projected to reach 13,801 by 2035. The structure is 557 ft (169.8 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 123
CrossesGreat Miami River
Location2 MI S War-Mon CO Line
RouteState Highway 123
CountyWarren County
StateOhio
Coordinates39.57333, -84.30107
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length557 ft (169.8 m)
Longest span120 ft (36.6 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,943 (2015)
Projected traffic13,801 by 2035
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 123 over Great Miami River built?

It was built in 1987, making it 38 years old in 2025.

What condition is SR 123 over Great 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 July 2024.

How much traffic does SR 123 over Great Miami River carry?

About 9,943 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR 123 over Great Miami River?

The structure is 557 ft (169.8 m) long with a longest span of 120 ft (36.6 m) and a deck 64 ft wide.

Who owns SR 123 over Great Miami River?

It is owned by the State Highway Agency.