US Bridges

SR 123 over I71

Fair

Warren County, Ohio · Over Ir 71 · Structure no. 8304416

Built
1964
61 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
320 ft
4 main spans
Daily traffic
8,147
2015 count
Owner
State
State Highway Agency

About this bridge

SR 123 over I71 is a steel continuous stringer/multi-beam or girder carrying SR 123 over I71 in Warren County, Ohio. It was built in 1964, so it is 61 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 8,147 vehicles a day, roughly 10% of them trucks, projected to reach 11,308 by 2035. The structure is 320 ft (97.4 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 123
CrossesI71
LocationOver Ir 71
RouteState Highway 123
StateOhio
Coordinates39.41258, -84.15256
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating31.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length320 ft (97.4 m)
Longest span93 ft (28.2 m)
Deck width66 ft (20 m)
Roadway width63 ft (19.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,147 (2015)
Projected traffic11,308 by 2035
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 123 over I71 built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR 123 over I71 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 April 2024.

How much traffic does SR 123 over I71 carry?

About 8,147 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is SR 123 over I71?

The structure is 320 ft (97.4 m) long with a longest span of 93 ft (28.2 m) and a deck 66 ft wide.

Who owns SR 123 over I71?

It is owned by the State Highway Agency.