US Bridges

SR 323 over Over I-71

Fair

Madison County, Ohio · 5.5 Mi. W. of SR-56 · Structure no. 4904176

Built
1964
61 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
368 ft
4 main spans
Daily traffic
673
2015 count
Owner
State
State Highway Agency

About this bridge

SR 323 over Over I-71 is a steel continuous stringer/multi-beam or girder carrying SR 323 over Over I-71 in Madison 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 673 vehicles a day, roughly 7% of them trucks, projected to reach 934 by 2035. The structure is 368 ft (112.2 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR 323
CrossesOver I-71
Location5.5 Mi. W. of SR-56
RouteState Highway 323
CountyMadison County
StateOhio
Coordinates39.72989, -83.37286
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length368 ft (112.2 m)
Longest span107 ft (32.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic673 (2015)
Projected traffic934 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 323 over Over I-71 built?

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

What condition is SR 323 over Over I-71 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 November 2024.

How much traffic does SR 323 over Over I-71 carry?

About 673 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR 323 over Over I-71?

The structure is 368 ft (112.2 m) long with a longest span of 107 ft (32.6 m) and a deck 31 ft wide.

Who owns SR 323 over Over I-71?

It is owned by the State Highway Agency.