US Bridges

SR-29 over IR-75

Good

Shelby County, Ohio · Jct. IR-75 · Structure no. 7500157

Built
1961
64 years old, rebuilt 1986
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
4 main spans
Daily traffic
7,214
2015 count
Owner
State
State Highway Agency

About this bridge

SR-29 over IR-75 is a steel continuous stringer/multi-beam or girder carrying SR-29 over IR-75 in Shelby County, Ohio. It was built in 1961 and reconstructed in 1986, so it is 64 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,214 vehicles a day, roughly 7% of them trucks, projected to reach 10,013 by 2035. The structure is 238 ft (72.5 m) long and 40 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR-29
CrossesIR-75
LocationJct. IR-75
RouteState Highway 29
StateOhio
Coordinates40.31418, -84.17559
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating53.6 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length238 ft (72.5 m)
Longest span73 ft (22.3 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,214 (2015)
Projected traffic10,013 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-29 over IR-75 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1986.

What condition is SR-29 over IR-75 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 August 2024.

How much traffic does SR-29 over IR-75 carry?

About 7,214 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR-29 over IR-75?

The structure is 238 ft (72.5 m) long with a longest span of 73 ft (22.3 m) and a deck 40 ft wide.

Who owns SR-29 over IR-75?

It is owned by the State Highway Agency.