US Bridges

IR-75 over B & O RR

Fair

Shelby County, Ohio · .35MI. N. of Jct. SR-29 · Structure no. 7502044

Built
1961
64 years old, rebuilt 1986
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
3 main spans
Daily traffic
20,407
2015 count
Owner
State
State Highway Agency

About this bridge

IR-75 over B & O RR is a steel continuous stringer/multi-beam or girder carrying IR-75 over B & O RR 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 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 20,407 vehicles a day, roughly 14% of them trucks, projected to reach 28,325 by 2035. The structure is 175 ft (53.3 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIR-75
CrossesB & O RR
Location.35MI. N. of Jct. SR-29
RouteInterstate 75
CountyShelby County
StateOhio
Coordinates40.31716, -84.17041
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length175 ft (53.3 m)
Longest span65 ft (19.8 m)
Deck width52 ft (15.7 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,407 (2015)
Projected traffic28,325 by 2035
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IR-75 over B & O RR built?

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

What condition is IR-75 over B & O RR 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 August 2024.

How much traffic does IR-75 over B & O RR carry?

About 20,407 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is IR-75 over B & O RR?

The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 52 ft wide.

Who owns IR-75 over B & O RR?

It is owned by the State Highway Agency.