US Bridges

SB IR-75 over S725

Fair

Montgomery County, Ohio · Jct. SR-725 · Structure no. 5706483

Built
1960
65 years old, rebuilt 1999
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
193 ft
4 main spans
Daily traffic
39,003
2015 count
Owner
State
State Highway Agency

About this bridge

SB IR-75 over S725 is a steel continuous stringer/multi-beam or girder carrying SB IR-75 over S725 in Montgomery County, Ohio. It was built in 1960 and reconstructed in 1999, so it is 65 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 39,003 vehicles a day, roughly 14% of them trucks, projected to reach 54,136 by 2035. The structure is 193 ft (58.8 m) long and 76 ft wide.

CarriesSB IR-75
CrossesS725
LocationJct. SR-725
RouteInterstate 75
StateOhio
Coordinates39.63911, -84.23129
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 inspectionDecember 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 alignment9: Superior to present desirable criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length193 ft (58.8 m)
Longest span54 ft (16.5 m)
Deck width76 ft (23.2 m)
Roadway width73 ft (22.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,003 (2015)
Projected traffic54,136 by 2035
Trucks14%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 SB IR-75 over S725 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is SB IR-75 over S725 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 December 2024.

How much traffic does SB IR-75 over S725 carry?

About 39,003 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is SB IR-75 over S725?

The structure is 193 ft (58.8 m) long with a longest span of 54 ft (16.5 m) and a deck 76 ft wide.

Who owns SB IR-75 over S725?

It is owned by the State Highway Agency.