US Bridges

IR-75 Ramp to I675 over SB I675 and I75

Good

Montgomery County, Ohio · 2.59 Mi. N. Warren Co. · Structure no. 5706432

Built
1983
42 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
547 ft
6 main spans
Daily traffic
83,260
2009 count
Owner
State
State Highway Agency

About this bridge

IR-75 Ramp to I675 over SB I675 and I75 is a steel continuous stringer/multi-beam or girder carrying IR-75 Ramp to I675 over SB I675 and I75 in Montgomery County, Ohio. It was built in 1983, so it is 42 years old, younger 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 83,260 vehicles a day, projected to reach 115,565 by 2029. The structure is 547 ft (166.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIR-75 Ramp to I675
CrossesSB I675 and I75
Location2.59 Mi. N. Warren Co.
RouteInterstate 75
StateOhio
Coordinates39.62268, -84.22937
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length547 ft (166.7 m)
Longest span125 ft (38.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83,260 (2009)
Projected traffic115,565 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesThird level (interchange)
CrossesHighway
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 Ramp to I675 over SB I675 and I75 built?

It was built in 1983, making it 42 years old in 2025.

What condition is IR-75 Ramp to I675 over SB I675 and I75 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 November 2024.

How much traffic does IR-75 Ramp to I675 over SB I675 and I75 carry?

About 83,260 vehicles per day (2009 count).

How long is IR-75 Ramp to I675 over SB I675 and I75?

The structure is 547 ft (166.7 m) long with a longest span of 125 ft (38.1 m) and a deck 30 ft wide.

Who owns IR-75 Ramp to I675 over SB I675 and I75?

It is owned by the State Highway Agency.