US Bridges

IR-75 over Ir 75 Ramp G

Good

Montgomery County, Ohio · Ramp G I70 & I-75 Intchg · Structure no. 5709075

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
60,405
2015 count
Owner
State
State Highway Agency

About this bridge

IR-75 over Ir 75 Ramp G is a prestressed concrete stringer/multi-beam or girder carrying IR-75 over Ir 75 Ramp G in Montgomery County, Ohio. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60,405 vehicles a day, roughly 14% of them trucks, projected to reach 83,842 by 2035. The structure is 74 ft (22.5 m) long and 125 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIR-75
CrossesIr 75 Ramp G
LocationRamp G I70 & I-75 Intchg
RouteInterstate 75
StateOhio
Coordinates39.8634, -84.18901
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating57.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length74 ft (22.5 m)
Longest span72 ft (21.9 m)
Deck width125 ft (38.1 m)
Roadway width123 ft (37.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,405 (2015)
Projected traffic83,842 by 2035
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Ir 75 Ramp G built?

It was built in 2008, making it 17 years old in 2025.

What condition is IR-75 over Ir 75 Ramp G 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 September 2023.

How much traffic does IR-75 over Ir 75 Ramp G carry?

About 60,405 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is IR-75 over Ir 75 Ramp G?

The structure is 74 ft (22.5 m) long with a longest span of 72 ft (21.9 m) and a deck 125 ft wide.

Who owns IR-75 over Ir 75 Ramp G?

It is owned by the State Highway Agency.