US Bridges

I-70 over I-75

Good

Montgomery County, Ohio · JCT of I-75 · Structure no. 5705894

Built
2006
19 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
2 main spans
Daily traffic
40,641
2015 count
Owner
State
State Highway Agency

About this bridge

I-70 over I-75 is a steel continuous stringer/multi-beam or girder carrying I-70 over I-75 in Montgomery County, Ohio. It was built in 2006, so it is 19 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 40,641 vehicles a day, roughly 24% of them trucks, projected to reach 56,410 by 2035. The structure is 180 ft (54.8 m) long and 120 ft wide.

Location

Open in Google Maps
CarriesI-70
CrossesI-75
LocationJCT of I-75
RouteInterstate 70
CountyMontgomery County
StateOhio
Coordinates39.86529, -84.18897
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.
Superstructure9 ExcellentNo 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 rating80.7 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length180 ft (54.8 m)
Longest span95 ft (29 m)
Deck width120 ft (36.5 m)
Roadway width114 ft (34.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,641 (2015)
Projected traffic56,410 by 2035
Trucks24%
Lanes on structure6
Traffic directionTwo-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 I-70 over I-75 built?

It was built in 2006, making it 19 years old in 2025.

What condition is I-70 over I-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 September 2023.

How much traffic does I-70 over I-75 carry?

About 40,641 vehicles per day (2015 count), of which roughly 24% are trucks.

How long is I-70 over I-75?

The structure is 180 ft (54.8 m) long with a longest span of 95 ft (29 m) and a deck 120 ft wide.

Who owns I-70 over I-75?

It is owned by the State Highway Agency.