US Bridges

I-70 over Big Darby Creek

Good

Madison County, Ohio · 0.42 Mi. E. of SR142 · Structure no. 4902858

Built
1970
55 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
3 main spans
Daily traffic
32,533
2015 count
Owner
State
State Highway Agency

About this bridge

I-70 over Big Darby Creek is a steel continuous stringer/multi-beam or girder carrying I-70 over Big Darby Creek in Madison County, Ohio. It was built in 1970, so it is 55 years old, older 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 32,533 vehicles a day, roughly 31% of them trucks, projected to reach 45,156 by 2035. The structure is 225 ft (68.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-70
CrossesBig Darby Creek
Location0.42 Mi. E. of SR142
RouteInterstate 70
CountyMadison County
StateOhio
Coordinates39.98072, -83.24974
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length225 ft (68.7 m)
Longest span85 ft (25.9 m)
Deck width54 ft (16.5 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,533 (2015)
Projected traffic45,156 by 2035
Trucks31%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-70 over Big Darby Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-70 over Big Darby Creek 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 June 2023.

How much traffic does I-70 over Big Darby Creek carry?

About 32,533 vehicles per day (2015 count), of which roughly 31% are trucks.

How long is I-70 over Big Darby Creek?

The structure is 225 ft (68.7 m) long with a longest span of 85 ft (25.9 m) and a deck 54 ft wide.

Who owns I-70 over Big Darby Creek?

It is owned by the State Highway Agency.