US Bridges

I70 EB over Seven Mile Creek

Good

Preble County, Ohio · 2.4 MI W of SR726 · Structure no. 6800939

Built
1964
61 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
16,036
2015 count
Owner
State
State Highway Agency

About this bridge

I70 EB over Seven Mile Creek is a concrete continuous slab carrying I70 EB over Seven Mile Creek in Preble County, Ohio. It was built in 1964, so it is 61 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 16,036 vehicles a day, roughly 47% of them trucks, projected to reach 22,258 by 2035. The structure is 80 ft (24.4 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI70 EB
CrossesSeven Mile Creek
Location2.4 MI W of SR726
RouteInterstate 70
StateOhio
Coordinates39.83335, -84.72078
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width68 ft (20.8 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,036 (2015)
Projected traffic22,258 by 2035
Trucks47%
Lanes on structure2
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 I70 EB over Seven Mile Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is I70 EB over Seven Mile 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 September 2024.

How much traffic does I70 EB over Seven Mile Creek carry?

About 16,036 vehicles per day (2015 count), of which roughly 47% are trucks.

How long is I70 EB over Seven Mile Creek?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 68 ft wide.

Who owns I70 EB over Seven Mile Creek?

It is owned by the State Highway Agency.