US Bridges

C9 over I70

Fair

Preble County, Ohio · 1.2 MI W of US127 · Structure no. 6801080

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
4 main spans
Daily traffic
246
2015 count
Owner
State
State Highway Agency

About this bridge

C9 over I70 is a steel continuous stringer/multi-beam or girder carrying C9 over I70 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 246 vehicles a day, roughly 8% of them trucks, projected to reach 44,516 by 2035. The structure is 280 ft (85.3 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesC9
CrossesI70
Location1.2 MI W of US127
RouteCounty Highway C0009
CountyPreble County
StateOhio
Coordinates39.83508, -84.6518
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length280 ft (85.3 m)
Longest span81 ft (24.8 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2015)
Projected traffic44,516 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 C9 over I70 built?

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

What condition is C9 over I70 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does C9 over I70 carry?

About 246 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is C9 over I70?

The structure is 280 ft (85.3 m) long with a longest span of 81 ft (24.8 m) and a deck 31 ft wide.

Who owns C9 over I70?

It is owned by the State Highway Agency.