US Bridges

I.R. 270 over Alum Creek

Good

Franklin County, Ohio · 2.72 MI S of SR317 · Structure no. 2514044

Built
1968
57 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
212 ft
3 main spans
Daily traffic
48,266
2015 count
Owner
State
State Highway Agency

About this bridge

I.R. 270 over Alum Creek is a steel continuous stringer/multi-beam or girder carrying I.R. 270 over Alum Creek in Franklin County, Ohio. It was built in 1968, so it is 57 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 48,266 vehicles a day, roughly 13% of them trucks, projected to reach 66,993 by 2035. The structure is 212 ft (64.6 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI.R. 270
CrossesAlum Creek
Location2.72 MI S of SR317
RouteInterstate 270
CountyFranklin County
StateOhio
Coordinates39.88733, -82.91265
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span80 ft (24.4 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,266 (2015)
Projected traffic66,993 by 2035
Trucks13%
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.R. 270 over Alum Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is I.R. 270 over Alum 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 2023.

How much traffic does I.R. 270 over Alum Creek carry?

About 48,266 vehicles per day (2015 count), of which roughly 13% are trucks.

How long is I.R. 270 over Alum Creek?

The structure is 212 ft (64.6 m) long with a longest span of 80 ft (24.4 m) and a deck 54 ft wide.

Who owns I.R. 270 over Alum Creek?

It is owned by the State Highway Agency.