US Bridges

Ir 71 SB over Unr IR70 & Ovr SR315

Fair

Franklin County, Ohio · 4.51 MI N of I270 · Structure no. 2507579

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
580 ft
6 main spans
Daily traffic
75,685
2001 count
Owner
State
State Highway Agency

About this bridge

Ir 71 SB over Unr IR70 & Ovr SR315 is a steel continuous stringer/multi-beam or girder carrying Ir 71 SB over Unr IR70 & Ovr SR315 in Franklin County, Ohio. It was built in 1975, so it is 50 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 5 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 75,685 vehicles a day, roughly 10% of them trucks, projected to reach 105,051 by 2034. The structure is 580 ft (176.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIr 71 SB
CrossesUnr IR70 & Ovr SR315
Location4.51 MI N of I270
CountyFranklin County
StateOhio
Coordinates39.94906, -83.01649
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable 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 spans6
Design loadHS 20 + Mod
Structure length580 ft (176.7 m)
Longest span124 ft (37.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic75,685 (2001)
Projected traffic105,051 by 2034
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ir 71 SB over Unr IR70 & Ovr SR315 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ir 71 SB over Unr IR70 & Ovr SR315 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 September 2024.

How much traffic does Ir 71 SB over Unr IR70 & Ovr SR315 carry?

About 75,685 vehicles per day (2001 count), of which roughly 10% are trucks.

How long is Ir 71 SB over Unr IR70 & Ovr SR315?

The structure is 580 ft (176.7 m) long with a longest span of 124 ft (37.8 m) and a deck 33 ft wide.

Who owns Ir 71 SB over Unr IR70 & Ovr SR315?

It is owned by the State Highway Agency.