US Bridges

I-71 over Opossum Run

Poor

Pickaway County, Ohio · 0.46 MI N of Madison CO · Structure no. 6501834

Built
1964
61 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
20,873
2015 count
Owner
State
State Highway Agency

About this bridge

I-71 over Opossum Run is a concrete continuous slab carrying I-71 over Opossum Run in Pickaway 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20,873 vehicles a day, roughly 20% of them trucks, projected to reach 28,972 by 2035. The structure is 119 ft (36.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-71
CrossesOpossum Run
Location0.46 MI N of Madison CO
RouteInterstate 71
StateOhio
Coordinates39.78939, -83.23817
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length119 ft (36.3 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,873 (2015)
Projected traffic28,972 by 2035
Trucks20%
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 I-71 over Opossum Run built?

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

What condition is I-71 over Opossum Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does I-71 over Opossum Run carry?

About 20,873 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is I-71 over Opossum Run?

The structure is 119 ft (36.3 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns I-71 over Opossum Run?

It is owned by the State Highway Agency.