US Bridges

I-71 over Mud Run

Good

Madison County, Ohio · 0.71 MI N of SR323 · Structure no. 4903153

Built
1964
61 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
18,136
2015 count
Owner
State
State Highway Agency

About this bridge

I-71 over Mud Run is a prestressed concrete continuous box beam or girders - single or spread carrying I-71 over Mud Run in Madison 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,136 vehicles a day, roughly 21% of them trucks, projected to reach 25,173 by 2035. The structure is 93 ft (28.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-71
CrossesMud Run
Location0.71 MI N of SR323
RouteInterstate 71
CountyMadison County
StateOhio
Coordinates39.734, -83.36071
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length93 ft (28.3 m)
Longest span35 ft (10.7 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,136 (2015)
Projected traffic25,173 by 2035
Trucks21%
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 Mud Run built?

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

What condition is I-71 over Mud Run 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 January 2025.

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

About 18,136 vehicles per day (2015 count), of which roughly 21% are trucks.

How long is I-71 over Mud Run?

The structure is 93 ft (28.3 m) long with a longest span of 35 ft (10.7 m) and a deck 44 ft wide.

Who owns I-71 over Mud Run?

It is owned by the State Highway Agency.