US Bridges

SR 100 over Mud Run

Fair

Marion County, Ohio · 1.45 MI N of SR309 · Structure no. 5102979

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
67 ft
3 main spans
Daily traffic
561
2015 count
Owner
State
State Highway Agency

About this bridge

SR 100 over Mud Run is a concrete continuous slab carrying SR 100 over Mud Run in Marion County, Ohio. It was built in 1962, so it is 63 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 561 vehicles a day, roughly 13% of them trucks, projected to reach 779 by 2035. The structure is 67 ft (20.4 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 100
CrossesMud Run
Location1.45 MI N of SR309
RouteState Highway 100
CountyMarion County
StateOhio
Coordinates40.68614, -82.86084
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length67 ft (20.4 m)
Longest span25 ft (7.6 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic561 (2015)
Projected traffic779 by 2035
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 100 over Mud Run built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR 100 over Mud Run 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 SR 100 over Mud Run carry?

About 561 vehicles per day (2015 count), of which roughly 13% are trucks.

How long is SR 100 over Mud Run?

The structure is 67 ft (20.4 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.

Who owns SR 100 over Mud Run?

It is owned by the State Highway Agency.