US Bridges

US 33 over Slate Run

Fair

Franklin County, Ohio · 3.67 MI E of SR745 · Structure no. 2501201

Built
1927
98 years old, rebuilt 1995
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
20,731
2024 count
Owner
State
State Highway Agency

About this bridge

US 33 over Slate Run is a concrete slab carrying US 33 over Slate Run in Franklin County, Ohio. It was built in 1927 and reconstructed in 1995, so it is 98 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 6 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 20,731 vehicles a day, roughly 3% of them trucks, projected to reach 28,775 by 2044. The structure is 21 ft (6.4 m) long and 62 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 33
CrossesSlate Run
Location3.67 MI E of SR745
RouteU.S. Route 33
CountyFranklin County
StateOhio
Coordinates40.05238, -83.09581
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating100 US tons
Inventory rating75 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width62 ft (18.9 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,731 (2024)
Projected traffic28,775 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$140,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 33 over Slate Run built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1995.

What condition is US 33 over Slate 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 March 2024.

How much traffic does US 33 over Slate Run carry?

About 20,731 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is US 33 over Slate Run?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 62 ft wide.

Who owns US 33 over Slate Run?

It is owned by the State Highway Agency.