US Bridges

SR 423 over Rock Fork Creek

Fair

Marion County, Ohio · 3.36 MI S of SR231 · Structure no. 5103452

Built
1966
59 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
2,142
2015 count
Owner
State
State Highway Agency

About this bridge

SR 423 over Rock Fork Creek is a concrete continuous slab carrying SR 423 over Rock Fork Creek in Marion County, Ohio. It was built in 1966, so it is 59 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 2,142 vehicles a day, roughly 9% of them trucks, projected to reach 2,973 by 2035. The structure is 99 ft (30.2 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 423
CrossesRock Fork Creek
Location3.36 MI S of SR231
RouteState Highway 423
CountyMarion County
StateOhio
Coordinates40.64094, -83.14524
Functional classRural Major 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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length99 ft (30.2 m)
Longest span37 ft (11.4 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,142 (2015)
Projected traffic2,973 by 2035
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 423 over Rock Fork Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is SR 423 over Rock Fork Creek 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 November 2024.

How much traffic does SR 423 over Rock Fork Creek carry?

About 2,142 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is SR 423 over Rock Fork Creek?

The structure is 99 ft (30.2 m) long with a longest span of 37 ft (11.4 m) and a deck 44 ft wide.

Who owns SR 423 over Rock Fork Creek?

It is owned by the State Highway Agency.