US Bridges

SR503 over Aukerman Creek

Fair

Preble County, Ohio · .4 MI N of Gratis · Structure no. 6803458

Built
1962
63 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
1,383
2015 count
Owner
State
State Highway Agency

About this bridge

SR503 over Aukerman Creek is a concrete continuous slab carrying SR503 over Aukerman Creek in Preble 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 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 1,383 vehicles a day, roughly 12% of them trucks, projected to reach 1,920 by 2035. The structure is 99 ft (30.2 m) long and 36 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR503
CrossesAukerman Creek
Location.4 MI N of Gratis
RouteState Highway 503
StateOhio
Coordinates39.65687, -84.52968
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length99 ft (30.2 m)
Longest span35 ft (10.7 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,383 (2015)
Projected traffic1,920 by 2035
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 SR503 over Aukerman Creek built?

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

What condition is SR503 over Aukerman 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 February 2025.

How much traffic does SR503 over Aukerman Creek carry?

About 1,383 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is SR503 over Aukerman Creek?

The structure is 99 ft (30.2 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.

Who owns SR503 over Aukerman Creek?

It is owned by the State Highway Agency.