US Bridges

SR503 over Tributary Twin Creek

Good

Preble County, Ohio · 2.1 MI S of W Alexandria · Structure no. 6803571

Built
1959
66 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
2,567
2015 count
Owner
State
State Highway Agency

About this bridge

SR503 over Tributary Twin Creek is a concrete culvert carrying SR503 over Tributary Twin Creek in Preble County, Ohio. It was built in 1959, so it is 66 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,567 vehicles a day, roughly 12% of them trucks, projected to reach 3,563 by 2035. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR503
CrossesTributary Twin Creek
Location2.1 MI S of W Alexandria
RouteState Highway 503
StateOhio
Coordinates39.70878, -84.53626
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,567 (2015)
Projected traffic3,563 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 Tributary Twin Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is SR503 over Tributary Twin Creek 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 February 2025.

How much traffic does SR503 over Tributary Twin Creek carry?

About 2,567 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is SR503 over Tributary Twin Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns SR503 over Tributary Twin Creek?

It is owned by the State Highway Agency.