US Bridges

SR 503 over Tributary Twin Creek

Poor

Preble County, Ohio · 1.66 MI S of West Alexand · Structure no. 6803636

Built
1959
66 years old, rebuilt 2008
Condition
Poor
inspected February 2025
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
2,567
2015 count
Owner
State
State Highway Agency

About this bridge

SR 503 over Tributary Twin Creek is a concrete continuous slab carrying SR 503 over Tributary Twin Creek in Preble County, Ohio. It was built in 1959 and reconstructed in 2008, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,567 vehicles a day, roughly 12% of them trucks, projected to reach 3,563 by 2035. The structure is 54 ft (16.5 m) long and 40 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesSR 503
CrossesTributary Twin Creek
Location1.66 MI S of West Alexand
RouteState Highway 503
CountyPreble County
StateOhio
Coordinates39.71523, -84.5358
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length54 ft (16.5 m)
Longest span18 ft (5.5 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 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 SR 503 over Tributary Twin Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2008.

What condition is SR 503 over Tributary Twin Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2025.

How much traffic does SR 503 over Tributary Twin Creek carry?

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

How long is SR 503 over Tributary Twin Creek?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.5 m) and a deck 40 ft wide.

Who owns SR 503 over Tributary Twin Creek?

It is owned by the State Highway Agency.