US Bridges

SR-55 over Lost Creek

Fair

Miami County, Ohio · .83MI.W. of Jct. SR-589 · Structure no. 5501563

Built
1929
96 years old, rebuilt 1982
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
119 ft
2 main spans
Daily traffic
2,960
2015 count
Owner
State
State Highway Agency

About this bridge

SR-55 over Lost Creek is a prestressed concrete continuous box beam or girders - multiple carrying SR-55 over Lost Creek in Miami County, Ohio. It was built in 1929 and reconstructed in 1982, so it is 96 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 2,960 vehicles a day, roughly 3% of them trucks, projected to reach 4,108 by 2035. The structure is 119 ft (36.3 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR-55
CrossesLost Creek
Location.83MI.W. of Jct. SR-589
RouteState Highway 55
CountyMiami County
StateOhio
Coordinates40.05014, -84.14023
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length119 ft (36.3 m)
Longest span57 ft (17.4 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,960 (2015)
Projected traffic4,108 by 2035
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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-55 over Lost Creek built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1982.

What condition is SR-55 over Lost 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 March 2024.

How much traffic does SR-55 over Lost Creek carry?

About 2,960 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is SR-55 over Lost Creek?

The structure is 119 ft (36.3 m) long with a longest span of 57 ft (17.4 m) and a deck 44 ft wide.

Who owns SR-55 over Lost Creek?

It is owned by the State Highway Agency.