US Bridges

SR 56 over Lost River

Fair

Orange County, Indiana · 00.40 W US 150 · Structure no. 020120

Built
1923
102 years old, rebuilt 2012
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
232 ft
2 main spans
Daily traffic
11,870
2010 count
Owner
State
State Highway Agency

About this bridge

SR 56 over Lost River is a concrete arch - deck carrying SR 56 over Lost River in Orange County, Indiana. It was built in 1923 and reconstructed in 2012, so it is 102 years old, older than the Indiana average of 46.6 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 11,870 vehicles a day, roughly 14% of them trucks, projected to reach 17,090 by 2030. The structure is 232 ft (70.7 m) long and 44 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 56
CrossesLost River
Location00.40 W US 150
RouteState Highway 56
CountyOrange County
StateIndiana
Coordinates38.57341, -86.61333
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length232 ft (70.7 m)
Longest span82 ft (24.9 m)
Deck width44 ft (13.3 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,870 (2010)
Projected traffic17,090 by 2030
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 56 over Lost River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 2012.

What condition is SR 56 over Lost River 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 September 2024.

How much traffic does SR 56 over Lost River carry?

About 11,870 vehicles per day (2010 count), of which roughly 14% are trucks.

How long is SR 56 over Lost River?

The structure is 232 ft (70.7 m) long with a longest span of 82 ft (24.9 m) and a deck 44 ft wide.

Who owns SR 56 over Lost River?

It is owned by the State Highway Agency.