US Bridges

CR 100 East over Lost River

Fair

Orange County, Indiana · 0.30 N of CR 400 N · Structure no. 5900031

Built
1978
47 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
375
2015 count
Owner
County
County Highway Agency

About this bridge

CR 100 East over Lost River is a prestressed concrete box beam or girders - multiple carrying CR 100 East over Lost River in Orange County, Indiana. It was built in 1978, so it is 47 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 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 375 vehicles a day, roughly 5% of them trucks, projected to reach 493 by 2035. The structure is 156 ft (47.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 100 East
CrossesLost River
Location0.30 N of CR 400 N
RouteCounty Highway 51
CountyOrange County
StateIndiana
Coordinates38.61885, -86.43894
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length156 ft (47.4 m)
Longest span48 ft (14.6 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2015)
Projected traffic493 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 100 East over Lost River built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR 100 East 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 May 2024.

How much traffic does CR 100 East over Lost River carry?

About 375 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is CR 100 East over Lost River?

The structure is 156 ft (47.4 m) long with a longest span of 48 ft (14.6 m) and a deck 27 ft wide.

Who owns CR 100 East over Lost River?

It is owned by the County Highway Agency.