US Bridges

Base Road over Little Flatrock River

FairPosted for load

Rush County, Indiana · 00.60 S of CR 600 S · Structure no. 7000164

Built
1989
36 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
250
2019 count
Owner
County
County Highway Agency

About this bridge

Base Road over Little Flatrock River is a prestressed concrete continuous box beam or girders - multiple carrying Base Road over Little Flatrock River in Rush County, Indiana. It was built in 1989, so it is 36 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2039. The structure is 113 ft (34.5 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBase Road
CrossesLittle Flatrock River
Location00.60 S of CR 600 S
RouteCounty Highway 0
StateIndiana
Coordinates39.51624, -85.44293
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.6 US tons
Inventory rating25.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length113 ft (34.5 m)
Longest span41 ft (12.6 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2019)
Projected traffic300 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Base Road over Little Flatrock River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Base Road over Little Flatrock 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 2023.

How much traffic does Base Road over Little Flatrock River carry?

About 250 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Base Road over Little Flatrock River?

The structure is 113 ft (34.5 m) long with a longest span of 41 ft (12.6 m) and a deck 25 ft wide.

Who owns Base Road over Little Flatrock River?

It is owned by the County Highway Agency.