US Bridges

Base Line Road over Six Mile Creek

Fair

Jennings County, Indiana · 00.14 W of CR 520 W · Structure no. 4000105

Built
1979
46 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
125
2019 count
Owner
County
County Highway Agency

About this bridge

Base Line Road over Six Mile Creek is a prestressed concrete box beam or girders - multiple carrying Base Line Road over Six Mile Creek in Jennings County, Indiana. It was built in 1979, so it is 46 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.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 200 by 2039. The structure is 51 ft (15.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBase Line Road
CrossesSix Mile Creek
Location00.14 W of CR 520 W
RouteCounty Highway 0
StateIndiana
Coordinates38.98388, -85.71899
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.6 m)
Longest span49 ft (15 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2019)
Projected traffic200 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 Line Road over Six Mile Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Base Line Road over Six Mile 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 April 2023.

How much traffic does Base Line Road over Six Mile Creek carry?

About 125 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Base Line Road over Six Mile Creek?

The structure is 51 ft (15.6 m) long with a longest span of 49 ft (15 m) and a deck 24 ft wide.

Who owns Base Line Road over Six Mile Creek?

It is owned by the County Highway Agency.