US Bridges

CR 75 West over Ra Armstrong Ditch

Fair

Johnson County, Indiana · 0.50 N of CR 200 N · Structure no. 4100205

Built
2002
23 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
324
2012 count
Owner
County
County Highway Agency

About this bridge

CR 75 West over Ra Armstrong Ditch is a prestressed concrete box beam or girders - single or spread carrying CR 75 West over Ra Armstrong Ditch in Johnson County, Indiana. It was built in 2002, so it is 23 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 324 vehicles a day, roughly 2% of them trucks, projected to reach 438 by 2032. The structure is 41 ft (12.6 m) long and 31 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCR 75 West
CrossesRa Armstrong Ditch
Location0.50 N of CR 200 N
RouteCounty Highway 35
CountyJohnson County
StateIndiana
Coordinates39.51366, -86.11516
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span35 ft (10.8 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2012)
Projected traffic438 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 75 West over Ra Armstrong Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is CR 75 West over Ra Armstrong Ditch 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 June 2024.

How much traffic does CR 75 West over Ra Armstrong Ditch carry?

About 324 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is CR 75 West over Ra Armstrong Ditch?

The structure is 41 ft (12.6 m) long with a longest span of 35 ft (10.8 m) and a deck 31 ft wide.

Who owns CR 75 West over Ra Armstrong Ditch?

It is owned by the County Highway Agency.