US Bridges

Carroll Road over Steele Ditch

FairPosted for load

Marion County, Indiana · 00.05 S of 46th Street · Structure no. 4900170

Built
1973
52 years old, rebuilt 1993
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
4,150
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carroll Road over Steele Ditch is a prestressed concrete continuous box beam or girders - multiple carrying Carroll Road over Steele Ditch in Marion County, Indiana. It was built in 1973 and reconstructed in 1993, so it is 52 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. Its operating status is: posted for load restriction.

It carries about 4,150 vehicles a day, roughly 10% of them trucks, projected to reach 6,167 by 2039. The structure is 102 ft (31 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCarroll Road
CrossesSteele Ditch
Location00.05 S of 46th Street
RouteCity Street 0
StateIndiana
Coordinates39.84051, -85.95348
Functional classUrban Collector

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.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.1 US tons
Inventory rating23.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length102 ft (31 m)
Longest span40 ft (12.1 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,150 (2019)
Projected traffic6,167 by 2039
Trucks10%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carroll Road over Steele Ditch built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1993.

What condition is Carroll Road over Steele 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 July 2024.

How much traffic does Carroll Road over Steele Ditch carry?

About 4,150 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Carroll Road over Steele Ditch?

The structure is 102 ft (31 m) long with a longest span of 40 ft (12.1 m) and a deck 30 ft wide.

Who owns Carroll Road over Steele Ditch?

It is owned by the City or Municipal Highway Agency.