US Bridges

Robinsrock LN over Robin Run

Fair

Marion County, Indiana · 00.47 N of 62nd ST · Structure no. 4900622

Built
1995
30 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
371
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Robinsrock LN over Robin Run is a concrete culvert carrying Robinsrock LN over Robin Run in Marion County, Indiana. It was built in 1995, so it is 30 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 371 vehicles a day, roughly 5% of them trucks, projected to reach 550 by 2039. The structure is 43 ft (13.1 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRobinsrock LN
CrossesRobin Run
Location00.47 N of 62nd ST
RouteCity Street 0
StateIndiana
Coordinates39.87381, -86.24982
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadOther
Structure length43 ft (13.1 m)
Longest span12 ft (3.6 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic371 (2019)
Projected traffic550 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Robinsrock LN over Robin Run built?

It was built in 1995, making it 30 years old in 2025.

What condition is Robinsrock LN over Robin Run 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 August 2024.

How much traffic does Robinsrock LN over Robin Run carry?

About 371 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Robinsrock LN over Robin Run?

The structure is 43 ft (13.1 m) long with a longest span of 12 ft (3.6 m) and a deck 29 ft wide.

Who owns Robinsrock LN over Robin Run?

It is owned by the City or Municipal Highway Agency.