US Bridges

CR 600E over Robbins Ditch

Poor

Starke County, Indiana · 00.01 S of CR 800 N · Structure no. 7500008

Built
1952
73 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
862
2016 count
Owner
County
County Highway Agency

About this bridge

CR 600E over Robbins Ditch is a concrete continuous slab carrying CR 600E over Robbins Ditch in Starke County, Indiana. It was built in 1952, so it is 73 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 862 vehicles a day, roughly 5% of them trucks, projected to reach 1,256 by 2036. The structure is 80 ft (24.3 m) long and 26 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCR 600E
CrossesRobbins Ditch
Location00.01 S of CR 800 N
RouteCounty Highway 469
StateIndiana
Coordinates41.41792, -86.58227
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length80 ft (24.3 m)
Longest span29 ft (8.9 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic862 (2016)
Projected traffic1,256 by 2036
Trucks5%
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 statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 600E over Robbins Ditch built?

It was built in 1952, making it 73 years old in 2025.

What condition is CR 600E over Robbins Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does CR 600E over Robbins Ditch carry?

About 862 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is CR 600E over Robbins Ditch?

The structure is 80 ft (24.3 m) long with a longest span of 29 ft (8.9 m) and a deck 26 ft wide.

Who owns CR 600E over Robbins Ditch?

It is owned by the County Highway Agency.