US Bridges

CR 600W over Richman Ditch

Fair

LaPorte County, Indiana · 00.10 S US 30 · Structure no. 4600163

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
35 ft
2 main spans
Daily traffic
661
2019 count
Owner
County
County Highway Agency

About this bridge

CR 600W over Richman Ditch is a steel culvert carrying CR 600W over Richman Ditch in LaPorte County, Indiana. It was built in 1988, so it is 37 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 661 vehicles a day, roughly 5% of them trucks, projected to reach 815 by 2040. The structure is 35 ft (10.7 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 600W
CrossesRichman Ditch
Location00.10 S US 30
RouteCounty Highway 29
CountyLaPorte County
StateIndiana
Coordinates41.43172, -86.81391
Functional classRural Major 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating59 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span15 ft (4.7 m)
Deck width90 ft (27.4 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic661 (2019)
Projected traffic815 by 2040
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 CR 600W over Richman Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is CR 600W over Richman 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 September 2024.

How much traffic does CR 600W over Richman Ditch carry?

About 661 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is CR 600W over Richman Ditch?

The structure is 35 ft (10.7 m) long with a longest span of 15 ft (4.7 m) and a deck 90 ft wide.

Who owns CR 600W over Richman Ditch?

It is owned by the County Highway Agency.