US Bridges

CR 400S over Koselki Ditch

Good

Porter County, Indiana · 00.40 W CR 450 E · Structure no. 6400172

Built
2015
10 years old
Condition
Good
inspected May 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
29 ft
1 main span
Daily traffic
270
2018 count
Owner
County
County Highway Agency

About this bridge

CR 400S over Koselki Ditch is a aluminum, wrought iron, or cast iron culvert carrying CR 400S over Koselki Ditch in Porter County, Indiana. It was built in 2015, so it is 10 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 270 vehicles a day, roughly 6% of them trucks, projected to reach 510 by 2038. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCR 400S
CrossesKoselki Ditch
Location00.40 W CR 450 E
RouteCounty Highway 28
CountyPorter County
StateIndiana
Coordinates41.37624, -86.98841
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span28 ft (8.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2018)
Projected traffic510 by 2038
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 400S over Koselki Ditch built?

It was built in 2015, making it 10 years old in 2025.

What condition is CR 400S over Koselki Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does CR 400S over Koselki Ditch carry?

About 270 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is CR 400S over Koselki Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.6 m) and a deck 24 ft wide.

Who owns CR 400S over Koselki Ditch?

It is owned by the County Highway Agency.