US Bridges

US 41 over Cady Marsh Ditch

Good

Lake County, Indiana · 01.80 S I-80 · Structure no. 015656

Built
2004
21 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
3,371
2021 count
Owner
State
State Highway Agency

About this bridge

US 41 over Cady Marsh Ditch is a concrete culvert carrying US 41 over Cady Marsh Ditch in Lake County, Indiana. It was built in 2004, so it is 21 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 3,371 vehicles a day, roughly 6% of them trucks, projected to reach 44,945 by 2030. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 41
CrossesCady Marsh Ditch
Location01.80 S I-80
RouteU.S. Route 41
StateIndiana
Coordinates41.54976, -87.47129
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,371 (2021)
Projected traffic44,945 by 2030
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 41 over Cady Marsh Ditch built?

It was built in 2004, making it 21 years old in 2025.

What condition is US 41 over Cady Marsh 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 January 2023.

How much traffic does US 41 over Cady Marsh Ditch carry?

About 3,371 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US 41 over Cady Marsh Ditch?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m).

Who owns US 41 over Cady Marsh Ditch?

It is owned by the State Highway Agency.