US Bridges

US 30 over Slocum Ditch

Good

LaPorte County, Indiana · 00.50 W US 421 · Structure no. 008200

Built
1927
98 years old, rebuilt 2001
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
19,462
2004 count
Owner
State
State Highway Agency

About this bridge

US 30 over Slocum Ditch is a concrete culvert carrying US 30 over Slocum Ditch in LaPorte County, Indiana. It was built in 1927 and reconstructed in 2001, so it is 98 years old, older 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 19,462 vehicles a day, roughly 25% of them trucks, projected to reach 27,422 by 2028. The structure is 29 ft (8.8 m) long and 99 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 30
CrossesSlocum Ditch
Location00.50 W US 421
RouteU.S. Route 30
StateIndiana
Coordinates41.43406, -86.90069
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width99 ft (30.1 m)
Roadway width82 ft (24.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,462 (2004)
Projected traffic27,422 by 2028
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
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 30 over Slocum Ditch built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 2001.

What condition is US 30 over Slocum 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 March 2024.

How much traffic does US 30 over Slocum Ditch carry?

About 19,462 vehicles per day (2004 count), of which roughly 25% are trucks.

How long is US 30 over Slocum Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 99 ft wide.

Who owns US 30 over Slocum Ditch?

It is owned by the State Highway Agency.