US 30 over Slocum Ditch
LaPorte County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 30 over Slocum Ditch in LaPorte County, Indiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1927 and reconstructed in 2001, making it 98 years old at the 2025 inventory.
- It carries about 19,462 vehicles a day (traffic count year 2004).
- Its listed owner is the state highway agency.
- It is one of 78 of the 227 inventoried bridges in LaPorte County rated good (34.4%); 15 (6.6%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (41.43406, -86.90069)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 28 ft |
| Location | 00.50 W US 421 |
| NBI structure number | 008200 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in LaPorte County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-94 WB over East Br Trail Creek | 1969 | 37,476 | Good |
| I-94 EB over Nictd RR | 1969 | 37,476 | Good |
| I-94 WB over Norris Ditch No 1 | 1971 | 27,527 | Good |
| I-94 WB over Norris Ditch No 2 | 1971 | 27,527 | Fair |
| I-94 EB over Norris Ditch No 3 | 1971 | 27,527 | Good |
| I-94 WB over Norris Ditch No 3 | 1971 | 27,527 | Good |
All bridges nearby: LaPorte County, IN bridge conditions · every bridge in LaPorte County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.