Mount Liberty Road over Mount Liberty Creek
Brown County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mount Liberty Road over Mount Liberty Creek in Brown County, Indiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1929 and reconstructed in 2010, making it 96 years old at the 2025 inventory.
- It carries about 150 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 26 of the 114 inventoried bridges in Brown County rated good (22.8%); 17 (14.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated poor in the 2024 inventory and is now good (deck 7 to 8, superstructure 3 to 8, substructure 5 to 7).
- Its most recent inspection on record is dated August 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 → (39.18208, -86.1309)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 8 | Very good condition |
| Superstructure | 3 | 8 | Very good condition |
| Substructure | 5 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 22 ft |
| Location | 00.10 S 4 Mile Rd |
| NBI structure number | 0700071 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 7: scour countermeasures installed |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Brown County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 46 over Greasy Creek | 1964 | 14,040 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 11,699 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 10,596 | Fair |
| SR 46 over North Fork Salt Creek | 1964 | 10,520 | Fair |
| SR 46 over N Fork Salt Creek | 1928 | 9,341 | Fair |
| SR 46 over Gnaw Bone Creek | 1960 | 8,485 | Good |
All bridges nearby: Brown County, IN bridge conditions · every bridge in Brown County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.