Collier Ridge Rd over Branch W Fork Tanners CR
Dearborn County, Indiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Collier Ridge Rd over Branch W Fork Tanners CR in Dearborn County, Indiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1910, making it 115 years old at the 2025 inventory.
- It carries about 330 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 18 of the 145 inventoried bridges in Dearborn County rated poor (12.4%); 18 (12.4%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2024, on a 12-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (39.16847, -84.93115)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 48 ft |
| Location | 00.30 SW of Fox Rd |
| NBI structure number | 1500049 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Dearborn County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 50 EB over Tanners CR & Service Rd | 1938 | 40,650 | Good |
| I-275 over Ohio River CSX RR CR | 1976 | 40,222 | Poor |
| US 50 over Wilson Creek | 1935 | 35,211 | Fair |
| US 50 WB over Tanners CR Streets RR | 2009 | 31,750 | Good |
| US 50 over Hogan Creek | 1952 | 28,398 | Fair |
| US 50 over CSX RR & 2 Streets | 1962 | 21,622 | Fair |
All bridges nearby: Dearborn County, IN bridge conditions · every bridge in Dearborn County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.