I-75 over M-1506- CSX RR (340554R)
Whitfield County, Georgia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-75 over M-1506- CSX RR (340554R) in Whitfield County, Georgia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1964 and reconstructed in 1987, making it 61 years old at the 2025 inventory.
- It carries about 88,100 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 55 of the 130 inventoried bridges in Whitfield County rated fair (42.3%); 6 (4.6%) 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 May 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (34.79832, -85.0042)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 311 ft |
| Location | In NW Dalton |
| NBI structure number | 000000031300470 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Georgia department of transportation.
Busiest bridges in Whitfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 over Mill Creek | 1964 | 88,100 | Good |
| I-75 over Tanyard Creek Trib | 1963 | 88,100 | Fair |
| I-75 over SR 201 | 1963 | 88,100 | Fair |
| I-75 over SR 3 (US 41) | 2017 | 85,100 | Good |
| I-75 over Swamp Creek | 1961 | 78,600 | Good |
| I-75 over NS Railroad (719719P) | 1961 | 78,600 | Fair |
All bridges nearby: Whitfield County, GA bridge conditions · every bridge in Whitfield County · Georgia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.