I-285 over Chattahoochee River
Cobb County, Georgia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-285 over Chattahoochee River in Cobb County, Georgia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1962 and reconstructed in 1994, making it 63 years old at the 2025 inventory.
- It carries about 211,000 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 45 of the 414 inventoried bridges in Cobb County rated fair (10.9%); 0 (0.0%) 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 April 2023, 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 → (33.90174, -84.44239)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 785 ft |
| Location | 7 Mi SE of Marietta |
| NBI structure number | 000000006701090 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Georgia department of transportation.
Busiest bridges in Cobb County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 (nbl) over M-9495 Terrell Mill Rd | 1965 | 325,000 | Good |
| I-75 over Poorhouse Creek | 1965 | 325,000 | Good |
| I-75 over Rottenwood Creek | 1965 | 263,000 | Good |
| I-75- Rmps- CR2038 over Poplar Creek | 1963 | 262,000 | Good |
| I-75 over CR 1043 Banberry Road | 1965 | 236,000 | Fair |
| I-75 over Roswell Road | 1967 | 236,000 | Good |
All bridges nearby: Cobb County, GA bridge conditions · every bridge in Cobb County · Georgia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.