SR 121 over Altamaha Riv Overflow
Tattnall County, Georgia · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 121 over Altamaha Riv Overflow in Tattnall County, Georgia, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1988, making it 37 years old at the 2025 inventory.
- It carries about 3,990 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 62 of the 72 inventoried bridges in Tattnall County rated good (86.1%); 1 (1.4%) 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 November 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 → (31.88016, -82.07853)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 271 ft |
| Location | 9.3 Mi SW of Glennville |
| NBI structure number | 000000026700480 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| 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 Tattnall County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 25 over S Prong Beards Creek | 1987 | 7,060 | Good |
| US 25 over Mill Creek | 1988 | 5,810 | Good |
| SR 23 over Thomas Creek | 1997 | 5,340 | Good |
| SR 196 over Beards Creek | 1999 | 4,660 | Good |
| SR 196 over Brickyard Branch | 1956 | 4,600 | Good |
| SR 23 over Battle Creek | 1993 | 4,490 | Good |
All bridges nearby: Tattnall County, GA bridge conditions · every bridge in Tattnall County · Georgia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.