Maple Drive over Ison Branch
Spalding County, Georgia · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Maple Drive over Ison Branch in Spalding County, Georgia, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2010, making it 15 years old at the 2025 inventory.
- It carries about 1,540 vehicles a day (traffic count year 2024).
- Its listed owner is a city or municipal highway agency.
- It is one of 41 of the 87 inventoried bridges in Spalding County rated good (47.1%); 1 (1.1%) 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 July 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 → (33.21923, -84.24854)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 29 ft |
| Location | SE City Limits of Griffin |
| NBI structure number | 000000025550640 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Georgia department of transportation.
Busiest bridges in Spalding County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 over Towaliga River Trib | 1966 | 95,400 | Good |
| I-75 over Towaliga River | 1966 | 95,400 | Fair |
| US 19 over NS Railroad (abandoned) | 2014 | 36,200 | Good |
| US 19 SR 3 Griff over Shoal Creek | 1968 | 31,200 | Good |
| US 19 SR 3 Nbl over M-2508 W Poplar Street | 1968 | 29,500 | Fair |
| SR 16 over NS Railroad | 1928 | 25,800 | Fair |
All bridges nearby: Spalding County, GA bridge conditions · every bridge in Spalding County · Georgia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.