Herrington Road over SR 316
Gwinnett County, Georgia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Herrington Road over SR 316 in Gwinnett 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 1960, making it 65 years old at the 2025 inventory.
- It carries about 2,047 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 35 of the 320 inventoried bridges in Gwinnett 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 November 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 → (33.96261, -84.07948)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 209 ft |
| Location | 3.8 Mi SE of Duluth |
| NBI structure number | 000000013500600 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| 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 Gwinnett County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-85 over Bromolow Creek | 1958 | 307,000 | Good |
| I-85 over Beaver Ruin Creek | 1959 | 303,000 | Good |
| I-85 Sbl over Sweetwater Creek | 1958 | 255,000 | Good |
| I-85 NB SB and Cd over Sugarloaf Parkway | 1999 | 172,000 | Good |
| I-85 NB & SB Nbcd over Fork Creek | 1990 | 170,000 | Good |
| I-85 Southbound over SR 419 NB (I-985) | 2018 | 162,000 | Good |
All bridges nearby: Gwinnett County, GA bridge conditions · every bridge in Gwinnett County · Georgia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.