311 Avenue over Ck
Potter County, South Dakota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 311 Avenue over Ck in Potter County, South Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1936, making it 89 years old at the 2025 inventory.
- It carries about 143 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 9 of the 24 inventoried bridges in Potter County rated good (37.5%); 0 (0.0%) are rated poor.
- 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 → (44.95539, -99.94009)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 25 ft |
| Location | 1.0E & 4.1S Gettysburg |
| NBI structure number | 000000054230201 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Potter County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US083 over Artichoke Ck | 1989 | 1,490 | Fair |
| US083 over Little Cheyenne Ck | 2003 | 985 | Fair |
| US083 over Little Cheyenne Ck | 2003 | 985 | Good |
| US083 over Trib Little Cheyenne Ck | 2003 | 985 | Good |
| US212 over Ck | 2001 | 934 | Fair |
| US212 over Ck | 2001 | 934 | Good |
All bridges nearby: Potter County, SD bridge conditions · every bridge in Potter County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.