T 310 over Stony Creek
Clay County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T 310 over Stony Creek in Clay County, Minnesota, 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 1971, making it 54 years old at the 2025 inventory.
- It carries about 109 vehicles a day (traffic count year 2022).
- Its listed owner is a town or township highway agency.
- It is one of 121 of the 224 inventoried bridges in Clay County rated good (54.0%); 11 (4.9%) 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 → (46.716, -96.50514)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Timber slab |
| Length | about 25 ft |
| Location | 1.6 Mi N of Jct Csah 52 |
| NBI structure number | L9393 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Clay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 94 over Co Ditch # 47 | 2003 | 36,000 | Good |
| I 94 over Red River;str | 1958 | 34,455 | Fair |
| I 94 over Red River;str | 1958 | 34,455 | Fair |
| Msas 126 over I 94 | 1973 | 22,815 | Fair |
| Msas 135 over BNSF RR; Cd #4 | 1997 | 17,960 | Fair |
| US 10 over Co Ditch # 41 | 1997 | 17,041 | Good |
All bridges nearby: Clay County, MN bridge conditions · every bridge in Clay County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.