US 10 over St Croix River
Washington County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 10 over St Croix River in Washington County, Minnesota, 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 1990, making it 35 years old at the 2025 inventory.
- It carries about 17,382 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 61 of the 113 inventoried bridges in Washington County rated fair (54.0%); 4 (3.5%) are rated poor.
- 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 → (44.7489, -92.80457)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Steel movable bascule |
| Length | about 683 ft |
| Location | at Wisconsin State Line |
| NBI structure number | 82010 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 494 over Mississippi R; UP RR | 2008 | 51,236 | Good |
| I 494 over Mississippi R; UP RR | 2003 | 51,236 | Fair |
| I 694 over I 94; Collector Roads | 2020 | 45,534 | Good |
| I 494 over Csah 25 (century Ave) | 1960 | 45,500 | Fair |
| I 694 over I 94; Collector Roads | 2019 | 43,894 | Good |
| I 94 over Th 95 | 1982 | 43,000 | Fair |
All bridges nearby: Washington County, MN bridge conditions · every bridge in Washington County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.