M 790 over Mill Ruins Tailrace
Hennepin County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M 790 over Mill Ruins Tailrace in Hennepin 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 2003, making it 22 years old at the 2025 inventory.
- It carries about 315 vehicles a day (traffic count year 2015).
- It is one of 380 of the 941 inventoried bridges in Hennepin County rated good (40.4%); 41 (4.4%) 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 → (44.97974, -93.25532)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 40 ft |
| Location | Mill Ruins Park S.brg. |
| NBI structure number | 27A56 |
| 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 Minnesota department of transportation.
Busiest bridges in Hennepin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 494 over Knox Ave (brt) | 2021 | 177,000 | Good |
| I 35W over Storm Sewer | 2009 | 170,406 | Good |
| I 35W over Storm Sewer | 2009 | 170,406 | Good |
| I 494 over Th 100 | 2003 | 167,328 | Good |
| I 694 over Th 252; SB Off Ramp | 1980 | 157,688 | Fair |
| I 94 over MISS R ramp W River Rd | 1963 | 141,184 | Fair |
All bridges nearby: Hennepin County, MN bridge conditions · every bridge in Hennepin County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.