Mn 27 over Mississippi River
Morrison County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 27 over Mississippi River in Morrison County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1941 and reconstructed in 1983, making it 84 years old at the 2025 inventory.
- It carries about 14,200 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 60 of the 164 inventoried bridges in Morrison County rated fair (36.6%); 5 (3.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 6 to 5.
- Its most recent inspection on record is dated July 2024, 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 → (45.97713, -94.36836)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 545 ft |
| Location | In Little Falls |
| NBI structure number | 5907 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Morrison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 371 over Fletcher Creek | 2005 | 12,900 | Fair |
| US 10 over BNSF RR; Csah 76 | 1974 | 11,000 | Fair |
| US 10 over Mississippi River | 1973 | 11,000 | Fair |
| US 10 over Miss. River Back Channel | 2010 | 11,000 | Good |
| US 10 over Mn 27 | 1973 | 10,376 | Good |
| US 10 over Mn 27 | 1973 | 10,000 | Good |
All bridges nearby: Morrison County, MN bridge conditions · every bridge in Morrison County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.