Mn 91 over I 90
Nobles County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 91 over I 90 in Nobles County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 1,600 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 206 of the 306 inventoried bridges in Nobles County rated good (67.3%); 5 (1.6%) 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 2023, 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 → (43.64402, -95.9331)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 226 ft |
| Location | at Jct I 90 |
| NBI structure number | 53826 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Nobles County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 90 over Stream | 1965 | 11,700 | Good |
| Mn 60 over Okabena Creek | 1996 | 8,700 | Good |
| Msas 118 over Stream | 1999 | 6,443 | Good |
| Csah 35 over Whiskey Ditch | 1942 | 6,300 | Fair |
| I 90 over Th 59 | 1968 | 6,099 | Fair |
| I 90 over Th 59 | 1968 | 5,750 | Fair |
All bridges nearby: Nobles County, MN bridge conditions · every bridge in Nobles County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.