M 30 over Mesabi Trail
Itasca County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M 30 over Mesabi Trail in Itasca 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 1918, making it 107 years old at the 2025 inventory.
- It carries about 8,600 vehicles a day (traffic count year 2017).
- Its listed owner is a city or municipal highway agency.
- It is one of 79 of the 171 inventoried bridges in Itasca County rated fair (46.2%); 8 (4.7%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2023, 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 → (47.28983, -93.42776)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 31 ft |
| Location | In Coleraine |
| NBI structure number | 5293 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | November 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 Itasca County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 169 over Mississippi River | 1932 | 16,400 | Good |
| Msas 119 over Mississippi River | 1975 | 10,300 | Fair |
| US 2 over Bass Brook | 1931 | 9,600 | Fair |
| US 169 over Csah 61 | 1966 | 9,100 | Good |
| US 169 over Pokegama Lake | 2006 | 8,800 | Fair |
| M 30 over US 169 | 1966 | 8,600 | Fair |
All bridges nearby: Itasca County, MN bridge conditions · every bridge in Itasca County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.