Mn 23 over BNSF RR
Carlton County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 23 over BNSF RR in Carlton 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 2015, making it 10 years old at the 2025 inventory.
- It carries about 1,650 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 72 of the 148 inventoried bridges in Carlton County rated good (48.6%); 13 (8.8%) are rated poor.
- 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 → (46.62087, -92.32499)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 196 ft |
| Location | 15.9 Mi NE of S Co Line |
| NBI structure number | 09015 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Carlton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 35 over Portage River | 1968 | 16,400 | Fair |
| Mn 33 over I 35 | 1965 | 16,100 | Fair |
| I 35 over St Louis River | 1971 | 14,250 | Fair |
| I 35 over St Louis River | 1971 | 14,250 | Fair |
| I 35 over Korby Road | 1973 | 14,250 | Good |
| I 35 over Korby Road | 1973 | 14,250 | Good |
All bridges nearby: Carlton County, MN bridge conditions · every bridge in Carlton County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.