Mn 51 over Th 36
Ramsey County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 51 over Th 36 in Ramsey 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 1958, making it 67 years old at the 2025 inventory.
- It carries about 15,773 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 197 of the 344 inventoried bridges in Ramsey County rated fair (57.3%); 21 (6.1%) are rated poor.
- 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 → (45.01025, -93.16663)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 229 ft |
| Location | at the Jct Th 36; 51 SB |
| NBI structure number | 9012 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Ramsey County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 35W over County Rd I | 2019 | 144,000 | Good |
| I 35E over BNSF RR; Minnehaha Av | 2014 | 135,004 | Good |
| I 35E over BNSF RR; Cayuga St | 2015 | 135,004 | Good |
| I 94 over Fairview Avenue | 1967 | 134,387 | Fair |
| I 35W over Rice Creek | 1963 | 128,000 | Fair |
| I 94 over Johnson Pkwy | 1973 | 109,512 | Fair |
All bridges nearby: Ramsey County, MN bridge conditions · every bridge in Ramsey County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.