Csah 31 over I 35E SB off ramp
Dakota County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 31 over I 35E SB off ramp in Dakota County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1984, making it 41 years old at the 2025 inventory.
- It carries about 30,500 vehicles a day (traffic count year 2017).
- Its listed owner is the state highway agency.
- It is one of 142 of the 257 inventoried bridges in Dakota County rated fair (55.3%); 4 (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 June 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 → (44.83061, -93.16729)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 451 ft |
| Location | 2.5 Mi SW of Jct Th 494 |
| NBI structure number | 19818 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| 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 Dakota County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 494 over Csah 56 (concord Street) | 1980 | 103,528 | Fair |
| I 494 over UP Railroad Hardman Ave | 1988 | 103,528 | Fair |
| I 35W over UP RR Cliff Rd (CSAH32) | 1959 | 94,603 | Poor |
| I 494 over Th 13; UP RR | 1973 | 88,714 | Fair |
| I 35E over Marie Avenue | 1966 | 80,925 | Fair |
| US 52 over Pedestrian Trail | 1990 | 53,893 | Good |
All bridges nearby: Dakota County, MN bridge conditions · every bridge in Dakota County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.