Csah 3 over Long Prairie River
Douglas County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 3 over Long Prairie River in Douglas County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 600 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 20 of the 40 inventoried bridges in Douglas County rated good (50.0%); 3 (7.5%) 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 September 2022, on a 48-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 → (45.99094, -95.18578)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 61 ft |
| Location | 2.0 Mi E of Jct Csah 13;3 |
| NBI structure number | 21J12 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Douglas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 29 over I 94 | 2015 | 9,800 | Good |
| I 94 over Th 114 | 1967 | 9,543 | Good |
| I 94 over Latoka Lake | 2018 | 9,543 | Good |
| I 94 over Latoka Lake | 2019 | 9,543 | Good |
| I 94 over Th 114 | 1967 | 9,300 | Good |
| Mn 27 over I 94 | 1995 | 9,000 | Fair |
All bridges nearby: Douglas County, MN bridge conditions · every bridge in Douglas County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.