Csah 21 over Elm Creek
Martin County, Minnesota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 21 over Elm Creek in Martin County, Minnesota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1953, making it 72 years old at the 2025 inventory.
- It carries about 70 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 39 of the 162 inventoried bridges in Martin County rated poor (24.1%); 39 (24.1%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (43.72008, -94.67471)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 3 | Serious condition |
Bridge details
| Structure | Timber slab |
| Length | about 65 ft |
| Location | 1.1 Mi S of Jct Csah 38 |
| NBI structure number | 89354 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Martin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 15 over Center Creek | 1973 | 11,176 | Good |
| I 90 over E Fk Des Moines River | 1973 | 8,600 | Fair |
| I 90 over E Fk Des Moines River | 1972 | 8,600 | Fair |
| I 90 over Stream | 1972 | 8,600 | Good |
| I 90 over E Fk Des Moines River | 1973 | 8,600 | Good |
| I 90 over South Creek | 1972 | 8,111 | Fair |
All bridges nearby: Martin County, MN bridge conditions · every bridge in Martin County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.