FM over Otter Creek
Clarke County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over Otter Creek in Clarke County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1969, making it 56 years old at the 2025 inventory.
- It carries about 319 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 54 of the 168 inventoried bridges in Clarke County rated poor (32.1%); 54 (32.1%) 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 → (41.11678, -93.65377)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 103 ft |
| Location | 073242002 |
| NBI structure number | 000000000114990 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Clarke County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Drainage Ditch | 1957 | 18,600 | Fair |
| I 35 SB over South West Creek | 2013 | 9,550 | Fair |
| I 35 SB over West Creek | 2013 | 9,550 | Good |
| NB I-35 over South West Creek | 2012 | 9,400 | Good |
| NB I-35 over West Creek | 2012 | 9,400 | Fair |
| SB I-35 over White Breast Creek | 1969 | 8,850 | Fair |
All bridges nearby: Clarke County, IA bridge conditions · every bridge in Clarke County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.