Ia 39 over East Otter Creek
Crawford County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 39 over East Otter Creek in Crawford County, Iowa, 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 1951, making it 74 years old at the 2025 inventory.
- It carries about 1,540 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 143 of the 301 inventoried bridges in Crawford County rated fair (47.5%); 23 (7.6%) 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 → (42.21084, -95.29593)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 124 ft |
| Location | 0.4 mi. E of S.R. M35 |
| NBI structure number | 000000000021550 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Crawford County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ave C over West Boyer River | 1985 | 7,347 | Fair |
| Ave C over Cc RR | 1999 | 7,158 | Fair |
| US 30 over Drainage Ditch | 1958 | 4,670 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,500 | Fair |
| US 30 & 59 over East Boyer River | 1962 | 4,500 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,400 | Fair |
All bridges nearby: Crawford County, IA bridge conditions · every bridge in Crawford County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.