300TH St (lwc) over Crooked CR
Cedar County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 300TH St (lwc) over Crooked CR in Cedar County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1998, making it 27 years old at the 2025 inventory.
- It carries about 11 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 109 of the 300 inventoried bridges in Cedar County rated fair (36.3%); 60 (20.0%) 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 → (41.65856, -91.10139)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Steel culvert |
| Length | about 44 ft |
| Location | 079020807 |
| NBI structure number | 000000000101731 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Cedar County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Stream | 1960 | 39,700 | Fair |
| I-80 over Stream | 1960 | 39,700 | Fair |
| I-80 over Middle Wapsinonoc Creek | 1960 | 39,700 | Fair |
| I-80 over Drainage Ditch | 1959 | 36,000 | Fair |
| I-80 over Little Elkhorn Creek | 1959 | 36,000 | Fair |
| I-80 over Drainage Ditch | 1960 | 36,000 | Fair |
All bridges nearby: Cedar County, IA bridge conditions · every bridge in Cedar County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.