I-80 over Clear Creek
Iowa County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-80 over Clear Creek in Iowa County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1963, making it 62 years old at the 2025 inventory.
- It carries about 33,800 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 90 of the 239 inventoried bridges in Iowa County rated good (37.7%); 45 (18.8%) are rated poor.
- 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 → (41.68696, -91.9948)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 20 ft |
| Location | 0.8 Mi. E of Jct. Ia 149 |
| NBI structure number | 000000000029890 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Iowa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 80 over Stream | 1963 | 33,000 | Fair |
| I-80 over No Name Creek | 1963 | 31,400 | Fair |
| I-80 over Stream | 1962 | 30,300 | Fair |
| I-80 over Old Mans Creek | 1962 | 30,100 | Fair |
| I-80 over Stream | 1961 | 29,700 | Good |
| EB I-80 over V 52 (h Ave) | 1963 | 14,750 | Fair |
All bridges nearby: Iowa County, IA bridge conditions · every bridge in Iowa County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.