I-80 over Bear Creek
Dallas County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-80 over Bear Creek in Dallas 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 1965, making it 60 years old at the 2025 inventory.
- It carries about 29,500 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 96 of the 206 inventoried bridges in Dallas County rated good (46.6%); 18 (8.7%) 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 → (41.51765, -94.14283)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 20 ft |
| Location | 1.1 mi. W of Jct. SR P-57 |
| NBI structure number | 000000000022220 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Dallas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Panther Creek | 1965 | 32,100 | Good |
| EB I-80 over over UP RR | 1966 | 27,550 | Fair |
| WB I-80 over over UP RR | 1966 | 26,850 | Fair |
| EB I-80 over Sugar Creek | 1966 | 24,500 | Fair |
| WB I-80 over Sugar Creek | 1966 | 24,050 | Fair |
| EB I-80 over South Raccoon River | 1966 | 19,100 | Fair |
All bridges nearby: Dallas County, IA bridge conditions · every bridge in Dallas County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.