Local over Prarie Creek
Benton County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Local over Prarie Creek in Benton County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2002, making it 23 years old at the 2025 inventory.
- It carries about 33 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 158 of the 373 inventoried bridges in Benton County rated fair (42.4%); 81 (21.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2023, on a 24-month routine inspection cycle.
- 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 → (42.28676, -91.92944)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel slab |
| Length | about 43 ft |
| Location | 086090502 |
| NBI structure number | 000000000364470 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Benton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 380 over Drainage Ditch | 1982 | 21,300 | Good |
| I-380 over Prairie Creek | 1983 | 17,900 | Good |
| US 30 & 218 over Stream | 1991 | 15,400 | Fair |
| I 380 NB over Ia 150 | 1982 | 8,550 | Good |
| I 380 SB over Ia 150 | 1982 | 8,550 | Good |
| US 151 over Knapp Creek | 1995 | 7,800 | Good |
All bridges nearby: Benton County, IA bridge conditions · every bridge in Benton County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.