WB US 20 over Brushy Creek
Webster County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- WB US 20 over Brushy Creek in Webster County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1986, making it 39 years old at the 2025 inventory.
- It carries about 4,900 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 87 of the 190 inventoried bridges in Webster County rated good (45.8%); 48 (25.3%) 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 June 2023, on a 24-month routine inspection cycle.
- 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 → (42.44921, -94.01508)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 118 ft |
| Location | 0.3 mi. W of jct. SR P73 |
| NBI structure number | 000000000605758 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 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 Webster County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 1ST Ave S over 21ST St & RR | 1968 | 9,860 | Fair |
| US 20 over Holliday Creek | 1986 | 9,800 | Good |
| US 20 over Drainage Ditch #4 | 1986 | 9,500 | Good |
| 5TH Ave over Drainage Ditch | 1955 | 8,894 | Poor |
| N 15TH St over Soldier Creek | 1974 | 8,798 | Poor |
| US 20 over Drainage Ditch 69 | 2011 | 7,900 | Good |
All bridges nearby: Webster County, IA bridge conditions · every bridge in Webster County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.