342ND St over Drainage Ditch
Worth County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 342ND St over Drainage Ditch in Worth County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 35 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 44 of the 116 inventoried bridges in Worth County rated good (37.9%); 17 (14.7%) 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 → (43.25883, -93.37858)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 9 | Excellent condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 60 ft |
| Location | East of Fir Ave. |
| NBI structure number | 000000000355851 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Worth County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Drainage Ditch | 1972 | 20,600 | Good |
| I-35 over Goose Creek | 1972 | 20,100 | Fair |
| NB I 35 over over UP RR | 1970 | 10,700 | Fair |
| SB I 35 over over UP RR | 1970 | 10,500 | Fair |
| NB I-35 over Elk Creek | 1972 | 9,950 | Fair |
| SB I-35 over Elk Creek | 1972 | 9,750 | Fair |
All bridges nearby: Worth County, IA bridge conditions · every bridge in Worth County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.