Local over Dd #121
Wright County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Local over Dd #121 in Wright County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1984, making it 41 years old at the 2025 inventory.
- It carries about 63 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 66 of the 175 inventoried bridges in Wright County rated fair (37.7%); 48 (27.4%) are rated poor.
- 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 → (42.87767, -93.7759)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 29 ft |
| Location | 093251501 |
| NBI structure number | 000000000358901 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Wright County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| NB I-35 over Drainage Ditch #29 | 1974 | 8,250 | Good |
| SB I-35 over Drainage Ditch #29 | 1974 | 8,250 | Fair |
| I 35 NB over Iowa River | 1974 | 8,250 | Good |
| SB I-35 over Iowa River | 1974 | 8,250 | Fair |
| Ia 3 over White Fox Creek | 1986 | 4,020 | Good |
| Ia 3 over Eagle Creek | 1932 | 3,450 | Fair |
All bridges nearby: Wright County, IA bridge conditions · every bridge in Wright County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.