Buchanan Ave over Boone River
Wright County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Buchanan Ave over Boone River in Wright County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 0 (failed condition, out of service) on the 0-9 scale.
- It was built in 1912, making it 113 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 48 of the 175 inventoried bridges in Wright County rated poor (27.4%); 48 (27.4%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2022, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (42.85717, -93.94623)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 0 | 0 | Failed condition, out of service |
| Superstructure | 0 | 0 | Failed condition, out of service |
| Substructure | 0 | 0 | Failed condition, out of service |
Bridge details
| Structure | Steel through truss |
| Length | about 127 ft |
| Location | 093262004 |
| NBI structure number | 000000000359190 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | May 2022 |
| 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 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.