Cth O/ Fourth Aven over Wolf River
Chippewa County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cth O/ Fourth Aven over Wolf River in Chippewa County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2009, making it 16 years old at the 2025 inventory.
- It carries about 1,380 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 200 of the 359 inventoried bridges in Chippewa County rated fair (55.7%); 40 (11.1%) 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 November 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 → (44.96206, -90.94403)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 40 ft |
| Location | 3500 Ft SE 355TH Street |
| NBI structure number | B09027500000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 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 Wisconsin department of transportation.
Busiest bridges in Chippewa County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 29 over Unnamed Creek | 2004 | 28,300 | Good |
| Ush 53 over Br Chippewa River | 1971 | 22,200 | Fair |
| Ush 53 over Tilden Creek | 1970 | 17,600 | Fair |
| Ush 53 SB over Duncan Creek | 1971 | 17,600 | Good |
| Ush 53 N over Duncan Creek | 1971 | 17,600 | Good |
| Ush 53 S over Sth 124 | 2002 | 17,400 | Fair |
All bridges nearby: Chippewa County, WI bridge conditions · every bridge in Chippewa County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.