Irr Bia Rte 24 over West Branch Red River
Shawano County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr Bia Rte 24 over West Branch Red River in Shawano County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1948 and reconstructed in 1990, making it 77 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2024).
- It is one of 76 of the 155 inventoried bridges in Shawano County rated fair (49.0%); 14 (9.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2024, 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 → (44.90821, -88.91267)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Timber slab |
| Length | about 20 ft |
| Location | 10 Km NE of Bowler |
| NBI structure number | 00000000000F310 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 2024 |
| 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 Shawano County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 47-sth 55 over Shawano Creek | 2000 | 9,300 | Fair |
| Sth 22 over Wolf River | 2011 | 8,200 | Good |
| Sth 47 & 55 S over Sth 29 | 1996 | 7,900 | Good |
| Sth 29 EB over N Br Embarrass River | 1998 | 7,800 | Good |
| Sth 29 EB over Middle Br Embarrass R | 1998 | 7,800 | Good |
| Sth 29 EB over Cth T | 1997 | 7,600 | Good |
All bridges nearby: Shawano County, WI bridge conditions · every bridge in Shawano County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.