Cth B over Middle River
Douglas County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cth B over Middle River in Douglas County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 1,971 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 62 of the 136 inventoried bridges in Douglas County rated good (45.6%); 20 (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 → (46.50322, -91.85786)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 26 ft |
| Location | 1.2M W Jct Ush 53 |
| NBI structure number | B16003900000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Douglas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 535 over St Louis R; RR Street | 1961 | 28,098 | Poor |
| Ush 2-ush 53-e 2ND over Nemadji River | 1989 | 23,300 | Fair |
| Ush 2-ush 53-e 2ND over Bluff Creek | 1989 | 23,300 | Good |
| Ush 2-ush 53-e 2ND over Lrd Service Road | 1989 | 20,400 | Good |
| Ush 53-e 2ND St over Lstt RR | 1962 | 19,500 | Fair |
| Ush 53-e 2ND St over Soo Line | 1962 | 19,500 | Fair |
All bridges nearby: Douglas County, WI bridge conditions · every bridge in Douglas County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.