Sth 85 over Cranberry Creek
Dunn County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth 85 over Cranberry Creek in Dunn County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2010, making it 15 years old at the 2025 inventory.
- It carries about 2,800 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 73 of the 244 inventoried bridges in Dunn County rated good (29.9%); 20 (8.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: substructure 7 to 8.
- Its most recent inspection on record is dated August 2024, on a 48-month routine inspection cycle.
- 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 → (44.70542, -91.76416)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 117 ft |
| Location | 1.6M E Jct Cth O |
| NBI structure number | B17020500000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 48 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 Dunn County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 94 over Br Muddy Creek | 1958 | 37,900 | Fair |
| Ih 94 over Muddy Creek | 1959 | 37,900 | Fair |
| Ih 94 over E Br Wilson Creek | 1959 | 35,500 | Poor |
| Ih 94 over E Br Muddy Creek | 1959 | 31,900 | Fair |
| Ih 94 WB over Elk Mound Marsh Equalizr | 1958 | 18,950 | Fair |
| Ih 94 EB over Elk Mound Marsh Equalizr | 1958 | 18,950 | Fair |
All bridges nearby: Dunn County, WI bridge conditions · every bridge in Dunn County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.