Sth 4TH Street over Wisconsin River 42
Lincoln County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth 4TH Street over Wisconsin River 42 in Lincoln County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2011, making it 14 years old at the 2025 inventory.
- It carries about 15,223 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 71 of the 158 inventoried bridges in Lincoln County rated good (44.9%); 9 (5.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (deck 6 to 8, superstructure 7 to 8).
- Its most recent inspection on record is dated June 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 → (45.47744, -89.72903)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 8 | Very good condition |
| Superstructure | 7 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 506 ft |
| Location | 0.2M N Jct Sth 86 to E |
| NBI structure number | B35015400000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Lincoln County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ush 51 NB over Cth H | 1996 | 13,900 | Good |
| Ush 51 SB over Cth H | 1996 | 13,900 | Good |
| Ush 51 SB over Little Pine Creek | 1999 | 12,600 | Good |
| Ush 51 NB over Wisconsin River 35 | 1974 | 8,700 | Fair |
| Ush 51 NB over Canadian National RR | 1974 | 8,450 | Good |
| Ush 51 SB over Canadian National RR | 1974 | 8,450 | Fair |
All bridges nearby: Lincoln County, WI bridge conditions · every bridge in Lincoln County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.