Sth 106 over Tributary to Rock River
Jefferson County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth 106 over Tributary to Rock River in Jefferson County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 2,200 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 101 of the 182 inventoried bridges in Jefferson County rated good (55.5%); 9 (4.9%) 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 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 → (42.92194, -88.86694)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 50 ft |
| Location | 500 Ft E Jct Falk Rd |
| NBI structure number | B28019500000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| Inspection interval (item 91) | 24 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 Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 94 WB over Lrd Newville Rd | 2024 | 43,300 | Good |
| Ih 94 WB over Lrd Rock Lake Rd | 2024 | 43,300 | Good |
| Ih 94 EB over Lrd Willow Glen Rd | 1963 | 24,600 | Fair |
| Ih 94 WB over Lrd Willow Glen Rd | 1963 | 24,600 | Fair |
| Ih 94 EB over Cth P | 1964 | 21,400 | Fair |
| Ih 94 WB over Cth P | 1964 | 21,400 | Good |
All bridges nearby: Jefferson County, WI bridge conditions · every bridge in Jefferson County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.