Ih Ush 51-ih 39 NB over Sth 73
Waushara County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ih Ush 51-ih 39 NB over Sth 73 in Waushara County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1984, making it 41 years old at the 2025 inventory.
- It carries about 12,800 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 25 of the 55 inventoried bridges in Waushara County rated fair (45.5%); 3 (5.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 7 to 6.
- Its most recent inspection on record is dated May 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 → (44.21358, -89.52432)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 175 ft |
| Location | 5.8M N Jct Cth V to E |
| NBI structure number | B69002200000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Waushara County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih Ush51-ih39 SB over Cth Ch | 1957 | 13,300 | Fair |
| Ih Ush51-ih39 NB over Lrd Czech Ave | 1986 | 13,300 | Fair |
| Ih Ush 51-ih 39 SB over Lrd Czech Ave | 1986 | 13,300 | Fair |
| Ih Ush51-ih39nb over Cth Ch | 1986 | 13,300 | Fair |
| Ih Ush51-ih39 SB over Lrd Buttercup Ave | 1966 | 10,200 | Fair |
| Ih Ush 51-ih 39 SB over Sth 73 | 1984 | 6,400 | Fair |
All bridges nearby: Waushara County, WI bridge conditions · every bridge in Waushara County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.