Lrd Mill Street over Ashippun River
Waukesha County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Lrd Mill Street over Ashippun River in Waukesha County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 341 vehicles a day (traffic count year 2022).
- Its listed owner is a town or township highway agency.
- It is one of 176 of the 370 inventoried bridges in Waukesha County rated good (47.6%); 20 (5.4%) 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: superstructure 9 to 8, substructure 9 to 8.
- Its most recent inspection on record is dated October 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 → (43.17196, -88.49975)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 9 | 8 | Very good condition |
| Substructure | 9 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 72 ft |
| Location | 0.5 M S Jct Cth Cw |
| NBI structure number | B67000400000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 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 Waukesha County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 94 over Poplar Creek | 1961 | 133,000 | Fair |
| Ih 94 over Br Poplar Creek | 1961 | 133,000 | Fair |
| Ih 94 over Pewaukee River | 1957 | 112,000 | Fair |
| Ih 41/USH 45 over Nor-x-way Channel | 2018 | 86,800 | Good |
| Ih 94 WB over Lrd Maple Ave | 1962 | 75,000 | Good |
| Ih 94 WB over Sth 83 | 1962 | 75,000 | Fair |
All bridges nearby: Waukesha County, WI bridge conditions · every bridge in Waukesha County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.