Sth 100 Nb-mayfair over Menomonee River
Milwaukee County, Wisconsin · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sth 100 Nb-mayfair over Menomonee River in Milwaukee County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 11,300 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 568 of the 897 inventoried bridges in Milwaukee County rated fair (63.3%); 43 (4.8%) are rated poor.
- 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 → (43.08441, -88.04757)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 211 ft |
| Location | 3.4M N Jct Ush 18 (f) |
| NBI structure number | B40033900000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Milwaukee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 94-e-w Freeway over Lrd N 32ND St | 1956 | 168,000 | Fair |
| Ih 94-e-w Freeway over Lrd Hawley Rd | 1960 | 161,000 | Fair |
| IH41/94 NB & SB over Ih Ramp SW IH41/94 NB to | 2012 | 138,000 | Fair |
| Ih 41 over Ih 43 NB | 2011 | 138,000 | Fair |
| Ih 41/43/894 over Honey Creek | 1966 | 128,000 | Fair |
| Ih 43-n-s Freeway over Ramp Ih 43nbl-sth 57 | 1961 | 126,000 | Fair |
All bridges nearby: Milwaukee County, WI bridge conditions · every bridge in Milwaukee County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.