Bridge conditions in Waukesha County, Wisconsin
370 inventoried bridges · 20 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 370 bridges in Waukesha County: 176 rated good, 174 fair, and 20 poor.
- 20 of the 370 bridges in Waukesha County, Wisconsin, are rated in poor condition (5.4%) in the 2025 National Bridge Inventory, as of .
- 176 bridges (47.6%) are rated good and 174 (47.0%) fair.
- The median Waukesha County bridge was built in 1987.
- The busiest poor-rated bridge is Cth F NB over Ih 94 (built 1977), carrying about 17,650 vehicles a day.
Good 47.6% · Fair 47.0% · Poor 5.4% of 370 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Cth F NB over Ih 94 | 1977 | 17,650 | Poor |
| Cth Vv WB (silver over Menomonee River | 1964 | 9,600 | Poor |
| Cth C (genesee St) over Ih 94 | 1963 | 9,000 | Poor |
| Cth I (beloit Road over Calhoun Creek | 1976 | 9,000 | Poor |
| Lrd Gebhardt Rd over Dousman Ditch | 1966 | 5,100 | Poor |
| Lrd Overview Dr over Butler Ditch | 1988 | 2,837 | Poor |
| Lrd Campbell Dr over Butler Ditch | 1988 | 2,837 | Poor |
| Cth Jj (capitol Dr over Coco Creek | 1940 | 1,900 | Poor |
| Cth Ef (hartling R over Bark River | 1984 | 1,400 | Poor |
| Cth I over Mukwonago River | 1981 | 1,200 | Poor |
| Lrd E Wisconsin Av over Oconomowoc River | 1942 | 1,015 | Poor |
| Lrd Center Drive over Ih 43 | 1971 | 650 | Poor |
| Lrd Stone Bank Roa over UP RR | 1983 | 650 | Poor |
| Lrd Center Dr over Fox River | 1961 | 490 | Poor |
| Cth Z over Scuppernong River | 1978 | 471 | Poor |
| Lrd Glendale Rd over Pebble Brook | 1984 | 440 | Poor |
| Lrd Village Hall D over Underwood Creek | 1971 | 135 | Poor |
| Lrd Lapham St over Oconomowoc River | 1950 | 101 | Poor |
| Lrd Norwegian Rd over Ashippun River | 1929 | 98 | Poor |
| Lrd River Rd over Fox River | 1950 | – | Poor |
Busiest bridges in the 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 |
| Ih 94 WB over Lrd Brookfield Rd | 1962 | 66,500 | Fair |
| Ih 94 EB over Lrd Brookfield Rd | 1962 | 66,500 | Fair |
| Ih 94 WB over Lrd Calhoun Rd | 2008 | 66,500 | Fair |
| Ih 94 EB over Lrd Calhoun Rd | 2009 | 66,500 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Wisconsin: Wisconsin bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.