Bridge conditions in Sauk County, Wisconsin
275 inventoried bridges · 25 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
25 of the 275 bridges the federal inventory lists in Sauk County are rated poor; the rest split 138 good and 112 fair.
- 25 of the 275 bridges in Sauk County, Wisconsin, are rated in poor condition (9.1%) in the 2025 National Bridge Inventory, as of .
- 138 bridges (50.2%) are rated good and 112 (40.7%) fair.
- The median Sauk County bridge was built in 1990.
- The busiest poor-rated bridge is Sth 23-sth 33-main over Baraboo River (built 1985), carrying about 14,200 vehicles a day.
Good 50.2% · Fair 40.7% · Poor 9.1% of 275 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 |
|---|---|---|---|
| Sth 23-sth 33-main over Baraboo River | 1985 | 14,200 | Poor |
| Cth H over Dell Creek | 1971 | 4,000 | Poor |
| Cth B Main St over Br Honey Creek | 1969 | 1,500 | Poor |
| Cth Hh over Dell Creek | 1974 | 1,100 | Poor |
| Cth X over Baraboo River | 1956 | 790 | Poor |
| Cth W over Skillet Creek | 1939 | 738 | Poor |
| Cth Pf over N Br Honey Creek | 1952 | 440 | Poor |
| Cth Pf over N Br Honey Creek | 1948 | 420 | Poor |
| Cth O over Honey Creek | 1973 | 416 | Poor |
| Cth C over E Br Honey Creek | 1973 | 329 | Poor |
| Cth Pf Maple St over Baraboo River | 1940 | 292 | Poor |
| Cth E over Honey Creek | 1969 | 270 | Poor |
| Cth C over N Br Honey Creek | 1964 | 230 | Poor |
| Lrd Willow Rd over Honey Creek | 1975 | 227 | Poor |
| Lrd Gasser Rd over Skillet Creek | 1955 | 213 | Poor |
| Lrd Pickel Rd over Br Narrows Creek | 1950 | 155 | Poor |
| Lrd Pine Bluff Rd over Narrows Creek | 1967 | 136 | Poor |
| Lrd Stones Pocket over Otter Creek | 1917 | 133 | Poor |
| Lrd Diamond Hill R over Seeley Creek | 1930 | 125 | Poor |
| Lrd Bass Rd over Hay Creek | 1930 | 118 | Poor |
| Lrd Town Hall Rd over Dell Creek | 1965 | 83 | Poor |
| Lrd Yanke Drive (d over Otter Creek | 1940 | 40 | Poor |
| Lrd Smith Rd (dead over Lake Redstone Tributary | 1929 | 19 | Poor |
| Lrd David Dr (dead over Br Plum Creek | 1929 | 15 | Poor |
| Lrd Rott Rd (dead over Little Baraboo River | 1940 | 7 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 90 Eb-ih 94 EB over Ush 12 | 1960 | 23,500 | Fair |
| Ih 90 Wb-ih 94 WB over Ush 12 | 1960 | 23,500 | Fair |
| Ih 90 Eb-ih 94 EB over Sth 23 | 1961 | 23,500 | Fair |
| Ih 90 Wb-ih 94 WB over Sth 23 | 1961 | 23,500 | Good |
| Ih 90 Eb-ih 94 EB over Mirror Lake | 1961 | 23,500 | Fair |
| Ih 90 Wb-ih 94 WB over Mirror Lake | 1961 | 23,500 | Fair |
| Ih 90 Eb-ih 94 EB over Lrd Ishnala Rd | 1961 | 23,500 | Good |
| Ih 90 Wb-ih 94 WB over Lrd Ishnala Rd | 1961 | 23,500 | Fair |
| Ih 90 Eb-ih 94 EB over Sth 13 | 1961 | 21,450 | Fair |
| Ih 90 Wb-ih 94 WB over Sth 13 NB | 1961 | 21,450 | Fair |
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.