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Bridge conditions in Sauk County, Wisconsin

275 inventoried bridges · 25 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

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 August 20, 2026.
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.

Every bridge in Sauk County → - all 275, busiest first, each with its own condition record.

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.