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Ih 39 NB / Ih 90 W over Lrd Siggelkow Rd

Dane County, Wisconsin · rated Good in the 2025 National Bridge Inventory

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

Ih 39 NB / Ih 90 W over Lrd Siggelkow Rd in Dane County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2020, making it 5 years old at the 2025 inventory.
It carries about 30,200 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 278 of the 593 inventoried bridges in Dane County rated good (46.9%); 42 (7.1%) are rated poor.
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.

Component ratings


Structure	Continuous prestressed concrete stringer or multi-beam girder
Length	about 231 ft
Location	3.5MI. W of Cth N to E
NBI structure number	B13072800000000
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.

Bridge	Built	Vehicles/day	Condition
Ush 12/18-w Beltli over Cmstpp RR	1975	131,000	Good
Ush 12/14/18/151 over Lrd Todd Dr	1971	129,000	Fair
Ush 12/18-s Beltli over Drainage Ditch	1988	117,000	Fair
Ih 39/90/94 over Starkweather Creek	1959	109,000	Fair
Ush 12/18 over Br Yahara River	1962	86,700	Fair
Ush 12/18 over Drainage Ditch	1987	86,700	Fair