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Lrd Thornapple Gra over Thornapple River

Sawyer County, Wisconsin · rated Poor in the 2025 National Bridge Inventory

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

Lrd Thornapple Gra over Thornapple River in Sawyer County, Wisconsin, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 3 (serious condition) on the 0-9 scale.
It was built in 1950, making it 75 years old at the 2025 inventory.
It carries about 23 vehicles a day (traffic count year 2024).
Its listed owner is a town or township highway agency.
It is one of 17 of the 98 inventoried bridges in Sawyer County rated poor (17.3%); 17 (17.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 50 ft
Location	6.7M N Jct Cth J
NBI structure number	P57091700000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Sth 27 over Namekagon River	1996	13,500	Poor
Sth 77 over Namekagon River	2000	6,200	Fair
Ush 63 over Namekagon River	1976	3,900	Good
Cth B over Round Lake Narrows	1986	2,296	Fair
Cth B over Chief River	1988	1,803	Good
Sth 27 over Nail Creek	1990	1,600	Good