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Turtle Road over East Branch Augres River

Iosco County, Michigan · rated Good in the 2025 National Bridge Inventory

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

Turtle Road over East Branch Augres River in Iosco County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2008, making it 17 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2007).
Its listed owner is the county highway agency.
It is one of 12 of the 47 inventoried bridges in Iosco County rated good (25.5%); 3 (6.4%) 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	Prestressed concrete multiple box beam
Length	about 71 ft
Location	600 Ft W of E Sec Line
NBI structure number	000000000004156
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US-23 over Tawas River	1984	15,836	Fair
F 41 over Van Ettan Creek	1979	12,300	Fair
US-23 over Au Sable River	1972	8,367	Fair
M-55\|hemlock St over Tawas River	1950	8,047	Fair
M-65 over Hale Creek	1952	6,737	Fair
US-23 over Private Road	1931	5,497	Fair