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Ringle Road over Allen Extension Drain

Tuscola County, Michigan · rated Fair in the 2025 National Bridge Inventory

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

Ringle Road over Allen Extension Drain in Tuscola County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1994, making it 31 years old at the 2025 inventory.
It carries about 410 vehicles a day (traffic count year 2009).
Its listed owner is the county highway agency.
It is one of 149 of the 241 inventoried bridges in Tuscola County rated fair (61.8%); 10 (4.1%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 49 ft
Location	Sec 33-34 Akron Twp
NBI structure number	000000000010505
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
M-15 over Cass River	2015	14,550	Good
M-46 over Cheboygan & Branches Drn	1939	6,701	Poor
M-81 over Marsh Drain	2007	6,273	Good
M-25 over Quanicassee River	2013	5,571	Good
M-25 over (no Name) Drain	1932	5,571	Fair
M-25 over Wisner Drain	1985	5,571	Fair