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Garlock Road over Butternut Creek

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

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

Garlock Road over Butternut Creek in Montcalm County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2016, making it 9 years old at the 2025 inventory.
It carries about 850 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 45 of the 121 inventoried bridges in Montcalm County rated good (37.2%); 7 (5.8%) 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 single box beam
Length	about 40 ft
Location	Bloomer Twp Sec 11
NBI structure number	000000000013556
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US-131SB & M-46sb over Tamarack Creek	1972	26,700	Fair
US-131NB & M-46nb over Tamarack Creek	1972	26,700	Fair
US-131 & M-46 SB over Kendaville Rd	1971	26,700	Fair
US-131 & M-46 NB over Kendaville Rd	1971	26,700	Fair
M-57 over Flat River	1948	11,727	Good
M-91 over Flat River	1994	11,433	Fair