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Portage Road over Barton-howard Lakes Chan

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

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

Portage Road over Barton-howard Lakes Chan in Kalamazoo 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 2005, making it 20 years old at the 2025 inventory.
It carries about 1,302 vehicles a day (traffic count year 2019).
Its listed owner is the county highway agency.
It is one of 65 of the 152 inventoried bridges in Kalamazoo County rated good (42.8%); 11 (7.2%) 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 24 ft
Location	Schoolcraft Twp Sec 27
NBI structure number	000000000013234
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-94 over Norfolk Southern	2022	67,300	Good
I-94 over Portage Road	2022	67,300	Good
US-131 (mot) over Amtrak & Kl Ave	2024	48,600	Good
I-94 EB & Cd Ramp over US-131 NB	2008	39,044	Good
I-94 WB over US-131 NB	2007	39,044	Good
I-94 Bl (stadium) over US-131	2015	36,361	Fair