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Summerton Road over Jordan Creek

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

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

Summerton Road over Jordan Creek in Isabella 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 1994, making it 31 years old at the 2025 inventory.
It carries about 113 vehicles a day (traffic count year 2002).
Its listed owner is the county highway agency.
It is one of 85 of the 183 inventoried bridges in Isabella County rated good (46.4%); 26 (14.2%) 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 49 ft
Location	Sec 30W Denver Twp
NBI structure number	000000000004353
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Pickard Avenue over Chippewa River	1979	16,211	Fair
M-20 over Chippewa River	1996	10,842	Good
US-127 NB over Little Salt River	1961	10,457	Fair
US-127 SB over Little Salt River	1961	10,457	Fair
Mission Road over Ann Arbor Railroad	2005	9,200	Good
Mission Road over North Br Chippewa River	2008	9,019	Good