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Eighth Street over Boardman River

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

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

Eighth Street over Boardman River in Grand Traverse 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 1974 and reconstructed in 2021, making it 51 years old at the 2025 inventory.
It carries about 15,609 vehicles a day (traffic count year 2020).
Its listed owner is a city or municipal highway agency.
It is one of 17 of the 33 inventoried bridges in Grand Traverse County rated good (51.5%); 2 (6.1%) 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 118 ft
Location	In Traverse City
NBI structure number	000000000003071
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Us-31\|m-37\|m-72\|gr over Boardman River	1951	26,650	Good
Three Mile Road over Mitchell Creek	2006	24,586	Good
S Airport Road over Boardman River	1977	21,860	Fair
Beitner Road over Boardman River	1980	19,628	Poor
S Airport Road over Boardman River	1961	18,938	Fair
M-37 over Mdot RR Corridor	1965	16,500	Fair