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HomeMichiganAlger County › Old US-41 over Whitefish River

Old US-41 over Whitefish River

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

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (46.18359, -86.97023)

Component ratings

ComponentRating (2025)FHWA scale meaning
Deck7Good condition
Superstructure7Good condition
Substructure7Good condition

Bridge details

StructurePrestressed concrete multiple box beam
Lengthabout 79 ft
Location0.75 Mi S of Trenary
NBI structure number000000000000066
Condition classGood

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

Busiest bridges in Alger County

BridgeBuiltVehicles/dayCondition
M-28 over Anna River19497,171Fair
East Munising Ave over Anna River19785,715Fair
M-28 over Au Train River19325,200Fair
US-41 over Huber Creek19873,609Fair
M-28 over Sand River19393,093Fair
M-28 over Laughing Whitefish River19393,093Good

All bridges nearby: Alger County, MI bridge conditions · every bridge in Alger County · Michigan bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.