Home › Michigan › Mason County › Washington Ave over Pere Marquette Lk Ba

Washington Ave over Pere Marquette Lk Bayou

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

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

Washington Ave over Pere Marquette Lk Bayou in Mason 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 2013, making it 12 years old at the 2025 inventory.
It carries about 6,340 vehicles a day (traffic count year 2012).
Its listed owner is a city or municipal highway agency.
It is one of 21 of the 66 inventoried bridges in Mason County rated good (31.8%); 4 (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 210 ft
Location	In Ludington
NBI structure number	000000000006690
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Old US-31 over CSX RR	1935	11,200	Good
Old US-31 over Durham Creek	1925	8,600	Fair
Old US-31 over Pere Marquette River	1925	7,076	Fair
Old US-31 over Pere Marquette River	1924	6,828	Fair
US-31 over S Br Lincoln River	1992	6,578	Fair
US-31 over N Br Lincoln River	1992	6,578	Fair