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Park St over Mill Creek

Walla Walla County, Washington · rated Fair in the 2025 National Bridge Inventory

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

Park St over Mill Creek in Walla Walla County, Washington, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 2007, making it 18 years old at the 2025 inventory.
It carries about 4,169 vehicles a day (traffic count year 2023).
Its listed owner is a city or municipal highway agency.
It is one of 56 of the 195 inventoried bridges in Walla Walla County rated fair (28.7%); 18 (9.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete single box beam
Length	about 83 ft
Location	Park at Mill CR
NBI structure number	087587000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SR 125 over Walla Walla River	1988	17,209	Good
SR 125 over Yellowhawk Creek	1988	17,209	Fair
Myra Rd over Mill Creek	2008	13,345	Fair
2ND Ave over Mill Creek	1915	10,563	Fair
Rose Street over Mill Creek	2021	10,500	Good
Wilbur Ave over Mill Creek	1955	10,053	Fair