Northwest Blvd over Cso Tank #6 Shadle Bluff

Spokane County, Washington · rated Good in the 2025 National Bridge Inventory

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

• Northwest Blvd over Cso Tank #6 Shadle Bluff in Spokane County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
• It was built in 2015, making it 10 years old at the 2025 inventory.
• It carries about 11,844 vehicles a day (traffic count year 2022).
• Its listed owner is a city or municipal highway agency.
• It is one of 156 of the 309 inventoried bridges in Spokane County rated good (50.5%); 21 (6.8%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• Its class is unchanged from 2024 (good), but component ratings moved: culvert 8 to 7.
• Its most recent inspection on record is dated July 2024, on a 24-month routine inspection cycle.
• 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.

View this bridge on a map → (47.69233, -117.4656)

Component ratings

Bridge details

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

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