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Cecil Creek Rd over Sinlahekin Creek

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

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

Cecil Creek Rd over Sinlahekin Creek in Okanogan 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 1975, making it 50 years old at the 2025 inventory.
It carries about 54 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 74 of the 161 inventoried bridges in Okanogan County rated fair (46.0%); 12 (7.5%) 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 stringer or multi-beam girder
Length	about 34 ft
Location	2 miles south of Loomis
NBI structure number	089156000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 97 over Okanogan River	1964	8,828	Fair
US 97 over SR 155	1964	8,828	Poor
US 97 over Gn Rr-county Road	1964	7,453	Good
SR 155 Spur over Okanogan River	1923	5,987	Fair
US 97 over Bonaparte CR	1957	5,771	Good
US 97 over Watson Draw	1965	5,644	Poor