Home › Oregon › Sherman County › Or 206 (hwy 300) over Grass Valley Canyo

Or 206 (hwy 300) over Grass Valley Canyoncreek

Sherman County, Oregon · rated Fair in the 2025 National Bridge Inventory

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

Or 206 (hwy 300) over Grass Valley Canyoncreek in Sherman County, Oregon, 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 1959, making it 66 years old at the 2025 inventory.
It carries about 419 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 33 of the 48 inventoried bridges in Sherman County rated fair (68.8%); 2 (4.2%) 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	Continuous concrete tee beam
Length	about 185 ft
Location	055 Mi SE Wasco
NBI structure number	08614 300 00551
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-84 (hwy 002) over Deschutes River	1964	16,485	Fair
I-84 (hwy 002) over Spanish Hollow Creek	1964	14,294	Fair
I-84 (hwy 002) over Conn Rd	1963	14,253	Good
I-84 (hwy 002) over Helms Creek	1964	14,253	Good
US 97 (hwy 042) over UPRR	2014	9,754	Good
US 97 (hwy 042) over I-84 (hwy 002)	2014	9,754	Good