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Or 66 (hwy 021) over Klamath River

Klamath County, Oregon · rated Good in the 2025 National Bridge Inventory

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

Or 66 (hwy 021) over Klamath River in Klamath County, Oregon, 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 2005, making it 20 years old at the 2025 inventory.
It carries about 364 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 98 of the 248 inventoried bridges in Klamath County rated good (39.5%); 11 (4.4%) 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	Continuous steel stringer or multi-beam girder
Length	about 557 ft
Location	160 Mi Jackson Klammath L
NBI structure number	19789 021 04386
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Or 140 (hwy 020) over Usrs Canal	1930	20,461	Fair
Or 140 (hwy 020) over Link River	1931	19,357	Fair
Or 140 (hwy 020) over City St & UPRR	1957	19,357	Fair
Shasta Way over A Canal	1979	16,068	Good
S Side Bypass over UPRR	1986	11,928	Fair
S Side Bypass over BNSF & Klamath River	1986	11,850	Good