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Hwy 064 (I-205 SB) over Prosperity Park Rd

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

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

Hwy 064 (I-205 SB) over Prosperity Park Rd in Clackamas County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1969, making it 56 years old at the 2025 inventory.
It carries about 40,491 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 237 of the 367 inventoried bridges in Clackamas County rated fair (64.6%); 17 (4.6%) 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 multiple box beam
Length	about 252 ft
Location	1.1 Mi S of Stafford Rd
NBI structure number	09740A064 00208
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Barlow Trail Rd over Hackett Creek	1965	165,900	Fair
Hwy 001 over Willamette River	1953	127,233	Fair
Boones Ferry Road over I-5 (Hwy 1)	1971	127,233	Fair
Strawberry Lane over Hwy 064	1962	113,512	Good
Boeckman Road over I-5 (hwy 001)	1969	110,869	Fair
Hwy 064 over Main St	1972	108,786	Fair