Home › Oregon › Clackamas County › Or 224 (hwy 171) over Or 99E (hwy 81)

Or 224 (hwy 171) over Or 99E (hwy 81)

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

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

Or 224 (hwy 171) over Or 99E (hwy 81) 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 deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1969, making it 56 years old at the 2025 inventory.
It carries about 29,691 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 433 ft
Location	HWY 171 over HWY 081
NBI structure number	09668 171 00011
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