US Bridges

Johnson Creek Blvd over HWY 064

Fair

Clackamas County, Oregon · 0.4 MI S of Portland Scl · Structure no. 09712B064 01624

Built
1974
51 years old, rebuilt 1990
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
364 ft
2 main spans
Daily traffic
26,094
2022 count
Owner
State
State Highway Agency

About this bridge

Johnson Creek Blvd over HWY 064 is a prestressed concrete continuous box beam or girders - multiple carrying Johnson Creek Blvd over HWY 064 in Clackamas County, Oregon. It was built in 1974 and reconstructed in 1990, so it is 51 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 26,094 vehicles a day, roughly 4% of them trucks, projected to reach 161,300 by 2040. The structure is 364 ft (110.9 m) long and 96 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesJohnson Creek Blvd
CrossesHWY 064
Location0.4 MI S of Portland Scl
RouteCounty Highway 205
StateOregon
Coordinates45.45676, -122.57287
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length364 ft (110.9 m)
Longest span173 ft (52.7 m)
Deck width96 ft (29.2 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,094 (2022)
Projected traffic161,300 by 2040
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Johnson Creek Blvd over HWY 064 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 1990.

What condition is Johnson Creek Blvd over HWY 064 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Johnson Creek Blvd over HWY 064 carry?

About 26,094 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Johnson Creek Blvd over HWY 064?

The structure is 364 ft (110.9 m) long with a longest span of 173 ft (52.7 m) and a deck 96 ft wide.

Who owns Johnson Creek Blvd over HWY 064?

It is owned by the State Highway Agency.