US Bridges

HWY 064 SB over 92nd Ave

Fair

Multnomah County, Oregon · 0.2 MI N of Portland Scl · Structure no. 09711A064 01680

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
359 ft
3 main spans
Daily traffic
71,915
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 064 SB over 92nd Ave is a prestressed concrete continuous box beam or girders - multiple carrying HWY 064 SB over 92nd Ave in Multnomah County, Oregon. It was built in 1974, 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 71,915 vehicles a day, roughly 8% of them trucks, projected to reach 77,400 by 2042. The structure is 359 ft (109.4 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY 064 SB
Crosses92nd Ave
Location0.2 MI N of Portland Scl
RouteInterstate 205
CountyMultnomah County
StateOregon
Coordinates45.46469, -122.56856
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length359 ft (109.4 m)
Longest span175 ft (53.3 m)
Deck width75 ft (23 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71,915 (2022)
Projected traffic77,400 by 2042
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 HWY 064 SB over 92nd Ave built?

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

What condition is HWY 064 SB over 92nd Ave 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 HWY 064 SB over 92nd Ave carry?

About 71,915 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is HWY 064 SB over 92nd Ave?

The structure is 359 ft (109.4 m) long with a longest span of 175 ft (53.3 m) and a deck 75 ft wide.

Who owns HWY 064 SB over 92nd Ave?

It is owned by the State Highway Agency.