US Bridges

HWY 081 over N. Marine Way

Fair

Multnomah County, Oregon · 5.4 MI N of Portland Cc · Structure no. 07400A01EX00575

Built
1990
35 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
147 ft
3 main spans
Daily traffic
14,204
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 081 over N. Marine Way is a concrete continuous slab carrying HWY 081 over N. Marine Way in Multnomah County, Oregon. It was built in 1990, so it is 35 years old, younger 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 14,204 vehicles a day, roughly 8% of them trucks, projected to reach 29,100 by 2042. The structure is 147 ft (44.8 m) long and 79 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHWY 081
CrossesN. Marine Way
Location5.4 MI N of Portland Cc
RouteState Highway 99
CountyMultnomah County
StateOregon
Coordinates45.60247, -122.67898
Functional classUrban Other Principal 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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length147 ft (44.8 m)
Longest span71 ft (21.6 m)
Deck width79 ft (24.1 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,204 (2022)
Projected traffic29,100 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 081 over N. Marine Way built?

It was built in 1990, making it 35 years old in 2025.

What condition is HWY 081 over N. Marine Way 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 January 2025.

How much traffic does HWY 081 over N. Marine Way carry?

About 14,204 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is HWY 081 over N. Marine Way?

The structure is 147 ft (44.8 m) long with a longest span of 71 ft (21.6 m) and a deck 79 ft wide.

Who owns HWY 081 over N. Marine Way?

It is owned by the State Highway Agency.