US Bridges

HWY 081 over UPRR

Fair

Multnomah County, Oregon · 3.9 MI N Portland Cc · Structure no. 05290 01EX00386

Built
1916
109 years old
Condition
Fair
inspected January 2025
Type
Girder and Floorbeam System
Concrete Continuous
Length
218 ft
9 main spans
Daily traffic
16,285
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 081 over UPRR is a concrete continuous girder and floorbeam system carrying HWY 081 over UPRR in Multnomah County, Oregon. It was built in 1916, so it is 109 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 5 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 16,285 vehicles a day, roughly 8% of them trucks, projected to reach 23,900 by 2042. The structure is 218 ft (66.3 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHWY 081
CrossesUPRR
Location3.9 MI N Portland Cc
RouteState Highway 99
CountyMultnomah County
StateOregon
Coordinates45.57885, -122.66135
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length218 ft (66.3 m)
Longest span25 ft (7.5 m)
Deck width58 ft (17.7 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,285 (2022)
Projected traffic23,900 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY 081 over UPRR built?

It was built in 1916, making it 109 years old in 2025.

What condition is HWY 081 over UPRR 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 UPRR carry?

About 16,285 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is HWY 081 over UPRR?

The structure is 218 ft (66.3 m) long with a longest span of 25 ft (7.5 m) and a deck 58 ft wide.

Who owns HWY 081 over UPRR?

It is owned by the State Highway Agency.