US Bridges

I-84 (hwy 002) WB over HWY 100 & UPRR

Fair

Multnomah County, Oregon · 3.7 MI E Multnomah Falls · Structure no. 02176 002 03512

Built
1949
76 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
564 ft
8 main spans
Daily traffic
13,687
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 002) WB over HWY 100 & UPRR is a steel continuous stringer/multi-beam or girder carrying I-84 (hwy 002) WB over HWY 100 & UPRR in Multnomah County, Oregon. It was built in 1949, so it is 76 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 13,687 vehicles a day, roughly 20% of them trucks, projected to reach 17,350 by 2042. The structure is 564 ft (171.9 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-84 (hwy 002) WB
CrossesHWY 100 & UPRR
Location3.7 MI E Multnomah Falls
RouteInterstate 84
CountyMultnomah County
StateOregon
Coordinates45.60072, -122.04746
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8 (+1 approach)
Design loadHS 20
Structure length564 ft (171.9 m)
Longest span71 ft (21.6 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,687 (2022)
Projected traffic17,350 by 2042
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 I-84 (hwy 002) WB over HWY 100 & UPRR built?

It was built in 1949, making it 76 years old in 2025.

What condition is I-84 (hwy 002) WB over HWY 100 & 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 October 2023.

How much traffic does I-84 (hwy 002) WB over HWY 100 & UPRR carry?

About 13,687 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is I-84 (hwy 002) WB over HWY 100 & UPRR?

The structure is 564 ft (171.9 m) long with a longest span of 71 ft (21.6 m) and a deck 39 ft wide.

Who owns I-84 (hwy 002) WB over HWY 100 & UPRR?

It is owned by the State Highway Agency.