US Bridges

I-84 Frontage RD over I-84 (w Emigrant I/C)

Fair

Umatilla County, Oregon · 100 MI W Union CO Line · Structure no. 08594 006F23505

Built
1962
63 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete Continuous
Length
297 ft
4 main spans
Daily traffic
233
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 Frontage RD over I-84 (w Emigrant I/C) is a concrete continuous tee beam carrying I-84 Frontage RD over I-84 (w Emigrant I/C) in Umatilla County, Oregon. It was built in 1962, so it is 63 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 233 vehicles a day, roughly 36% of them trucks, projected to reach 711 by 2030. The structure is 297 ft (90.5 m) long and 31 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

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CarriesI-84 Frontage RD
CrossesI-84 (w Emigrant I/C)
Location100 MI W Union CO Line
RouteState Highway 84
CountyUmatilla County
StateOregon
Coordinates45.55202, -118.46453
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length297 ft (90.5 m)
Longest span87 ft (26.5 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic233 (2022)
Projected traffic711 by 2030
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-84 Frontage RD over I-84 (w Emigrant I/C) built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-84 Frontage RD over I-84 (w Emigrant I/C) 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 April 2023.

How much traffic does I-84 Frontage RD over I-84 (w Emigrant I/C) carry?

About 233 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is I-84 Frontage RD over I-84 (w Emigrant I/C)?

The structure is 297 ft (90.5 m) long with a longest span of 87 ft (26.5 m) and a deck 31 ft wide.

Who owns I-84 Frontage RD over I-84 (w Emigrant I/C)?

It is owned by the State Highway Agency.