US Bridges

HWY 6 Frontage RD over I-84 (hwy 6 Eb)

Fair

Umatilla County, Oregon · 151 MI SE JCT US 395 · Structure no. 09648 006F22471

Built
1973
52 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
169 ft
1 main span
Daily traffic
74
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 6 Frontage RD over I-84 (hwy 6 Eb) is a prestressed concrete box beam or girders - multiple carrying HWY 6 Frontage RD over I-84 (hwy 6 Eb) in Umatilla County, Oregon. It was built in 1973, so it is 52 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 74 vehicles a day, roughly 36% of them trucks, projected to reach 60 by 2030. The structure is 169 ft (51.5 m) long and 34 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

Open in Google Maps
CarriesHWY 6 Frontage RD
CrossesI-84 (hwy 6 Eb)
Location151 MI SE JCT US 395
RouteState Highway 84
CountyUmatilla County
StateOregon
Coordinates45.57986, -118.58955
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
Deck7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span122 ft (37.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (2022)
Projected traffic60 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 HWY 6 Frontage RD over I-84 (hwy 6 Eb) built?

It was built in 1973, making it 52 years old in 2025.

What condition is HWY 6 Frontage RD over I-84 (hwy 6 Eb) 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 HWY 6 Frontage RD over I-84 (hwy 6 Eb) carry?

About 74 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is HWY 6 Frontage RD over I-84 (hwy 6 Eb)?

The structure is 169 ft (51.5 m) long with a longest span of 122 ft (37.2 m) and a deck 34 ft wide.

Who owns HWY 6 Frontage RD over I-84 (hwy 6 Eb)?

It is owned by the State Highway Agency.