US Bridges

I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB

Fair

Umatilla County, Oregon · 10.70 Mi.S. Wa State Line · Structure no. 16452 070 01070

Built
1987
38 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
440 ft
4 main spans
Daily traffic
6,006
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB is a prestressed concrete continuous box beam or girders - multiple carrying I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB in Umatilla County, Oregon. It was built in 1987, so it is 38 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 6,006 vehicles a day, roughly 25% of them trucks, projected to reach 19,300 by 2036. The structure is 440 ft (134.1 m) long and 35 ft wide.

CarriesI-84 (hwy 6) Conn
CrossesHWY 6 and HWY 70 EB
Location10.70 Mi.S. Wa State Line
RouteInterstate 84
StateOregon
Coordinates45.79532, -119.3931
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length440 ft (134.1 m)
Longest span154 ft (46.9 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,006 (2022)
Projected traffic19,300 by 2036
Trucks25%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 6) Conn over HWY 6 and HWY 70 EB built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-84 (hwy 6) Conn over HWY 6 and HWY 70 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 March 2024.

How much traffic does I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB carry?

About 6,006 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB?

The structure is 440 ft (134.1 m) long with a longest span of 154 ft (46.9 m) and a deck 35 ft wide.

Who owns I-84 (hwy 6) Conn over HWY 6 and HWY 70 EB?

It is owned by the State Highway Agency.