US Bridges

I-84 (hwy 002) over Rowena Conn

Fair

Wasco County, Oregon · 057 MI West of the Dalles · Structure no. 07552A002 07662

Built
1954
71 years old, rebuilt 1976
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
24,970
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 002) over Rowena Conn is a concrete continuous slab carrying I-84 (hwy 002) over Rowena Conn in Wasco County, Oregon. It was built in 1954 and reconstructed in 1976, so it is 71 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 24,970 vehicles a day, roughly 22% of them trucks, projected to reach 29,700 by 2042. The structure is 90 ft (27.4 m) long and 84 ft wide.

Location

Open in Google Maps
CarriesI-84 (hwy 002)
CrossesRowena Conn
Location057 MI West of the Dalles
RouteInterstate 84
CountyWasco County
StateOregon
Coordinates45.67626, -121.27879
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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 rating52 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width84 ft (25.6 m)
Roadway width80 ft (24.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,970 (2022)
Projected traffic29,700 by 2042
Trucks22%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$461,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-84 (hwy 002) over Rowena Conn built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1976.

What condition is I-84 (hwy 002) over Rowena Conn 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 May 2023.

How much traffic does I-84 (hwy 002) over Rowena Conn carry?

About 24,970 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is I-84 (hwy 002) over Rowena Conn?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 84 ft wide.

Who owns I-84 (hwy 002) over Rowena Conn?

It is owned by the State Highway Agency.