US Bridges

I-84 (hwy 002) over Conn to Warrendale

Good

Multnomah County, Oregon · 6.4 MI W Cascade Locks · Structure no. 08692 002 03712

Built
1961
64 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
3 main spans
Daily traffic
27,493
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 002) over Conn to Warrendale is a prestressed concrete stringer/multi-beam or girder carrying I-84 (hwy 002) over Conn to Warrendale in Multnomah County, Oregon. It was built in 1961, so it is 64 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 27,493 vehicles a day, roughly 20% of them trucks, projected to reach 34,800 by 2042. The structure is 139 ft (42.4 m) long and 86 ft wide.

CarriesI-84 (hwy 002)
CrossesConn to Warrendale
Location6.4 MI W Cascade Locks
RouteInterstate 84
StateOregon
Coordinates45.61282, -122.01107
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span46 ft (14 m)
Deck width86 ft (26.1 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,493 (2022)
Projected traffic34,800 by 2042
Trucks20%
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 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) over Conn to Warrendale built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-84 (hwy 002) over Conn to Warrendale in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

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

About 27,493 vehicles per day (2022 count), of which roughly 20% are trucks.

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

The structure is 139 ft (42.4 m) long with a longest span of 46 ft (14 m) and a deck 86 ft wide.

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

It is owned by the State Highway Agency.