US Bridges

Off Ramp over Water Ave Conn EB

Fair

Multnomah County, Oregon · East End Morrison Br · Structure no. 08589Y614 00000

Built
1958
67 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
330 ft
3 main spans
Daily traffic
1,606
2020 count
Owner
County
County Highway Agency

About this bridge

Off Ramp over Water Ave Conn EB is a steel stringer/multi-beam or girder carrying Off Ramp over Water Ave Conn EB in Multnomah County, Oregon. It was built in 1958, so it is 67 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 1,606 vehicles a day, roughly 10% of them trucks, projected to reach 1,821 by 2025. The structure is 330 ft (100.6 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesOff Ramp
CrossesWater Ave Conn EB
LocationEast End Morrison Br
RouteCity Street 25614
CountyMultnomah County
StateOregon
Coordinates45.5167, -122.66713
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length330 ft (100.6 m)
Longest span139 ft (42.4 m)
Deck width31 ft (9.4 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,606 (2020)
Projected traffic1,821 by 2025
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Off Ramp over Water Ave Conn EB built?

It was built in 1958, making it 67 years old in 2025.

What condition is Off Ramp over Water Ave Conn 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 February 2025.

How much traffic does Off Ramp over Water Ave Conn EB carry?

About 1,606 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Off Ramp over Water Ave Conn EB?

The structure is 330 ft (100.6 m) long with a longest span of 139 ft (42.4 m) and a deck 31 ft wide.

Who owns Off Ramp over Water Ave Conn EB?

It is owned by the County Highway Agency.