US Bridges

NE 33rd Ave over B-174XCOL Slough

Fair

Multnomah County, Oregon · NE 33rd Ave. · Structure no. 20134 000 00038

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
137 ft
1 main span
Daily traffic
6,998
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 33rd Ave over B-174XCOL Slough is a prestressed concrete tee beam carrying NE 33rd Ave over B-174XCOL Slough in Multnomah County, Oregon. It was built in 2006, so it is 19 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 6,998 vehicles a day, roughly 25% of them trucks, projected to reach 7,718 by 2025. The structure is 137 ft (41.9 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNE 33rd Ave
CrossesB-174XCOL Slough
LocationNE 33rd Ave.
RouteCity Street 9823
CountyMultnomah County
StateOregon
Coordinates45.57809, -122.63338
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length137 ft (41.9 m)
Longest span135 ft (41.1 m)
Deck width66 ft (20.1 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,998 (2020)
Projected traffic7,718 by 2025
Trucks25%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NE 33rd Ave over B-174XCOL Slough built?

It was built in 2006, making it 19 years old in 2025.

What condition is NE 33rd Ave over B-174XCOL Slough 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 July 2024.

How much traffic does NE 33rd Ave over B-174XCOL Slough carry?

About 6,998 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is NE 33rd Ave over B-174XCOL Slough?

The structure is 137 ft (41.9 m) long with a longest span of 135 ft (41.1 m) and a deck 66 ft wide.

Who owns NE 33rd Ave over B-174XCOL Slough?

It is owned by the City or Municipal Highway Agency.