US Bridges

NE 21st Ave over B-26A X I-84 & Max

Good

Multnomah County, Oregon · 4 Blocks S of Halsey ST · Structure no. 07035C000000000

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
212 ft
3 main spans
Daily traffic
13,363
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 21st Ave over B-26A X I-84 & Max is a prestressed concrete slab carrying NE 21st Ave over B-26A X I-84 & Max in Multnomah County, Oregon. It was built in 1986, so it is 39 years old, younger 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 13,363 vehicles a day, roughly 1% of them trucks, projected to reach 14,738 by 2025. The structure is 212 ft (64.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNE 21st Ave
CrossesB-26A X I-84 & Max
Location4 Blocks S of Halsey ST
RouteCity Street 9811
CountyMultnomah County
StateOregon
Coordinates45.53011, -122.64486
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3 (+1 approach)
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span64 ft (19.5 m)
Deck width61 ft (18.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,363 (2020)
Projected traffic14,738 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was NE 21st Ave over B-26A X I-84 & Max built?

It was built in 1986, making it 39 years old in 2025.

What condition is NE 21st Ave over B-26A X I-84 & Max 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 NE 21st Ave over B-26A X I-84 & Max carry?

About 13,363 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is NE 21st Ave over B-26A X I-84 & Max?

The structure is 212 ft (64.6 m) long with a longest span of 64 ft (19.5 m) and a deck 61 ft wide.

Who owns NE 21st Ave over B-26A X I-84 & Max?

It is owned by the City or Municipal Highway Agency.