US Bridges

NE 21st Ave over B-26 over UPRR

Fair

Multnomah County, Oregon · 4 Blocks S of Halsey ST · Structure no. 07035B000000000

Built
1912
113 years old, rebuilt 1986
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
157 ft
5 main spans
Daily traffic
13,624
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 21st Ave over B-26 over UPRR is a concrete continuous stringer/multi-beam or girder carrying NE 21st Ave over B-26 over UPRR in Multnomah County, Oregon. It was built in 1912 and reconstructed in 1986, so it is 113 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 5 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 13,624 vehicles a day, roughly 1% of them trucks, projected to reach 15,026 by 2025. The structure is 157 ft (47.9 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNE 21st Ave
CrossesB-26 over UPRR
Location4 Blocks S of Halsey ST
RouteCity Street 9811
StateOregon
Coordinates45.53033, -122.64488
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span43 ft (13.1 m)
Deck width61 ft (18.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,624 (2020)
Projected traffic15,026 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NE 21st Ave over B-26 over UPRR built?

It was built in 1912, making it 113 years old in 2025. It was reconstructed in 1986.

What condition is NE 21st Ave over B-26 over UPRR 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 June 2023.

How much traffic does NE 21st Ave over B-26 over UPRR carry?

About 13,624 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is NE 21st Ave over B-26 over UPRR?

The structure is 157 ft (47.9 m) long with a longest span of 43 ft (13.1 m) and a deck 61 ft wide.

Who owns NE 21st Ave over B-26 over UPRR?

It is owned by the City or Municipal Highway Agency.