US Bridges

Columbia Blvd over B-79 X N. Columbia Way

Fair

Multnomah County, Oregon · N Col Blvd over N Col Way · Structure no. 09752 000 00215

Built
1968
57 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
227 ft
3 main spans
Daily traffic
19,379
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbia Blvd over B-79 X N. Columbia Way is a concrete continuous box beam or girders - multiple carrying Columbia Blvd over B-79 X N. Columbia Way in Multnomah County, Oregon. It was built in 1968, so it is 57 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 19,379 vehicles a day, roughly 25% of them trucks, projected to reach 20,129 by 2025. The structure is 227 ft (69.2 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesColumbia Blvd
CrossesB-79 X N. Columbia Way
LocationN Col Blvd over N Col Way
RouteCounty Highway 9956
CountyMultnomah County
StateOregon
Coordinates45.5947, -122.72693
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length227 ft (69.2 m)
Longest span112 ft (34.1 m)
Deck width75 ft (23 m)
Roadway width64 ft (19.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,379 (2020)
Projected traffic20,129 by 2025
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Columbia Blvd over B-79 X N. Columbia Way built?

It was built in 1968, making it 57 years old in 2025.

What condition is Columbia Blvd over B-79 X N. Columbia Way 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 Columbia Blvd over B-79 X N. Columbia Way carry?

About 19,379 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is Columbia Blvd over B-79 X N. Columbia Way?

The structure is 227 ft (69.2 m) long with a longest span of 112 ft (34.1 m) and a deck 75 ft wide.

Who owns Columbia Blvd over B-79 X N. Columbia Way?

It is owned by the City or Municipal Highway Agency.