US Bridges

Multnomah Blvd over HWY 001

Fair

Multnomah County, Oregon · 1.5 MI N of Barbur Blvd · Structure no. 08437 001 29655

Built
1959
66 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
404 ft
2 main spans
Daily traffic
99,796
2020 count
Owner
State
State Highway Agency

About this bridge

Multnomah Blvd over HWY 001 is a steel continuous stringer/multi-beam or girder carrying Multnomah Blvd over HWY 001 in Multnomah County, Oregon. It was built in 1959, so it is 66 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 99,796 vehicles a day, roughly 11% of them trucks, projected to reach 140,700 by 2040. The structure is 404 ft (123.1 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesMultnomah Blvd
CrossesHWY 001
Location1.5 MI N of Barbur Blvd
RouteCounty Highway 0
CountyMultnomah County
StateOregon
Coordinates45.46526, -122.69581
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length404 ft (123.1 m)
Longest span133 ft (40.5 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99,796 (2020)
Projected traffic140,700 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Multnomah Blvd over HWY 001 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Multnomah Blvd over HWY 001 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 January 2024.

How much traffic does Multnomah Blvd over HWY 001 carry?

About 99,796 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Multnomah Blvd over HWY 001?

The structure is 404 ft (123.1 m) long with a longest span of 133 ft (40.5 m) and a deck 35 ft wide.

Who owns Multnomah Blvd over HWY 001?

It is owned by the State Highway Agency.