US Bridges

Allen Blvd over HWY 144

Fair

Washington County, Oregon · 0.3 MI S of Cabot ST · Structure no. 16134 144C00248

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
820 ft
12 main spans
Daily traffic
21,548
2022 count
Owner
State
State Highway Agency

About this bridge

Allen Blvd over HWY 144 is a concrete continuous box beam or girders - multiple carrying Allen Blvd over HWY 144 in Washington County, Oregon. It was built in 1981, so it is 44 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 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 21,548 vehicles a day, roughly 3% of them trucks, projected to reach 26,117 by 2030. The structure is 820 ft (249.9 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAllen Blvd
CrossesHWY 144
Location0.3 MI S of Cabot ST
RouteState Highway 217
CountyWashington County
StateOregon
Coordinates45.47663, -122.78945
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length820 ft (249.9 m)
Longest span124 ft (37.9 m)
Deck width90 ft (27.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,548 (2022)
Projected traffic26,117 by 2030
Trucks3%
Lanes on structure4
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$6.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Allen Blvd over HWY 144 built?

It was built in 1981, making it 44 years old in 2025.

What condition is Allen Blvd over HWY 144 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 2024.

How much traffic does Allen Blvd over HWY 144 carry?

About 21,548 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Allen Blvd over HWY 144?

The structure is 820 ft (249.9 m) long with a longest span of 124 ft (37.9 m) and a deck 90 ft wide.

Who owns Allen Blvd over HWY 144?

It is owned by the State Highway Agency.