US Bridges

HWY 144AW over HWY 144

Fair

Washington County, Oregon · 2.8 MI NW Tigard Cc · Structure no. 23872144AW00299

Built
1978
47 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
406 ft
5 main spans
Daily traffic
2,687
2020 count
Owner
State
State Highway Agency

About this bridge

HWY 144AW over HWY 144 is a concrete continuous box beam or girders - multiple carrying HWY 144AW over HWY 144 in Washington County, Oregon. It was built in 1978, so it is 47 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 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 2,687 vehicles a day, roughly 3% of them trucks, projected to reach 4,000 by 2030. The structure is 406 ft (123.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY 144AW
CrossesHWY 144
Location2.8 MI NW Tigard Cc
RouteState Highway 217
StateOregon
Coordinates45.46955, -122.7864
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length406 ft (123.9 m)
Longest span87 ft (26.5 m)
Deck width36 ft (11.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,687 (2020)
Projected traffic4,000 by 2030
Trucks3%
Lanes on structure5
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY 144AW over HWY 144 built?

It was built in 1978, making it 47 years old in 2025.

What condition is HWY 144AW 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 HWY 144AW over HWY 144 carry?

About 2,687 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is HWY 144AW over HWY 144?

The structure is 406 ft (123.9 m) long with a longest span of 87 ft (26.5 m) and a deck 36 ft wide.

Who owns HWY 144AW over HWY 144?

It is owned by the State Highway Agency.