US Bridges

Cabot Street over HWY 144

Fair

Washington County, Oregon · 0.3 MI N of HWY 29 · Structure no. 09609 144 00118

Built
1971
54 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
237 ft
1 main span
Daily traffic
1,987
2010 count
Owner
State
State Highway Agency

About this bridge

Cabot Street over HWY 144 is a prestressed concrete box beam or girders - multiple carrying Cabot Street over HWY 144 in Washington County, Oregon. It was built in 1971, so it is 54 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 1,987 vehicles a day, roughly 4% of them trucks, projected to reach 2,252 by 2030. The structure is 237 ft (72.2 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCabot Street
CrossesHWY 144
Location0.3 MI N of HWY 29
RouteCity Street 0
StateOregon
Coordinates45.49485, -122.79148
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating52.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span160 ft (48.8 m)
Deck width41 ft (12.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,987 (2010)
Projected traffic2,252 by 2030
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Cabot Street over HWY 144 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Cabot Street 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 Cabot Street over HWY 144 carry?

About 1,987 vehicles per day (2010 count), of which roughly 4% are trucks.

How long is Cabot Street over HWY 144?

The structure is 237 ft (72.2 m) long with a longest span of 160 ft (48.8 m) and a deck 41 ft wide.

Who owns Cabot Street over HWY 144?

It is owned by the State Highway Agency.