US Bridges

Hawthorne Bridge over Water Ave to the River

FairPosted for load

Multnomah County, Oregon · Willamette Riv MP 13.2 · Structure no. 02757F

Built
1992
33 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
549 ft
12 main spans
Daily traffic
27,012
2020 count
Owner
County
County Highway Agency

About this bridge

Hawthorne Bridge over Water Ave to the River is a prestressed concrete continuous stringer/multi-beam or girder carrying Hawthorne Bridge over Water Ave to the River in Multnomah County, Oregon. It was built in 1992, so it is 33 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. Its operating status is: posted for other load-capacity restriction.

It carries about 27,012 vehicles a day, roughly 10% of them trucks, projected to reach 27,587 by 2025. The structure is 549 ft (167.3 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHawthorne Bridge
CrossesWater Ave to the River
LocationWillamette Riv MP 13.2
RouteCity Street 9366
StateOregon
Coordinates45.5124, -122.6669
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourUnknown foundation; not evaluated for scour
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 25 or greater
Structure length549 ft (167.3 m)
Longest span90 ft (27.4 m)
Deck width64 ft (19.5 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic27,012 (2020)
Projected traffic27,587 by 2025
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Hawthorne Bridge over Water Ave to the River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Hawthorne Bridge over Water Ave to the River 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 February 2023.

How much traffic does Hawthorne Bridge over Water Ave to the River carry?

About 27,012 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Hawthorne Bridge over Water Ave to the River?

The structure is 549 ft (167.3 m) long with a longest span of 90 ft (27.4 m) and a deck 64 ft wide.

Who owns Hawthorne Bridge over Water Ave to the River?

It is owned by the County Highway Agency.