US Bridges

Ramp to Hawthorne over Or 99E (01E)

FairPosted for load

Multnomah County, Oregon · Between SE Water & Grand · Structure no. 02757A000000000

Built
1957
68 years old, rebuilt 2000
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,240 ft
22 main spans
Daily traffic
12,852
2020 count
Owner
County
County Highway Agency

About this bridge

Ramp to Hawthorne over Or 99E (01E) is a steel continuous stringer/multi-beam or girder carrying Ramp to Hawthorne over Or 99E (01E) in Multnomah County, Oregon. It was built in 1957 and reconstructed in 2000, so it is 68 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 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 12,852 vehicles a day, roughly 10% of them trucks, projected to reach 19,363 by 2025. The structure is 1,240 ft (378 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRamp to Hawthorne
CrossesOr 99E (01E)
LocationBetween SE Water & Grand
RouteCity Street 9366
CountyMultnomah County
StateOregon
Coordinates45.51201, -122.66227
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.5 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans22
Design loadHS 20
Structure length1,240 ft (378 m)
Longest span76 ft (23.2 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic12,852 (2020)
Projected traffic19,363 by 2025
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.9 mi (3 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 Ramp to Hawthorne over Or 99E (01E) built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2000.

What condition is Ramp to Hawthorne over Or 99E (01E) 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 Ramp to Hawthorne over Or 99E (01E) carry?

About 12,852 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Ramp to Hawthorne over Or 99E (01E)?

The structure is 1,240 ft (378 m) long with a longest span of 76 ft (23.2 m) and a deck 49 ft wide.

Who owns Ramp to Hawthorne over Or 99E (01E)?

It is owned by the County Highway Agency.