US Bridges

Helevetia RD over HWY 47 US 26

Fair

Washington County, Oregon · 13.4 MI W of Portland Cc · Structure no. 09722 047C06111

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
315 ft
2 main spans
Daily traffic
16,721
2022 count
Owner
State
State Highway Agency

About this bridge

Helevetia RD over HWY 47 US 26 is a steel continuous stringer/multi-beam or girder carrying Helevetia RD over HWY 47 US 26 in Washington County, Oregon. It was built in 1985, so it is 40 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 16,721 vehicles a day, roughly 2% of them trucks, projected to reach 21,000 by 2030. The structure is 315 ft (96 m) long and 106 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesHelevetia RD
CrossesHWY 47 US 26
Location13.4 MI W of Portland Cc
RouteU.S. Route 26
CountyWashington County
StateOregon
Coordinates45.56397, -122.92619
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length315 ft (96 m)
Longest span170 ft (51.8 m)
Deck width106 ft (32.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,721 (2022)
Projected traffic21,000 by 2030
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 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 Helevetia RD over HWY 47 US 26 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Helevetia RD over HWY 47 US 26 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 October 2024.

How much traffic does Helevetia RD over HWY 47 US 26 carry?

About 16,721 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Helevetia RD over HWY 47 US 26?

The structure is 315 ft (96 m) long with a longest span of 170 ft (51.8 m) and a deck 106 ft wide.

Who owns Helevetia RD over HWY 47 US 26?

It is owned by the State Highway Agency.