US Bridges

US 26 (hwy 047) CO over Barnes RD Conn

Fair

Washington County, Oregon · 5.1 MI W of Portland Cc · Structure no. 16637 047C06935

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Frame
Concrete
Length
42 ft
1 main span
Daily traffic
16,958
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) CO over Barnes RD Conn is a concrete frame carrying US 26 (hwy 047) CO over Barnes RD Conn 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 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 16,958 vehicles a day, roughly 4% of them trucks, projected to reach 16,500 by 2030. The structure is 42 ft (12.7 m) long and 150 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 047) CO
CrossesBarnes RD Conn
Location5.1 MI W of Portland Cc
RouteU.S. Route 26
CountyWashington County
StateOregon
Coordinates45.5102, -122.7779
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating75.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.7 m)
Longest span37 ft (11.2 m)
Deck width150 ft (45.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,958 (2022)
Projected traffic16,500 by 2030
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$188,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 26 (hwy 047) CO over Barnes RD Conn built?

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

What condition is US 26 (hwy 047) CO over Barnes RD Conn 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 US 26 (hwy 047) CO over Barnes RD Conn carry?

About 16,958 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US 26 (hwy 047) CO over Barnes RD Conn?

The structure is 42 ft (12.7 m) long with a longest span of 37 ft (11.2 m) and a deck 150 ft wide.

Who owns US 26 (hwy 047) CO over Barnes RD Conn?

It is owned by the State Highway Agency.