US Bridges

Harrington Road over E Fk Dairy Creek

Fair

Washington County, Oregon · 008 MI E Roy Road · Structure no. 671299073600198

Built
1985
40 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
809
2020 count
Owner
County
County Highway Agency

About this bridge

Harrington Road over E Fk Dairy Creek is a prestressed concrete slab carrying Harrington Road over E Fk Dairy Creek 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 809 vehicles a day, roughly 10% of them trucks, projected to reach 889 by 2025. The structure is 69 ft (21 m) long and 28 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesHarrington Road
CrossesE Fk Dairy Creek
Location008 MI E Roy Road
RouteCounty Highway C1989
CountyWashington County
StateOregon
Coordinates45.59276, -123.06378
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic809 (2020)
Projected traffic889 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrington Road over E Fk Dairy Creek built?

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

What condition is Harrington Road over E Fk Dairy Creek 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 August 2024.

How much traffic does Harrington Road over E Fk Dairy Creek carry?

About 809 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Harrington Road over E Fk Dairy Creek?

The structure is 69 ft (21 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Harrington Road over E Fk Dairy Creek?

It is owned by the County Highway Agency.