US Bridges

US 20 (hwy 007) over Willow Creek

Fair

Harney County, Oregon · 16.97 MI E JCT US 395 · Structure no. 17347 007 12159

Built
1993
32 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
2,792
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 007) over Willow Creek is a prestressed concrete slab carrying US 20 (hwy 007) over Willow Creek in Harney County, Oregon. It was built in 1993, so it is 32 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 2,792 vehicles a day, roughly 28% of them trucks, projected to reach 3,200 by 2042. The structure is 60 ft (18.3 m) long and 36 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 20 (hwy 007)
CrossesWillow Creek
Location16.97 MI E JCT US 395
RouteU.S. Route 395
CountyHarney County
StateOregon
Coordinates43.51227, -119.17678
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,792 (2022)
Projected traffic3,200 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 20 (hwy 007) over Willow Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 20 (hwy 007) over Willow 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 June 2024.

How much traffic does US 20 (hwy 007) over Willow Creek carry?

About 2,792 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 20 (hwy 007) over Willow Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 36 ft wide.

Who owns US 20 (hwy 007) over Willow Creek?

It is owned by the State Highway Agency.