US Bridges

Willow Lake RD over Willow CR

Fair

Jackson County, Oregon · 0.75 Milepost · Structure no. 29C242965 00075

Built
1962
63 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
448
2020 count
Owner
County
County Highway Agency

About this bridge

Willow Lake RD over Willow CR is a prestressed concrete slab carrying Willow Lake RD over Willow CR in Jackson County, Oregon. It was built in 1962, so it is 63 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 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 448 vehicles a day, roughly 10% of them trucks, projected to reach 523 by 2025. The structure is 29 ft (8.8 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesWillow Lake RD
CrossesWillow CR
Location0.75 Milepost
RouteCounty Highway C0965
CountyJackson County
StateOregon
Coordinates42.4836, -122.451
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 rating71.8 US tons
Inventory rating55.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic448 (2020)
Projected traffic523 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Willow Lake RD over Willow CR built?

It was built in 1962, making it 63 years old in 2025.

What condition is Willow Lake RD over Willow CR 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 2023.

How much traffic does Willow Lake RD over Willow CR carry?

About 448 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Willow Lake RD over Willow CR?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.

Who owns Willow Lake RD over Willow CR?

It is owned by the County Highway Agency.