US Bridges

Kilchis Forest RD over Clear Creek

Fair

Tillamook County, Oregon · 4.7 MI E of Bay City · Structure no. 21000 000 00000

Built
1976
49 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
30
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Kilchis Forest RD over Clear Creek is a prestressed concrete slab carrying Kilchis Forest RD over Clear Creek in Tillamook County, Oregon. It was built in 1976, so it is 49 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 30 vehicles a day, roughly 1% of them trucks, projected to reach 36 by 2030. The structure is 40 ft (12.2 m) long and 20 ft wide.

CarriesKilchis Forest RD
CrossesClear Creek
Location4.7 MI E of Bay City
RouteState Lands Road 0
StateOregon
Coordinates45.5243, -123.79274
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadOther
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2010)
Projected traffic36 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Kilchis Forest RD over Clear Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Kilchis Forest RD over Clear 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 July 2024.

How much traffic does Kilchis Forest RD over Clear Creek carry?

About 30 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Kilchis Forest RD over Clear Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 20 ft wide.

Who owns Kilchis Forest RD over Clear Creek?

It is owned by the State Park, Forest, or Reservation Agency.