US Bridges

Kilchis Forest RD over Unnamed Creek

Good

Tillamook County, Oregon · MP 1.50 · Structure no. 24216 000 00150

Built
2021
4 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
30
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Kilchis Forest RD over Unnamed Creek is a prestressed concrete slab carrying Kilchis Forest RD over Unnamed Creek in Tillamook County, Oregon. It was built in 2021, so it is 4 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 1% of them trucks, projected to reach 36 by 2030. The structure is 45 ft (13.7 m) long and 16 ft wide.

CarriesKilchis Forest RD
CrossesUnnamed Creek
LocationMP 1.50
RouteState Lands Road 0
StateOregon
Coordinates45.52358, -123.79958
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2010)
Projected traffic36 by 2030
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Unnamed Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Kilchis Forest RD over Unnamed Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

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

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

How long is Kilchis Forest RD over Unnamed Creek?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 16 ft wide.

Who owns Kilchis Forest RD over Unnamed Creek?

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