US Bridges

Slab Creek RD over Creek

Fair

Tillamook County, Oregon · 4.18 Miles Off US 101 · Structure no. 22340 000 00418

Built
2014
11 years old
Condition
Fair
inspected June 2023
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
81
2020 count
Owner
County
County Highway Agency

About this bridge

Slab Creek RD over Creek is a steel culvert carrying Slab Creek RD over Creek in Tillamook County, Oregon. It was built in 2014, so it is 11 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 81 vehicles a day, projected to reach 96 by 2025. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSlab Creek RD
CrossesCreek
Location4.18 Miles Off US 101
RouteCounty Highway 0
CountyTillamook County
StateOregon
Coordinates45.06139, -123.90261
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81 (2020)
Projected traffic96 by 2025
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 Slab Creek RD over Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Slab Creek RD over 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 2023.

How much traffic does Slab Creek RD over Creek carry?

About 81 vehicles per day (2020 count).

How long is Slab Creek RD over Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns Slab Creek RD over Creek?

It is owned by the County Highway Agency.