US Bridges

Columbia River RD over Omak Creek

Good

Okanogan County, Washington · 0.77 MI S. Jct. SR155 · Structure no. 087574000000000

Built
2006
19 years old
Condition
Good
inspected October 2023
Type
Culvert
Steel
Length
49 ft
1 main span
Daily traffic
553
2019 count
Owner
County
County Highway Agency

About this bridge

Columbia River RD over Omak Creek is a steel culvert carrying Columbia River RD over Omak Creek in Okanogan County, Washington. It was built in 2006, so it is 19 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 553 vehicles a day, roughly 8% of them trucks, projected to reach 650 by 2041. The structure is 49 ft (14.9 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesColumbia River RD
CrossesOmak Creek
Location0.77 MI S. Jct. SR155
RouteCounty Highway 32800
Coordinates48.39389, -119.5005
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span49 ft (14.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic553 (2019)
Projected traffic650 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$791,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Columbia River RD over Omak Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Columbia River RD over Omak 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 October 2023.

How much traffic does Columbia River RD over Omak Creek carry?

About 553 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Columbia River RD over Omak Creek?

The structure is 49 ft (14.9 m) long with a longest span of 49 ft (14.9 m).

Who owns Columbia River RD over Omak Creek?

It is owned by the County Highway Agency.