US Bridges

Ocr 3735 over Omak Creek

Good

Okanogan County, Washington · 0.29 NE.JCT.SR155 · Structure no. 084842000000000

Built
1968
57 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
1,339
2020 count
Owner
County
County Highway Agency

About this bridge

Ocr 3735 over Omak Creek is a prestressed concrete stringer/multi-beam or girder carrying Ocr 3735 over Omak Creek in Okanogan County, Washington. It was built in 1968, so it is 57 years old, older 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 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 1,339 vehicles a day, roughly 5% of them trucks, projected to reach 2,000 by 2041. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOcr 3735
CrossesOmak Creek
Location0.29 NE.JCT.SR155
RouteCounty Highway 37350
Coordinates48.40369, -119.50261
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40 US tons
Inventory rating20.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span50 ft (15.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,339 (2020)
Projected traffic2,000 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$760,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ocr 3735 over Omak Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Ocr 3735 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 Ocr 3735 over Omak Creek carry?

About 1,339 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Ocr 3735 over Omak Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.1 m) and a deck 28 ft wide.

Who owns Ocr 3735 over Omak Creek?

It is owned by the County Highway Agency.