US Bridges

IRR BIA RTE 26 over Cook Creek

Good

Grays Harbor County, Washington · 25.7 KM NE Copalis X-Ing · Structure no. 00000000000P009

Built
2002
23 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
124 ft
1 main span
Daily traffic
605
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 26 over Cook Creek is a prestressed concrete tee beam carrying IRR BIA RTE 26 over Cook Creek in Grays Harbor County, Washington. It was built in 2002, so it is 23 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 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 605 vehicles a day, roughly 25% of them trucks, projected to reach 707 by 2040. The structure is 124 ft (37.9 m) long and 45 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesIRR BIA RTE 26
CrossesCook Creek
Location25.7 KM NE Copalis X-Ing
RouteFederal Lands Road 26
Coordinates47.35775, -123.99073
Functional classRural Major 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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length124 ft (37.9 m)
Longest span119 ft (36.4 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic605 (2021)
Projected traffic707 by 2040
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA RTE 26 over Cook Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is IRR BIA RTE 26 over Cook 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 August 2024.

How much traffic does IRR BIA RTE 26 over Cook Creek carry?

About 605 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is IRR BIA RTE 26 over Cook Creek?

The structure is 124 ft (37.9 m) long with a longest span of 119 ft (36.4 m) and a deck 45 ft wide.

Who owns IRR BIA RTE 26 over Cook Creek?

It is owned by the Bureau of Indian Affairs.