US Bridges

Rock Creek Road over Squaw Creek

Fair

Klickitat County, Washington · 5.4 S JCT CR 34000 · Structure no. 083981000000000

Built
1982
43 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
16
2021 count
Owner
County
County Highway Agency

About this bridge

Rock Creek Road over Squaw Creek is a prestressed concrete stringer/multi-beam or girder carrying Rock Creek Road over Squaw Creek in Klickitat County, Washington. It was built in 1982, so it is 43 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 16 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2043. The structure is 61 ft (18.6 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesRock Creek Road
CrossesSquaw Creek
Location5.4 S JCT CR 34000
RouteCounty Highway 37430
CountyKlickitat County
StateWashington
Coordinates45.7965, -120.46433
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span56 ft (17.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2021)
Projected traffic20 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Creek Road over Squaw Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Rock Creek Road over Squaw 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 July 2023.

How much traffic does Rock Creek Road over Squaw Creek carry?

About 16 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Rock Creek Road over Squaw Creek?

The structure is 61 ft (18.6 m) long with a longest span of 56 ft (17.1 m) and a deck 31 ft wide.

Who owns Rock Creek Road over Squaw Creek?

It is owned by the County Highway Agency.