US Bridges

Sunitsch Canyon RD over Chumstick Creek

GoodPosted for load

Chelan County, Washington · 0.1 MI from Chumstick HWY · Structure no. 088034000000000

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
180
2021 count
Owner
County
County Highway Agency

About this bridge

Sunitsch Canyon RD over Chumstick Creek is a prestressed concrete slab carrying Sunitsch Canyon RD over Chumstick Creek in Chelan County, Washington. It was built in 2009, so it is 16 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. Its operating status is: posted for load restriction.

It carries about 180 vehicles a day, roughly 1% of them trucks, projected to reach 225 by 2041. The structure is 38 ft (11.6 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSunitsch Canyon RD
CrossesChumstick Creek
Location0.1 MI from Chumstick HWY
RouteCounty Highway 40060
Coordinates47.67228, -120.6417
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2021)
Projected traffic225 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sunitsch Canyon RD over Chumstick Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Sunitsch Canyon RD over Chumstick 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 September 2023.

How much traffic does Sunitsch Canyon RD over Chumstick Creek carry?

About 180 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Sunitsch Canyon RD over Chumstick Creek?

The structure is 38 ft (11.6 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns Sunitsch Canyon RD over Chumstick Creek?

It is owned by the County Highway Agency.