US Bridges

US 2 over Chiwaukum Creek

Good

Chelan County, Washington · 5.1 E JCT SR 207 · Structure no. 0018139A0000000

Built
2012
13 years old
Condition
Good
inspected August 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
5,386
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Chiwaukum Creek is a prestressed concrete stringer/multi-beam or girder carrying US 2 over Chiwaukum Creek in Chelan County, Washington. It was built in 2012, so it is 13 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 5,386 vehicles a day, roughly 10% of them trucks, projected to reach 7,012 by 2039. The structure is 100 ft (30.5 m) long and 42 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 2
CrossesChiwaukum Creek
Location5.1 E JCT SR 207
RouteU.S. Route 2
Coordinates47.68695, -120.73619
Functional classRural Principal Arterial - Other

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 inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating48.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span96 ft (29.3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,386 (2023)
Projected traffic7,012 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Chiwaukum Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is US 2 over Chiwaukum 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 2021.

How much traffic does US 2 over Chiwaukum Creek carry?

About 5,386 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 2 over Chiwaukum Creek?

The structure is 100 ft (30.5 m) long with a longest span of 96 ft (29.3 m) and a deck 42 ft wide.

Who owns US 2 over Chiwaukum Creek?

It is owned by the State Highway Agency.