US Bridges

US 2 over Mill Creek

Good

Chelan County, Washington · 5.6 E King CO · Structure no. 0017143A0000000

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
37 ft
1 main span
Daily traffic
2,631
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Mill Creek is a steel culvert carrying US 2 over Mill Creek in Chelan County, Washington. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,631 vehicles a day, roughly 5% of them trucks, projected to reach 3,043 by 2039. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 2
CrossesMill Creek
Location5.6 E King CO
RouteU.S. Route 2
Coordinates47.77419, -121.01306
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,631 (2023)
Projected traffic3,043 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$773,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Mill Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 2 over Mill 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 2023.

How much traffic does US 2 over Mill Creek carry?

About 2,631 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 2 over Mill Creek?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m).

Who owns US 2 over Mill Creek?

It is owned by the State Highway Agency.