US Bridges

Williams Lake Road over Mill Creek

Good

Stevens County, Washington · 2.3 N JCT US 395 · Structure no. 086214000000000

Built
1996
29 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
2,228
2024 count
Owner
County
County Highway Agency

About this bridge

Williams Lake Road over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying Williams Lake Road over Mill Creek in Stevens County, Washington. It was built in 1996, so it is 29 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 2,228 vehicles a day, roughly 15% of them trucks, projected to reach 2,500 by 2037. The structure is 57 ft (17.4 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesWilliams Lake Road
CrossesMill Creek
Location2.3 N JCT US 395
RouteCounty Highway 94050
Coordinates48.59895, -117.9313
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.4 m)
Longest span56 ft (17.1 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,228 (2024)
Projected traffic2,500 by 2037
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$2.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Williams Lake Road over Mill Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Williams Lake Road 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 September 2024.

How much traffic does Williams Lake Road over Mill Creek carry?

About 2,228 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Williams Lake Road over Mill Creek?

The structure is 57 ft (17.4 m) long with a longest span of 56 ft (17.1 m) and a deck 35 ft wide.

Who owns Williams Lake Road over Mill Creek?

It is owned by the County Highway Agency.