US Bridges

US 101 over Lake Creek

Fair

Clallam County, Washington · 5.4 N JCT SR 110 · Structure no. 0003106A0000000

Built
1946
79 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
3,805
2023 count
Owner
State
State Highway Agency

About this bridge

US 101 over Lake Creek is a concrete continuous tee beam carrying US 101 over Lake Creek in Clallam County, Washington. It was built in 1946, so it is 79 years old, older 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 6 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 3,805 vehicles a day, roughly 10% of them trucks, projected to reach 5,031 by 2039. The structure is 132 ft (40.2 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesUS 101
CrossesLake Creek
Location5.4 N JCT SR 110
RouteU.S. Route 101
CountyClallam County
StateWashington
Coordinates48.04028, -124.38
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length132 ft (40.2 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,805 (2023)
Projected traffic5,031 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 101 over Lake Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is US 101 over Lake 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 March 2023.

How much traffic does US 101 over Lake Creek carry?

About 3,805 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 101 over Lake Creek?

The structure is 132 ft (40.2 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns US 101 over Lake Creek?

It is owned by the State Highway Agency.