US Bridges

US 101 over Mcdonald Creek

Good

Clallam County, Washington · 11.9 E JCT SR 117 · Structure no. 0018376B0000000

Built
2013
12 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
300 ft
3 main spans
Daily traffic
10,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 101 over Mcdonald Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 101 over Mcdonald Creek in Clallam County, Washington. It was built in 2013, so it is 12 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 10,300 vehicles a day, roughly 5% of them trucks, projected to reach 13,033 by 2039. The structure is 300 ft (91.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 101
CrossesMcdonald Creek
Location11.9 E JCT SR 117
RouteU.S. Route 101
Coordinates48.08928, -123.23728
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length300 ft (91.4 m)
Longest span95 ft (29 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,300 (2023)
Projected traffic13,033 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$5.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 101 over Mcdonald Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 101 over Mcdonald 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 November 2024.

How much traffic does US 101 over Mcdonald Creek carry?

About 10,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 101 over Mcdonald Creek?

The structure is 300 ft (91.4 m) long with a longest span of 95 ft (29 m) and a deck 41 ft wide.

Who owns US 101 over Mcdonald Creek?

It is owned by the State Highway Agency.