US Bridges

US 101 over Dungeness River

Good

Clallam County, Washington · 16.0 E JCT SR 117 · Structure no. 0013468A0000000

Built
1989
36 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
405 ft
3 main spans
Daily traffic
13,924
2023 count
Owner
State
State Highway Agency

About this bridge

US 101 over Dungeness River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 101 over Dungeness River in Clallam County, Washington. It was built in 1989, so it is 36 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 13,924 vehicles a day, roughly 5% of them trucks, projected to reach 17,619 by 2039. The structure is 405 ft (123.4 m) long and 79 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 101
CrossesDungeness River
Location16.0 E JCT SR 117
RouteU.S. Route 101
Coordinates48.07625, -123.15172
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length405 ft (123.4 m)
Longest span133 ft (40.6 m)
Deck width79 ft (24.1 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,924 (2023)
Projected traffic17,619 by 2039
Trucks5%
Lanes on structure4
Traffic directionOne-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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$14.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 101 over Dungeness River built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 101 over Dungeness River 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 2024.

How much traffic does US 101 over Dungeness River carry?

About 13,924 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 101 over Dungeness River?

The structure is 405 ft (123.4 m) long with a longest span of 133 ft (40.6 m) and a deck 79 ft wide.

Who owns US 101 over Dungeness River?

It is owned by the State Highway Agency.