US Bridges

Skokomish Valleyrd over Hunter Creek

Good

Mason County, Washington · 1.76 W JCT SR 101 · Structure no. 088829000000000

Built
2015
10 years old
Condition
Good
inspected May 2024
Type
Girder and Floorbeam System
Prestressed Concrete
Length
137 ft
2 main spans
Daily traffic
494
2023 count
Owner
County
County Highway Agency

About this bridge

Skokomish Valleyrd over Hunter Creek is a prestressed concrete girder and floorbeam system carrying Skokomish Valleyrd over Hunter Creek in Mason County, Washington. It was built in 2015, so it is 10 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 494 vehicles a day, roughly 7% of them trucks, projected to reach 1,400 by 2040. The structure is 137 ft (41.8 m) long and 31 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSkokomish Valleyrd
CrossesHunter Creek
Location1.76 W JCT SR 101
RouteCounty Highway 41640
Coordinates47.31271, -123.20281
Functional classRural Minor 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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length137 ft (41.8 m)
Longest span64 ft (19.6 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic494 (2023)
Projected traffic1,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Skokomish Valleyrd over Hunter Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Skokomish Valleyrd over Hunter 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 May 2024.

How much traffic does Skokomish Valleyrd over Hunter Creek carry?

About 494 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Skokomish Valleyrd over Hunter Creek?

The structure is 137 ft (41.8 m) long with a longest span of 64 ft (19.6 m) and a deck 31 ft wide.

Who owns Skokomish Valleyrd over Hunter Creek?

It is owned by the County Highway Agency.