US Bridges

Satsopcloquallumrd over Comfort Creek

Good

Mason County, Washington · 6.32 W of Cloquallum RD · Structure no. 087177000000000

Built
2000
25 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
132
2020 count
Owner
County
County Highway Agency

About this bridge

Satsopcloquallumrd over Comfort Creek is a steel culvert carrying Satsopcloquallumrd over Comfort Creek in Mason County, Washington. It was built in 2000, so it is 25 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 132 vehicles a day, roughly 5% of them trucks, projected to reach 680 by 2040. The structure is 22 ft (6.6 m) long and 30 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesSatsopcloquallumrd
CrossesComfort Creek
Location6.32 W of Cloquallum RD
RouteCounty Highway 2000
CountyMason County
StateWashington
Coordinates47.10103, -123.42754
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length22 ft (6.6 m)
Longest span22 ft (6.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2020)
Projected traffic680 by 2040
Trucks5%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$311,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Satsopcloquallumrd over Comfort Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Satsopcloquallumrd over Comfort 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 April 2024.

How much traffic does Satsopcloquallumrd over Comfort Creek carry?

About 132 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Satsopcloquallumrd over Comfort Creek?

The structure is 22 ft (6.6 m) long with a longest span of 22 ft (6.6 m) and a deck 30 ft wide.

Who owns Satsopcloquallumrd over Comfort Creek?

It is owned by the County Highway Agency.