WSDOT lists an open RV dumping station at the SeaTac safety rest area on I-5 (northbound), MP 140, 7.2 miles north of Tacoma. WSDOT describes its safety rest areas as places for the traveling public to stop.
Directions open an external map. They do not confirm that roads or entrances suit your RV.
Know before you arrive.
- Who can use it
- Public accessWSDOT describes its safety rest areas as places for the traveling public to stop. It does not publish a dump fee.
- Dump-station fee
- Fee not confirmedNot published by the operator. An unknown fee does not mean free.
- Service hours
- Dump-station hours are not published in the checked source.
- Season & restrictions
- No separate dump-station season is published in the checked source.
- Location
- I-5 milepost 140 · Northbound onlyOn the northbound side of I-5, milepost 140.Map point marks the facility, not necessarily the dump-station entrance.
- Drinking-water fill
- Not confirmed in the checked source.
- Rinse water
- Not confirmed in the checked source.
Where the information comes from.
Official information checked October 1, 2026. This is a source check, not an on-site inspection or a live-status guarantee. Operator: Washington State Department of Transportation.
View evidence from Washington State Department of Transportation and 1 other source
Safety Rest Area Strategic Plan | WSDOT
“Safety rest areas support highway safety by providing a place for the traveling public, commuters, and freight haulers to stop and rest on their travels.”