Traffic volume
Silverlake is not an incorporated town, but relies primarily on Castle Rock and the town of Toutle for schools and services. Cowlitz County provides most services including police, fire, ambulance, water, sewer, and garbage. Gas service is provided by Cascade Natural Gas while CenturyLink and Frontier Communications provide telephone service. The area is composed of a mixture of uses that range from single-family and multi-family residential, commercial, retail, and agricultural uses. Traffic volume along Silver Lake remains consistent with approximately 1,000 cars passing it per day.