The highway advisory radio (HAR) system deployed at Blewett/Stevens pass in Washington State included a portable HAR unit ($30,000), and two fixed HAR stations ($15,000 each). Washington State DOT has implemented three highway advisory radios (HAR) along the Blewett/Stevens Pass to provide weather and road condition information to travelers and maintenance crews. Oneā¦ Content type System Cost Made Public Date 09/30/2003 Taxonomy (ARC-IT) Broadcast Traveler Information (TI01) Geolocation links Washington, United States