SR 522 runs from I-5 in King County to US 2 in Snohomish County. The SR 522 improvement plan includes six projects to improve safety and mobility along the corridor.SR 522 Projects1. Fales Road/Echo Lake Road Interchange2. I-5 to SR 405 Multimodal3. Paradise Lake Road Interchange4. Paradise Lake Road to Snohomish River Widening5. Snohomish River to US 2 Widening6. UW Bothell/Cascadia Community College Access