Ala Wai Dredging Plan By Catherine Cruz & The Conversation Staff • Jan 31, 2018 ShareTweetEmail Credit Wikimedia Commons Honolulu’s Ala Wai is ranked as one of the most polluted waterways in the country. The State of Hawaii has a plan to clean it up that just received a green light. Listen Listening... / 11:07 Jayen Thirugnanam, Hawaii DLNR Tags: News BitesThe ConversationAla Wai CanaldredgingShareTweetEmailView the discussion thread.