WAHIAWA, Hawaii (KHON2) -- Drivers in Wahiawa are advised to proceed with caution in the southbound direction of Kamehameha Highway due to a six-inch water main break. Get Hawaii's latest morning news delivered to your inbox, sign up for News 2 You Just before 7 p.m., the Board of Water Supply announced crews are working to repair the main break between Olive Street and Ohai Place. As of now, water usage for five businesses has been impacted. Those in the area are asked to drive with extreme caution while driving through the site and expect delays.