The county said Thursday construction of three outdoor warning sirens will start today and are scheduled for completion Friday, June 28, in Hilo.
The sirens will be situatted in Malama Park, Mohouli Park and Ainako Park.
During construction, residents and business owners can expect general construction noise and increased traffic during business hours.
Upon completion, the outdoor warning sirens will be approximately 45 feet in height, and when outdoors audible at an approximately 3,400-foot radius from the siren location.
Outdoor warning sirens are used to alert the public to emergencies. In an emergency, the siren will sound for three minutes, pause for one minute, sound for three minutes, pause for one minute, then sound for three minutes.
Upon hearing a siren, please listen to a local radio station.
In addition, the sirens are tested monthly. This usually occurs at 11:45 a.m. on the first business day of each month. During this test, all warning sirens sound a one-minute steady tone.
For more information, please contact Hawaii County Civil Defense Agency at 935-0031.