Explore damage prevention information, local contacts and rules for safe digging in Hawaii.
One Call Centers
Address:305 N.E. 102nd Avenue
Portland OR 97220
Hours:24 hours / 7 days
Advance Notice:5 Working but no more than 28 Calendar days prior
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Marks Valid:28 Calendar days from the date of issuance
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.