Drums shall be spaced approximately one hundred twenty feet apart; provided that on tapers and curves of one thousand-foot radius or less, drums shall be set at sixty-foot intervals.
Haw. Code R. § 19-129-21
Drums shall be spaced approximately one hundred twenty feet apart; provided that on tapers and curves of one thousand-foot radius or less, drums shall be set at sixty-foot intervals.
Haw. Code R. § 19-129-21