Oregon Oregon Health Authority, Public Health Division

Rule Rule 333-039-0020


The site selected for the outdoor mass gathering shall have good natural drainage. Areas which are swampy, or areas known to be susceptible to flash flooding are not acceptable.


Roads at the outdoor mass gathering site shall be provided with culverts, tiles, and ditching wherever needed to protect such roads from erosion due to precipitation.

Last accessed
Jun. 8, 2021