(1) The following artificial obstructions are prohibited
within the designated floodway except as allowed by permit under ARM 36.15.602
through 36.15.604 and ARM 36.15.606:
(a) a building for living purposes or place of assembly or permanent use by human
(b) a structure or excavation that will cause water to be diverted from the
established floodway, cause erosion, obstruct the natural flow of water, or
reduce the carrying capacity of the floodway;
(c) the construction or permanent storage of any object subject to floatation or
movement during flood level periods.
(2) The following artificial obstructions are also prohibited within the designated
(a) mobile homes and manufactured homes;
(b) commercial buildings;
(c) solid and hazardous waste disposal and individual or multiple family sewage disposal
(d) storage of toxic, flammable, hazardous, or explosive materials.