The following factors shall be used to determine the classifications of various lands and their constraints to building and development of certain lands:
A. Floodplain Corridor Lands: Lands with potential stream flow and flood hazards. The following lands are classified as Floodplain Corridor lands:
1. All land contained within the one hundred (100)-year floodplain as defined by the Federal Emergency Management Agency.
2. All land within the area defined as Floodplain Corridor land in maps adopted by the City as provided for in Section 10-34-5.
3. All lands which have physical or historical evidence of flooding in the historical past.
4. All areas within thirty feet (horizontal distance) of any river, creek, or stream as required by the State of Utah, Division of Water Quality.
B. Riparian Preservation Areas: The lands shown on the official maps as Riparian Areas are identified as seventy five feet (75') from the stream centerline for streams draining a basin of greater than one (1) square mile, and twenty five feet (25') from streams that drain areas of one square mile or less. It also includes any areas identified as wetlands or riparian in a Federal 404 Permit Process.
C. Erosive And Slope Failure Lands: Lands with potential erosion hazards, erosive lands, slope failure potential, and debris flow hazards are lands that are subject to damage from erosion and slope failure or defined as erosion and slope failure lands on the Critical Lands map and have a slope of fifteen percent (15%) or greater. Areas above and below canals on slopes greater that ten percent (10%) are also considered to have high erosive and slope failure potential.
D. Wildfire Lands: Lands with potential of wildfire, as defined on the Critical Lands map.
E. Severe Constraint Lands: Lands with severe development limitations which generally limit normal development. The following lands are classified as Severe Constraint Lands:
1. All areas which are within the floodway channels.
2. All lands with a slope greater than twenty percent (20%).
3. All lands within drainage ways with a watershed large enough to produce flooding conditions with potential to create property damage or threat to life.
F. Agricultural Land: Land as mapped by the State of Utah as Agricultural land of National or State Importance and as mapped and shown on the Critical Lands maps.
G. Essential Views: View corridors, view foregrounds, and view backdrops that are a value to the citizens of Wellsville and as define on the Essential Views map.
H. Classifications Cumulative: The above classifications are cumulative in their effect and, if a parcel of land falls under two (2) or more classifications, it shall be subject to the regulations of each classification. Those restrictions applied shall pertain only to those portions of the land being developed and not necessarily to the whole parcel. (Ord. 2019-04, 10-16-2019; amd. Ord. 2021-04, 5-19-2021)