The banks of watercourses constitute an erosion hazard zone which is subject to channel widening and/or meandering. Setback distances are best determined by a detailed engineering study performed by a state-registered professional civil engineer. Guidelines for such studies and for determining setbacks are found in the Standards Manual for Drainage Design and Floodplain Management in Tucson, Arizona (Standards Manual).
Setbacks from unstabilized banks may be determined by use of methodology found in the Standards Manual.
Reduced setbacks may be considered at the discretion of the city engineer only upon submitting to the city a detailed engineering study performed by a state-registered professional civil engineer for review and approval.
(Ord. No. 7407, § 5, 6-25-90)