Ordinance 2012-1625 - Laserfiche WebLink

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floodway area to convey flood flows which can reasonably be expected to occur by: a. Regulating filling, dumping, dredging and alteration of channels by deepening, widening, or relocating; b. Prohibiting unnecessary and damage-creating encroachments; and c. Encouraging open space uses such as agriculture and recreation; and 5. To protect the hydraulic characteristics of the small watercourses, including the gulches, sloughs and artificial water channels used for conveying floodwaters, which make up a portion of the urban drainage system by: a. Regulating filling, dumping and channelization so as to maintain natural storage capacity and slow flow characteristics; b. Prohibiting encroachment into the small watercourses to maintain their water- carrying capacity; and c. Encouraging uses such as greenbelt, open space, recreation and riding trails. Sec. 17.56.050.-Jurisdiction. This chapter shall apply to all areas within the flood regulatory district and to all areas of special flood hazard and all areas removed from the floodplain by the issuance of a FEMA Letter of Map Revision Based on Fill (LOMR-F) within the jurisdiction of the city. Sec. 17.56.060. - Flood regulatory district. The flood regulatory district is determined by computing the 100-year floodplain limits under existing channel and floodplain conditions. Sec. 17.56.070. - Establishment of official maps. The location and boundaries of areas within the flood regulatory district are identified by the Federal Emergency Management Agency in a scientific and engineering report entitled "The Flood Insurance Study for Boulder County, Colorado and Incorporated Areas," dated December 18, 2012, with an accompanying flood insurance rate map (FIRM), as adopted and amended from time to time, which is hereby adopted by reference and declared to be a part of this chapter. These Special Flood Hazard Areas identified by the FIS and attendant mapping are the minimum area of applicability of this ordinance and may be supplemented by studies designated and approved by city council. Copies of the official map are kept on file with the director of public works, the planning department and the city clerk. The boundary lines on the map shall be determined by the use of the scale appearing on the map. Where there is a conflict between the boundary lines illustrated on the map and actual field conditions, the dispute shall be settled according to section 17.56.190. Ordinance No.1625,Series 2012 Page 12 of 31 12