Section 12-631r - Storm sewers; construction of improvements outside boundaries of municipality(a) Whenever the governing body of any city determines it is necessary to construct storm sewers, channels, retention basins or drains for the purpose of managing the storm drainage areas of all or any portion of such city and in the unincorporated areas outside of but within three miles of the corporate limits of such city, the governing body may authorize the construction of such storm sewers, channels, retention basins or drains. Such construction shall be authorized by ordinance. Such ordinance shall designate where such storm sewers, channels, retention basins or drains shall be located. Construction of such improvements located outside the corporate limits of a city shall not commence unless such construction is approved by a resolution adopted by the board of county commissioners of the county in which such improvements are to be located.(b) Whenever the governing body of any city determines it is necessary to construct storm sewers, retention basins, channels or drains for the purpose of managing the storm drainage areas of all or any portion of which are located within another city, the governing body may authorize construction of such storm sewers, retention basins, channels or drains. Such construction shall be authorized by ordinance. Such ordinance shall designate where such storm sewers, retention basins, channels or drains shall be located. Construction of improvements located within the corporate limits of another city shall not commence unless such construction is approved by a resolution adopted by the governing body of the city in which such improvements are to be located.(c) Whenever the board of county commissioners of any county determines it is necessary to construct storm sewers, retention basins, channels or drains for the purpose of managing the storm drainage areas of all or any portion of such county, the board may authorize construction of such storm sewers, retention basins, channels or drains. Such construction shall be authorized by resolution. Such resolution shall designate where such storm sewers, retention basins, channels or drains shall be located. Construction of improvements located within the corporate limits of a city shall not commence unless such construction is approved by a resolution adopted by the governing body of the city in which such improvements are to be located.L. 1911, ch. 103, § 1; L. 1915, ch. 146, § 1; L. 1917, ch. 106, § 1; R.S. 1923, § 14-522; L. 1975, ch. 91, § 2; L. 1999, ch. 13, § 1; July 1.