1.  Except as otherwise provided in subsection 2, any county may buy, sell or exchange property in the manner set forth in subsection 3 without complying with the provisions of NRS 244.281 when deemed necessary or proper to establish, align, realign, change, vacate or otherwise adjust a street, alley, avenue or other thoroughfare, or portion thereof, or a flood control facility within its limits.

2.  If the county acquired the property by dedication, the property may not be sold and ownership must revert to the abutting property owners in the proportion that the property was dedicated by them or their predecessors in interest. In the case of realignment, the property may be exchanged for other real property.

3.  When a petition signed by all property holders owning or controlling property abutting on a proposed or existing street, avenue, alley or other thoroughfare, or a flood control facility, which may be affected by an establishment, alignment, realignment, change, vacation or other adjustment is presented to any board of county commissioners, praying to have the proposed or existing street, alley, avenue or other thoroughfare, or the flood control facility, established, aligned, realigned, changed, vacated or otherwise adjusted, or upon the resolution of the board of county commissioners, the board of county commissioners may make the establishment, alignment, realignment, change, vacation or other adjustment as it may deem proper, by purchase, sale, proceedings in eminent domain or exchange of county property, including portions of streets, alleys, avenues or other thoroughfares, or flood control facilities, in order to carry out any necessary establishment, alignment, realignment, change, vacation or other adjustment whenever the board of county commissioners considers it to be in the best interests of the county.

4.  As used in this section, ‘flood control facility’ means any natural or artificial water facility for the collection, channeling, impoundment and disposal of rainfall, other surface and subsurface drainage waters, and storm and floodwaters, including, without limitation, ditches, ponds, dams, spillways, retarding basins, detention basins, lakes, reservoirs, canals, channels, levees, revetments, dikes, walls, embankments, bridges, inlets, outlets, connections, laterals, other collection lines, intercepting sewers, outfalls, outfall sewers, trunk sewers, force mains, submains, water lines, sluices, flumes, syphons, sewer lines, pipes, conduits, culverts, other transmission lines, pumping stations, gauging stations, ventilating facilities, stream gauges, rain gauges, engines, valves, pumps, meters, junction boxes, manholes, other inlet and outlet structures, apparatus, fixtures, structures and buildings, flood-warning service and appurtenant telephone, telegraph, radio and television apparatus, and other water diversion facilities.