Specifications include, but are not limited to: The City is requesting professional design services for the Whitney Ranch Channel Replacement project. The Whitney Ranch Channel Replacement project is identified in the 2013 Clark County Regional Flood Control District Master Plan Update (MPU) as a segment of the Whitney Ranch-Duck Creek Channel System. Project construction will replace the existing Whitney Wash Channel (WWDC 0000, 0015, 0030, 0033, 0054, and 0055) with higher-capacity structures (WWDC 0001, 0016, 0031, 0034, 0053, 0056) construct proposed facility WWDC 0070 to safely convey the ultimate 100-year flowrate. The improved crossings at Whitney Ranch and Galleria Drives (WWDC 0031 & 0053) eliminate the backwater effect at the existing bridges as notated by mapped flood zones. Facility WWDC 0070 through the future park site is an RCB that will connect to the existing Whitney Mesa Estates RCB (WWDC 0084).