The older Williamson Valley Road-area subdivisions of Ho Kay Gan Village and Tonkawa were mostly platted and developed during the 1960s and 1970s and were never subject to formal drainage planning in the past.
The Yavapai County Flood Control District (the District) and the Federal Emergency Management Agency (FEMA) are processing a new Letter of Map Revision (LOMR) of a flood hazard area within Yavapai County.
The Yavapai County Flood Control District has completed the draft copy of the Diamond Valley Area Drainage Master Study.
The Yarnell Area Drainage Master Plan was developed to document design alternatives to mitigate flood problems in Yarnell, AZ.
Village of Oak Creek Area Wide Drainage Analysis Phase I and Phase II
The Yavapai County Flood Control District in conjunction with The Nature Conservancy have developed conceptual alternatives to provide multi-facet improvements in the Paulden, Arizona area.