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Project Name: Adobe Dam/Desert Hills/Apache Wash Area Drainage Master Plan


Project Manager: Lynndsay O'Neill
Contact by phone at (602) 506-8127 or by email

Project is in Supervisor District:

  • District 1: False
  • District 2: True
  • District 3: True
  • District 4: False
  • District 5: False

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Project Type: Study

Project Description:

The Flood Control District of Maricopa County (FCD), in partnership with the City of Phoenix, City of Glendale and Town of Cave Creek, is conducting an Area Drainage Master Study & Plan (ADMS/P) in the Adobe Dam, Desert Hills and Apache Wash Watersheds. This study will update the 2004 Adobe Dam/Desert Hills ADMP while also including the Apache Wash Watershed to the east.

In the last ten years, homes and infrastructure have been damaged from flooding. A study of this area was originally completed in 2004. Development has made significant changes to the watershed. This update will have fifteen more years of data and flooding events to assist modeling. Newer and more accurate technology is available to identify existing flooding hazards and risks in the area.

Last Updated: 10/4/2022 8:45:31 AM

Project Updates

Current Work Assignment
Posted On: 10/4/2022 8:45:31 AM

Staff is currently building detailed modeling and identifying flood hazards.

Work Assignment Complete
Posted On: 10/4/2022 8:45:11 AM

September 2021: Work Assignment #1 - Data Collection and Base Modeling - Complete.

Public Meetings

Meeting Title: Virtual Public Presentation & Public Comment Period

Meeting Description:

Virtual public meeting for the Adobe Dam/ Desert Hills/Apache Wash Area Drainage Master Plan.

Meeting Location: Online

Meeting Title: Virtual Public Presentation & Public Comment PeriodMeeting Description:Virtual public



Meeting Date:

Meeting Time:
06:00 PM

Meeting Is Webinar: 0

Meeting Link:

Meeting Link:

Meeting ID:

Special Instructions to Connect:

Does this meeting have a pre-recorded video? 1

Video Link:

Video Survey:
The survey will be available until 5/25/2022 12:00:00 AM

Project Documents

Document Name Description Document Type Filesize Posted On  
Adobe Dam/Desert Hills/Apache Wash Project Public Meeting Poster Adobe Dam/Desert Hills/Apache Wash Project Public Meeting Poster PDF 2.1 5/2/2022 4:24:31 PM View
Adobe Dam/Desert Hills/Apache Wash Powerpoint Presentation PowerPoint presentation for the 5/4/2022 public meeting PDF 3 5/26/2022 2:30:40 PM View