Projects
Project Name: Rawhide Wash Flood Hazard Mitigation Project
76
Project Manager: Tim Murphy
Contact by phone at (602) 506-4605 or by email
Project is in Supervisor District:
- District 1: False
- District 2: True
- District 3: False
- District 4: False
- District 5: False
You can find your Supervisor District by clicking here.
Project Type: Construction
Project Description:
The Rawhide Wash Flood Mitigation Project was constructed to reduce the flood risk and potential damage to properties and remove more than 850 homes and buildings from the floodplain. The project uses a system of channel improvements and flood walls to contain the 100-year flood along Rawhide Wash in Scottsdale. The project limits are from Pinnacle Peak Road to a half mile north of Happy Valley Road. The project was designed and constructed to meet the Federal Emergency Management Agency’s (FEMA) requirements.
The project team has developed and submitted the necessary documentation required by FEMA for review and concurrence that the completed project meets the requirements to contain the 100-year flood between the flood walls. Once FEMA has completed their review, they will remap the floodplain limits and issue a Letter of Map Revision (LOMR) making the new floodplain boundaries official.
Flood Insurance Questions?
Although construction has been completed, homeowners must keep their flood insurance in place until FEMA issues a Letter of Map Revision (LOMR) revising the floodplain boundaries.
FEMA will notify the project partners, including the Cities of Scottsdale and Phoenix, when the new floodplain boundaries are effective. The Cities will notify homeowners of the changes, and when homeowners can contact their lender or mortgage company to inquire about what updates will be allowed to their flood insurance coverage.
Last Updated: 7/20/2026 1:11:34 PM
Project Updates
Construction Status
Posted On: 7/20/2026 1:10:37 PM
Construction complete February 2025.
Construction Status:
Posted On: 4/28/2023 9:57:54 AM
The Rawhide Flood Mitigation project is in full swing between Pinnacle Peak Road and the future Miller Road realignment. Rock-filled gabions, designed to protect the existing wash, are being installed, and residential walls are being enhanced to withstand a 100-year flood. Native plant salvage continues every day, with hundreds of saguaros, trees and smaller cacti saved to replant after construction is complete.
In the coming months, work crews will continue north past Miller Road towards Happy Valley Road where this project terminates.
Construction Status:
Posted On: 1/27/2023 1:18:24 PM
The Rawhide Wash Flood Hazard Mitigation Project has begun in north Scottsdale, with crews salvaging plants and cacti. During this operation salvage crews will be moving approximately 43 trees and larger cacti and an additional 76 smaller cacti into the plant nursery, which is located off Happy Valley Road east of Scottsdale Road.
Once this phase of the project is complete, the contractor will begin clearing operations at the west corner of Pinnacle Peak Road and along the east wall of the wash from Los Portones to Miller Road. That will be followed by storm drain installation, sanitary sewer encasements, and new wall construction at Pinnacle Peak Road. Flood wall modifications will also begin along the east wall from Los Portones to Miller Road.
Construction Status:
Posted On: 10/11/2022 9:07:00 AM
Notice to Proceed for the Phase one of the Project is anticipated by October 17th to start the construction downstream of Miller Road alignment.
Design Status:
Posted On: 3/28/2022 2:47:41 PM
The Project is approved by the City of Scottsdale's Development Review Board (DRB).
Design Status
Posted On: 3/1/2022 7:53:54 AM
The project has been placed on the March 17, 2022 Scottsdale Design Review Board agenda.
Development Review Board (DRB) Submittal Status:
Posted On: 7/27/2021 7:24:01 AM
July 2021: the design team submitted the project to Scottsdale's Development Review Board (DRB) for their review and approval.
FEMA CLOMR Submittal Status:
Posted On: 7/27/2021 7:23:32 AM
June 2021: the design team submitted a Conditional Letter of Map Revision (CLOMR) to FEMA for their review and approval.
Public Meetings
Meeting Title: Project Update
Meeting Description:
Project Update to the Los Portones HOA Management Meeting
Meeting Location: Living Water Lutheran Church
Address:
9201 E Happy Valley Road
City:
Scottsdale
Zip:
85255
Meeting Date:
2021-09-13
Meeting Time:
06:00 PM
Meeting Title: Virtual Public Meeting
Meeting Description:
Design for the project is almost complete. This public meeting will give updates on design and construction process as well as address next steps for the County, cities and public.
Meeting Location: Online
Address:
City:
Zip:
Meeting Date:
2021-01-18
Meeting Time:
Does this meeting have a pre-recorded video? 1
Project Documents
| Document Name | Description | Document Type | Filesize | Posted On | |
|---|---|---|---|---|---|
| Main Presentation | Main presentation slides for January's virtual public meeting. | 3 | 3/19/2021 1:33:54 PM | View |