Stormwater Master Plan

Print
Share & Bookmark, Press Enter to show all options, press Tab go to next option

Project Background

The City is updating its Stormwater Master Plan. The following are the DRAFT versions of the final report, appendix, and technical support data notebook:

2022 Stormwater Master Plan

Technical Support Data Notebook

Changes to Floodplain Maps

As part of this Master Plan effort, the City is updating locally regulated Flood Hazard Areas (i.e. floodplains) within the City limits.  The new maps not only include more accurate modeling but also take into account the extensive changes in the form of new development, improved/new stormwater facilities, and natural changes to the terrain as a result of erosion that we’ve seen since the last plan (2005) was completed. 

A Flood Hazard Area is the area that has been determined to be subject to a 1 percent or greater chance of flooding in any given year (aka 100-year flood) or the area that has been determined to be subject to a 0.2 percent chance of flooding in any given year (aka 500-year flood). These locally regulated Flood Hazard Areas are used to notify residents of potential flood hazards in their area and to help the City of Sedona with floodplain management. 

The City of Sedona reviews the Flood Hazard Areas when building improvements or development plans are submitted for permits. The engineering community uses the Flood Hazard Areas and supporting flood data (e.g. flood water elevations) to ensure that proposed building improvements will be safe from flooding and that the improvements will not result in adverse impacts to neighboring properties.

Find Your Property on the Map

Step One:

To find your property on the map and view the updated Flood Hazard Areas that may affect you, view the index map.

Step Two:

Then select the alpha numeric panel (i.e. F6) to further zoom in on the subject property you are looking for.

A2 B2  C1 D1 E1 F1 G1 H8 I6 J7
  B3 C2 D2 E2 F2 G8 H9 I7 J8
  B4 C3 D3 E3 F3 G10   I8 J9
  B7 C4 D4 E4 F4 G11   I9 J10
  B8 C5 D5 E5 F5     I10  
  B10 C6 D6 E6 F6        
  B11 C7 D7 E7 F9        
    C8 D8 E8 F10        
    C9 D9 E10 F11        
    C10 D10 E11          
    C11 D11 E12          
    C12 D12            

 

Step Three:

Compare with the previous floodplain maps by selecting the same alpha numeric panel.

A2 B2 C1 D1 E1 F1 G1 H8 I6 J7
  B3 C2 D2 E2 F2 G8 H9 I7 J8
  B4 C3 D3 E3 F3 G10   I8 J9
  B7 C4 D4 E4 F4 G11   I9 J10
  B8 C5 D5 E5 F5     I10  
  B10 C6 D6 E6 F6        
  B11 C7 D7 E7 F9        
    C8 D8 E8 F10        
    C9 D9 E10 F11        
    C10 D10 E11          
    C11 D11 E12          
    C12 D12            

 

Questions and Public Meeting

If you have questions related to the updated Flood Hazard Area maps:

  1. The City of Sedona will be hosting a Flood Hazard Area workshop from 3:00 PM to 6:00 PM June 29th at 221 Brewer Rd (south building), Sedona, AZ 86336.  Staff and engineering contractors will have computers available to review the flood hazard maps with you and answer questions.
  2. Please call the Flood Hazard hotline at (928) 852-4164 between 8:00 AM to 5:00 PM Monday through Friday.

Note: The Flood Hazard Areas are not FEMA regulated floodplains and will not result in the requirement to buy flood insurance. However, we encourage our residents to consult with their insurance providers to evaluate the benefits of obtaining flood insurance.

Resources

To assist with next steps and make informed decisions around the actions property owners and renters can take to lower their risk of flooding, ReduceFloodRisk.org can help.  This interactive website empowers people to protect themselves and their valuable assets.

To get started, people can go to ReduceFloodRisk.org, answer a series of five simple questions and receive a detailed list of mitigation options recommended to reduce flood risk for their specific property type.  The curated results can be filtered and sorted by key attributes, such as cost, complexity, and level of required maintenance. 

In addition to its decision-support engine, ReduceFloodRisk.org features a variety of resources to help property owners and renters better understand flood risk, flood insurance, and financial assistance options.  The site is completely free and users do not need to create an account to gain access to the resources.