From Thursday, March 19 through Sunday, March 22. For public safety, certain hiking trails are restricted from 8 a.m. to 5 p.m.
Grading and Drainage
The City of Phoenix requires the review of grading and drainage plans for all construction projects both residential and non-residential. Grading and drainage plans are classified as civil plans and are reviewed under the civil plan review process. Additional information is listed below.
Residential Single Family/Single Lot Only
Single lot pertains to the development of one lot within a previously approved subdivision or an infill lot.
Single lot pertains to the development of one lot within a previously approved subdivision or an infill lot.
- Single Lot Grading and Drainage Guidelines
- Single Lot On-Retention Requirements
- Single Lot Grading and Drainage Checklist
- Single Lot Plot Plan (Grading Plan Checklist)
- Single Lot Plot Plan (Sample Plot Plan)
- Single Lot - Previously Developed
- Subdivision and Commercial Grading and Drainage Checklist
- Subdivision and Commercial Grading and Drainage Prelog
- Grading and Drainage Prelog Plot Plan
Commercial/Subdivision/Multifamily/Industrial
Subdivision pertains to the creation of three or more lots on more than 2 1/2 acres.
Grading and Drainage Plan Checklist
Grading and Drainage Prelog - Commercial, Multifamily and Subdivisions
Grading and Drainage Prelog - Plot Plan