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Permit Number: TD-DEV-0525-00143
Parcel: 13811073C

Review Status: Requires Resubmit

Review Details: DEVELOPMENT PACKAGE NEW REVISION v.2

Permit Number - TD-DEV-0525-00143
Review Name: DEVELOPMENT PACKAGE NEW REVISION v.2
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
03/12/2026 Site Zoning Standard APPROVED
03/11/2026 Site Engineering Standard REQUIRES RESUBMIT Permit Activity Number: TD-DEV-0525-00143 (REV 1 Review)
Project: development consists of hybrid self-storage facility
Location: 6444 S FONTANA AV
Review Date: 3/11/2026
Reviewer: Marco Contreras – Engineering Associate - Site Engineering
Related Cases:
*This plan has been reviewed for compliance with applicable development criteria in the City of Tucson Unified Development Code (UDC) Administrative Manual (AM) Section 2-6 and Technical Standards Manual (TSM) Section for waste management, Pedestrian Access, Hydrology -Retention/Detention Requirements, and all site standard code. *
City of Tucson Code: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Codes
Floodplain Code: https://codelibrary.amlegal.com/codes/tucson/latest/tucson_az/0-0-0-19333
Drainage Manual Link: https://www.tucsonaz.gov/files/sharedassets/public/v/1/pdsd/documents/engineering-code/cot-drainage-manual-searchable.pdf
Design standards for Stormwater Detention and Retention Link:
https://www.tucsonaz.gov/files/sharedassets/public/v/1/pdsd/documents/engineering-code/updated-retention-detention-manual.pdf
Site Engineering Review Comments:
1. The proposed revised pavement section does not meet the minimum design standards established under the Pima County Regional Flood Control District Design Standards for Stormwater Detention and Retention (DSSDR), Section 5.9.5 – General Standards for Pervious Pavements and is therefore not approvable as submitted.
a. Filter Layer Deficiency – DSSDR §5.9.5.6 The proposed 4-inch filter layer does not comply with DSSDR §5.9.5.6, which requires a minimum 6-inch-thick filter layer conforming to the material graduation requirements of Table 5.1. The proposed reduction of 2 inches constitutes a 33% deficiency from the established minimum and cannot be approved without a formal alternative design request submitted to and approved by the Floodplain Administrator per DSSDR §1.4.
b. Open-Graded Aggregate Base Deficiency – DSSDR §5.9.5 The proposed reduction of the open-graded aggregate base from 4 inches to 2 inches is insufficient for a vehicle use area and is not supported by the standard cross-sections provided under DSSDR §5.9.2 through §5.9.4. As this installation is subject to vehicular loading, a geotechnical report prepared by a geotechnical engineer must be submitted demonstrating that the proposed section provides equivalent structural capacity.
2. The R-3 (3-6) Riprap proposed for the Swale will be allowed as it stands as the more conservative approach as the swale calculations show a flow of 1.71 fps, please revise plan set accordingly to demonstrate this approval by removing the or factor.
If you have any questions or concerns, please contact Marco Contreras at Marco.contreras@tucsonaz.gov
03/05/2026 CDRC Application Completeness Express REVIEW COMPLETED
03/10/2026 CDRC Review Coordinator Express REVIEW COMPLETED External Reviewers not required. No further action is required from the customer at this time.
03/05/2026 OK to Submit - Engineering Fast REVIEW COMPLETED
03/10/2026 OK to Submit - Zoning Fast REVIEW COMPLETED