Permit Review Detail
Review Status: Completed
Review Details: RESUBMITTAL - CDRC - DEV PLAN
Permit Number - D06-0024
Review Name: RESUBMITTAL - CDRC - DEV PLAN
Review Status: Completed
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 09/04/2007 | FERNE RODRIGUEZ | START | PLANS SUBMITTED | Completed | |
| 09/13/2007 | JASON GREEN | ENGINEERING | REVIEW | Denied | DATE: September 13, 2007 SUBJECT: Hemisphere Corporate Center Development Plan- 4th Engineering Review TO: Patricia Gehlen, CDRC Manager LOCATION: 6300 S Palo Verde Road, T15S R14E Sec09 Ward 5 REVIEWERS: Jason Green, CFM ACTIVITY: D06-0024 SUMMARY: Engineering Division of Development Services Department has received the revised development plan (Sheets 1 through 14), the revised Drainage Report (Arroyo Engineering, LLC, 31AUG07) and the revised landscape plan. Engineering Division has reviewed the submitted development plan and does not recommend approval of the development plan at this time. The following items need to be addressed: DRAINAGE REPORT: 1) DS Sec.10-02.2.3.1.6.B.1-3: Revise the drainage report to meet the minimum standards for development within a Critical Basin. On Page 9, Section C, Onsite Runoff for existing and Developed Conditions, with Retention Table shows that the 2-, 10- and 100-year flow events are not reduced by the required 15%. Development within the Critical Basin Management Plan must provide a 15% reduction in the developed conditions for the 2-, 10-, and 100-year flow events relative to the existing conditions. Revise the calculation, design layout and tables to show that these requirements have been met. Per DS Sec.10-01.1.4 and 2.3 stormwater detention requirements may not be waived if the proposed development is located within a critical basin. 2) Per the August 6, 2007 meeting with Elizabeth Eberbach, PE and Matt Flick, PE of DSD Engineering a minimum 1% slope is required within the bottom of both retention/detention basins to assure positive drainage. The new basin south of the existing reinforced box culverts under Palo Verde Road must show positive drainage of 1%. The proposed Development Plan calls out only 0.5% longitudinal basin bottom slopes, revise. For this project the slope between the inverts within the channel from the box culverts at Palo Verde and the existing box culverts under the access will be accepted. 3) Clarify the low flow bleed pipes that are used to drain the detention/retention basins. All low flow bleed pipes must show how they will be maintained for the life of the project. Field observations have shown that 6-inch diameter bleed pipes will sediment in and provide a maintenance issue for keeping them clean. Revise the low flow bleed pipes to show a minimum diameter dimension of 12-inch with a 6-inch orifice plate on the upstream end for this project. 4) DS 10-1.3.5.2: Clarify in the drainage report the high water elevation for the proposed detention of storm water runoff within the vehicular use area. Provide a statement within the report that all ponding within the vehicular use area does not exceed the maximum 1-foot depth per DS 10-1.3.5.2. Revise the cross section J/2 to label the ponding limits within the vehicular use area. 5) Verify within the drainage report that the 10-year stormwater discharge is contained under all pedestrian circulation paths. Specifically the crosswalk location from Palo Verde Road to the proposed building. Per DS 10-01.3.5.2 proposed ponding in a vehicular use area should be designed such that pedestrians are not inconvenienced. DEVELOPMENT PLAN: 6) Chapter 29 Sec.29-15: The proposed improvements (parking lot area and trash enclosure) within the 50' W.A.S.H. overlay zone require SAC approval. When approved update General Note #33 to include the date of approval for the W.A.S.H. overlay. 7) DS Sec.1-01.4.7: It is understood that a DSMR has been submitted for this project due to the disturbance within the protected riparian area. The DSMR must be approved prior to Development Plan approval. All exhibits and discussion must reflect any changes made by the approved DSMR. Revise General Note # 32 to provide the DSMR number, the Development Standard being modified along with the date of DSMR approval. 8) DS 10-1.3.5.2: Clarify on the Development Plan the high water elevation for the proposed detention of storm water runoff within the vehicular use area. Verify on Detail J/2 the high water elevation within the vehicular use area. Label the high water elevation on the detail or in plan view to verify that the ponding limits do not exceed the maximum 1-foot depth per DS 10-1.3.5.2. 9) Revise Sheets 3 and 4 to provide the recordation information for the cross access agreement that is shown on both sheets. The cross access agreement must be recorded prior to Development plan approval. 10) DS Sec.2-05.2.4.H.3: Clarify the low flow bleed pipes that are used to drain all detention/retention basins. All low flow bleed pipes must show how they will be maintained for the life of the project. Field observations have shown that 6-inch bleed pipes will sediment in and provide a maintenance issue for keeping them clean. Revise the low flow bleed pipes on the development plan to show a minimum dimension of 12-inch with a 6-inch orifice plate on the upstream end. Provide revisions within the drainage report calculations. 11) DS Sec.2-05.2.4.H.3: Revise the Development Plan, Sheet 8, to call out the low flow bleed pipe from the proposed retention basin in the northeast corner into the proposed channel. The bleed pipe must have a minimum dimension of 12-inch with a 6-inch orifice plate on the upstream end. Provide revisions within the drainage report calculations. 12) DS Sec.2-05.2.4.H.2: Provide the cross section location for the proposed south retention/detention basin along the southern portion of the property at the east boundary located on Sheets 8 and 10. 13) Verify on the Development Plan and within the drainage report that the 10-year stormwater discharge is contained under all pedestrian circulation paths. Specifically the crosswalk location from Palo Verde Road to the proposed building. Per DS 10-01.3.5.2 proposed ponding in a vehicular use area should be designed such that pedestrians are not inconvenienced. 14) DS Sec.2-05.2.4.H.3: Revise Keynote #14 to call out all dimensions for any proposed riprap. This keynote is used at all riprap location and is called out as typical, however per the drainage report some areas require different rock size, thickness, method of placement and dimensions. Provide the size of riprap (hand placed, dumped, grouted, with filter fabric) for Keynote #14. It may be necessary to add an additional keynote for other riprap locations. 15) DS Sec.2-05.2.4.H.3: Revise Detail Q/9 on Sheet 9 of 14 to provide the dimensions for the required concrete cut-off wall at the outlet end of the proposed concrete box culverts. Provide the dimension for the length of the box culvert per the drainage report. The detail does not meet the design requirements called out in the proposed drainage report, revise the details or provide a new report that address the design shown. 16) DS Sec.2-05.2.4.H.3: Clarify the difference in design for the upstream and downstream end of the proposed concrete box culverts as shown in Detail Q/9 versus the hydraulic calculation sheets within the proposed drainage report. The proposed drainage report analyzed the culvert hydraulics using wing walls with a flare of 30-70 degrees to protect the culverts from erosion. The proposed Development Plan shows a different construction design than what is shown in the proposed drainage report, clarify. 17) Clarify the ramp location with percent slope for the proposed basin along the southeast corner of the parcel. The ramp can not be located so that a maintenance vehicle has to cross the proposed riprap spillways or be in conflict with parked vehicles. 18) Per the August 6, 2007 meeting with Elizabeth Eberbach, PE and Matt Flick, PE of DSD Engineering a minimum 1% slope is required within the bottom of both retention/detention basins to assure positive drainage. The new basin south of the existing reinforced box culverts under Palo Verde Road must show positive drainage of 1%. The proposed Development Plan calls out only 0.5% longitudinal basin bottom slopes, revise. For this project the slope between the inverts within the channel from the box culverts at Palo Verde and the existing box culverts under the access will be accepted. 19) DS Sec.2-05.2.4.G: Provide the required easement for the proposed water main shown on Sheets 12, 13 and 14. All easements must be dimensioned and labeled as to their purpose and whether the are public or private. Provide the recordation information for the public water easement. GENERAL COMMENTS: Provide the approved DSMR, a revised development plan, a revised drainage report, and an approved landscape plan that addresses the comments provided above. Include a comprehensive response letter addressing in detail responses to all of the above comments. Further comments may be generated upon resubmittal of the DSMR, development plan, drainage report, and landscape plan, reviews. In order to help expedite this project at the next review a meeting between the consultants and DSD Engineering may be scheduled to go over the items listed above to ensure that all comments are addressed prior to resubmitting the plans, call me at 837-4929 to schedule a meeting. Jason Green, CFM Senior Engineer Associate Engineering Division Development Services |
| 09/25/2007 | JOE LINVILLE | LANDSCAPE | REVIEW | Approved | |
| 09/25/2007 | STEVE SHIELDS | ZONING | REVIEW | Approv-Cond | CDRC TRANSMITTAL TO: Development Services Department Plans Coordination Office FROM: Steve Shields Lead Planner PROJECT: D06-0024 Hemisphere Corporate Center Development Plan TRANSMITTAL: September 25, 2007 DUE DATE: October 02, 2007 COMMENTS: 1. The Zoning Review Section conditionlly approves the development plan for this project, subject to the following changes on the sign-off copies. However, should there be any changes requested by other CDRC members, the Zoning Review Section approval is void, and we request copies of the revised development plan to verify that those changes do not affect any zoning requirements.. 2. Provide Exhibit C to the proposed Cross Use Access Easement Agreement as requested on the last review. Provide the recordation information on the development plan. 3. This development can not be approved until the Wash Overlay Zone review has been approved. If you have any questions about this transmittal, please contact me at Steve.Shields@tucsonaz.gov or (520) 837-4956. SHS C:\planning\cdrc\developmentplan\D06-0024dp-4th.doc |
| 10/04/2007 | PATRICIA GEHLEN | ZONING-DECISION LETTER | REVIEW | Denied | COMMUNITY DESIGN REVIEW COMMITTEE DEVELOPMENT SERVICES October 4, 2007 Tri Miller Rick Engineering Company 1745 East River Road, Suite 101 Tucson, Arizona 85701 Subject: D06-0024 Hemisphere Corporate Center Development Plan Dear Tri: Your submittal of September 4, 2007 for the above project has been reviewed by the Community Design Review Committee and the comments reflect the outstanding requirements which need to be addressed before approval is granted. Please review the comments carefully. Once you have addressed all of the comments, please submit the following revised documents and a DETAILED cover letter for each agency explaining how each outstanding requirement has been addressed: ALL BLUELINES MUST BE FOLDED 3 Copies Revised Development Plan (Traffic, Engineering, DSD) 2 Copies Revised Landscape Plans (Engineering, DSD) 2 Copies Revised Drainage Report (Engineering, DSD) Should you have any questions, please call me at 837-4919. Sincerely, Patricia Y. Gehlen CDRC Manager All comments for this case are available on our website at http://www.ci.tucson.az.us/dsd/ Via fax: 322-6956 |
| 10/04/2007 | JOSE ORTIZ | COT NON-DSD | TRAFFIC | Approv-Cond | Adjust the proposed striping so that it is located at the intersection of Palo Verde and Hemisphere Loop. |