Permit Review Detail
Review Status: Completed
Review Details: GRADING
Permit Number - T08BU00093
Review Name: GRADING
Review Status: Completed
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 02/06/2008 | JASON GREEN | ENGINEERING | REVIEW | Denied | DATE: February 15, 2008 SUBJECT: 3690 E Hemisphere Loop Grading Plan- Engineering Review TO: LEADS, Inc., Attn: Hank Hubert, P.E. LOCATION: T15S R14E Sec9 Ward 5 REVIEWERS: Jason Green, CFM ACTIVITY: T08BU00093 (Grading Plan) SUMMARY: Engineering Division of Development Services Department has received and reviewed the grading plan (T08BU00093), Drainage Statement (LEADS, Inc., 17JAN08), Geotechnical Engineering Report (Ricker-Atkinson-McBee-Morman and Associates, Inc, 10OCT06 with addendum 12OCT07 and 17OCT07) and Stormwater Pollution Prevention Plan (LEADS, Inc., 17JAN08) for the above referenced property. Engineering Division does not recommend approval of the grading plan at this time. The following items need to be addressed: GRADING PLAN COMMENTS: 1) Provide a copy of the last approved Development Plan (D07-0006). The grading plan can not be approved until verification that all details, locations, dimensions, and plan profiles match the approved Development Plan. Verify all information associated with the Development Plan is shown on the grading plan that will be used as the construction document. 2) Revise the Basis of Elevation sections on Sheet C-1 and C-2 to label the datum reference used (i.e. NGVD29 or NAVD88). Provide the City of Tucson Book and Page Number or attach the survey used for the property with datum reference called out. 3) DS Sec.3-05.2.2.D: Revise the grading plan to provide the dimensions for the proposed back-up spur located within the west vehicular use area. Specifically the back-up spur must be a minimum of 3 feet in depth with a 3-foot radii, but must also provide a minimum of 3 feet between the back of spur and any wall obstruction that is over 6 inches in height. 4) ANSI Standards A117.1-2003: Revise the grading plan to show that all proposed handicap access ramps meet the design requirements per ANSI Standards A117.1-2003 Section 406.13. Provide details or keynotes that label truncated domes at all transitions from pedestrian circulation to vehicular circulation. Specifically revise Construction Note #5 to refer to the ADA Note on Sheet C-5. 5) DS Sec.3-05.2.3.C: Revise the grading plan to verify the required unobstructed 2.5-foot overhang from the wheel stop to the pedestrian circulation at all handicap parking locations (Construction Keynote #7). The handicap signs can not be located within the required 2.5-foot overhang. 6) Revise Detail 6 on Sheet C-5 to correctly label and dimension the spillway/riprap detail. Provide riprap thickness and filter fabric recommendations for the splash pad. Provide the dimensions for the vertical curb as shown in plan view. 7) Revise Construction Keynote #14 and #15 to clarify the use of Standard Public Detail #305 for the design of the catch basins. 8) Revise the grading plan to label Construction Keynote #17 for the proposed curb stop barriers with the parking spaces located along the west property line. 9) Revise Construction Keynote #18 and Detail #11 on Sheet C-5 for the proposed HDPE pipe and headwall. Provide a detail showing the transition from the perforated pipe, the pipe size, verify existing channel and proposed channel slope, spot elevation for the outlet of the pipe, call out mitered end, etc. Per Detail #11 the grading plan needs to label the slope of the existing channel. Revise the plan view or the detail to provide for the existing and proposed channel slope. 10) Revise Detail #12 on Sheet C-5 to label the rock riprap size (D50), thickness, and filter fabric recommendations. The riprap detail must meet the requirements within the Drainage Report and must provide all dimensions and details for construction purposes. 11) Revise Sheet C-6 to provide all construction and details for the proposed StormTech underground retention system. The following information is needed, verify that all construction related information is attached to Sheet C-6 for the design of the under ground retention system: a) Per Sheet C-3, 15-inch pipes inlet into both ends of the under ground system. The details provided on Sheet C-6 do not reflect what is shown in plan view or what is being proposed in the Drainage Report. Revise to show a manhole location at both inlets into the under ground retention system. b) Revise the detail to provide all construction details and dimensions for the required manholes. The grading plan must accurately depict the design of the manholes for construction purposes (i.e. rim elevations, width, depth, thickness, bottom elevation, etc). Manholes must be designed to meet or exceed the requirements of the manufacture. c) Provide a plan view detail of the proposed underground retention system to show how the chambers are connected. Provide connection ports, pipe elevations, clarify the isolator row from the retention chambers, provide the location of inspection ports, etc. d) Revise Sheet C-6 to include the maintenance verbiage per the manufacture recommendations. Provide the recommendations and step by step procedures for the Isolator Row Inspections and Maintenance per Landsaver™. e) Provide on Sheet C-6 a reference to the Installation Instructions per Landsaver™; refer to the Landsaver™ Design Manual for further clarification. 12) Revise the grading plan to provide clarification of the perforated 15-inch pipe. Provide a detail that shows the transition of the perforated pipe to the 27LF HDPE pipe, slope, depth of cover, connectivity of perforated pipe to underground retention system, etc. 13) Revise Construction Note #26 to provide a detail for the modified catch basin. The detail must provide dimensions with spot elevations for both inlets and the one outlet for the proposed system. 14) Revise Construction Note #27 to show a minimum of one clean out at one of the elbow locations for maintenance purposes. It is recommended that both elbows have a clean out for maintenance. 15) Revise Sheet C-3 to clearly show a flow line for the stormwater runoff within the vehicular use area on the north side of the building. Clearly show that the landscape islands are not attached to the proposed curb and that stormwater flows along the curb line into the proposed basin inlet. 16) DS Sec.11-01.4.1.C.3: Revise the grading plan to provide spot elevation for all required clean out locations. Provide the pipe diameter and the invert and rim elevations of all clean outs in plan view for grading purposes. Specifically provide clean outs at all pipe junction locations (Construction Keynote #24) with elevations for grade verifications. 17) DS Sec.10-02.14.3.2: Revise the note on the grading plan to state that, (a) the owner or owners shall be solely responsible for operation, maintenance, and liability for all drainage structures and the StormTech underground retention system; (b) that the owner or owners shall have an Arizona Registered Professional Civil Engineer prepare a certified inspection report for the drainage and detention/retention facilities at lease once every 6-months, and that these regular inspection reports will be on file with the owner for review by City staff, upon written request; (c) that City staff may periodically inspect the drainage and retention/detention facilities to verify that scheduled and unscheduled maintenance activities are being performed adequately; and (d) that the owner or owners agree to reimburse the City for any and all costs associated with the maintaining of the drainage structures and StormTech underground retention system, should the City find the owner or owners deficient in their obligation to adequately operate and maintain their facilities." 18) DS Sec.11-01.4.1.C.4: Provide a General Note stating that all fencing and walls will require a separate permit for review and approval by all necessary Development Services Departments. 19) Provide a general note on the grading plan to state the following: "Call for a Pre-construction meeting prior to start of earthwork. To schedule a DSD Pre-construction meeting, SWPPP inspection or general Engineering Inspections, call IVR (740-6970), or schedule with a Customer Service Representative at the Development Services Department, or contact DSD Engineering at 791-5550 extension 2101, or schedule inspections online at: http://www.ci.tucson.az.us/dsd/Online_Services/Online_Permits/online_permits.html 20) Approval from TDOT Permits and Codes for all improvements within the public right-of-way will be required. A right-of-way use permit application will be required prior to construction. Contact Thad Harvison, (520)-837-6592 or Thad.Harvison@tucsonaz.gov for all right-of-way requirements and permit applications. 21) Please ensure that any future grading plan will be consistent with the Development Plan, Drainage Statement and Geotechnical Report. Grading standards may be accessed at: http://www.ci.tucson.az.us/dsd/DevStandsTOC.pdf STORMWATER POLLUTION PREVENTION PLAN: The SWPPP does not meet the minimum requirements of the AzPDES Construction General Permit (CGP). 22) Part IV.B.2.c: Explicitly indicate in the SWPPP the name of the operator with operational control over project specifications (including the ability to make modifications in specifications). 23) Part IV.C.2: Describe the nature of the construction activity: 24) Part IV.C.2.a: Describe the project and its intended use after NOT is filed. 25) Part IV.C.2.b: Describe the intended sequence of disturbance activities. 26) Part IV.C.2.c: Indicate the total area of site and estimate of total area expected to be disturbed (include off-site borrow and fill areas). 27) Part IV.C.2.d: Estimate the pre-construction and post-construction runoff coefficient and provide soil data and any existent data on the quality of the discharge. 28) Part IV.C.3.a: Identify on the map drainage patterns and estimated slopes after grading. 29) Part IV.C.3.b: Identify on the map areas of soil disturbance. Identify on the map areas not to be disturbed. 30) Part IV.C.3.e: Identify on the map locations of off-site material, waste, borrow areas, or equipment storage. 31) Part IV.C.4: Identify on the map or in a narrative, the nearest receiving water(s), including ephemeral and intermittent streams, dry sloughs, or arroyos. If applicable, identify the areal extent and describe any wetlands near the site that could be disturbed or potentially receive run-off from disturbed areas. 32) Part IV.C.6: Identify on the map and address offsite material storage areas or borrow areas used solely for the project. 33) Part IV.D.4.b: Describe when the operator will initiate stabilization procedures in the time frame provided in the permit, and what stabilization efforts will occur. 34) Part IV.D.5.a.i: If any structural controls are used in the floodplain, the SWPPP should document why effective controls could not alternatively be placed outside of the floodplain. 35) Part IV.F: Include a signed NOI and ADEQ authorization as part of the SWPPP. 36) Part IV.H.6: Describe how and where the inspection records will be maintained for at least three years; how the report will document noncompliance or certify full compliance; and indicate who will be authorized to sign the report. 37) Part IV.J.1: The Owner/Operator must sign the SWPPP. 38) Describe how and where a copy of the SWPPP will be retained on site. A copy is to be submitted to ADEQ with the NOI if the site is within 1/4 mile of unique or impaired water. 39) Part IV.J.2: Describe how and where the operator will post a sign at main entrance to site containing: AZPDES authorization number (or copy of NOI authorization), construction site contact name and telephone number, brief project description, location of SWPPP if the site is inactive or does not have an on-site storage location. GENERAL COMMENTS: Please provide 2 copies of the revised grading plan, 2 copies of the Drainage Statement, 2 copies of the Geotechnical Report and 3 copies of the revised SWPPP reports that addresses the comments provided above. Include a comprehensive response letter addressing in detail responses to all of the above comments. Enclose "redlines" with the resubmittal package. Further comments may be generated upon resubmittal of the grading plan and SWPPP review. If you have any questions, or to schedule an appointment, I can be reached at 837-4929. Jason Green, CFM Senior Engineer Associate Engineering Division COT Development Services |
| 02/08/2008 | JOE LINVILLE | NPPO | REVIEW | Denied | Submit an approved development plan. Revise the grading plan as necessary to conform to the provisions of the Dveleopment, landscape, and native plant preservation submittal and applicable codes. |
| 03/03/2008 | MICHAEL ST. PAUL | ZONING | REVIEW | Denied | March 3, 2008 Development Services Department Zoning Review Section Michael St.Paul Planning Technician T08BU00093 Grading Plans for D07-0006 3690 East Hemisphere Loop Comments: 1. The grading plan has been reviewed by Zoning Review Section but cannot approve the plan until it has been approved by the Engineering, and Landscape Review Sections and until all zoning comments or concerns have been addressed. 2. In addition, we could not verify that the grading plan was in compliance with the approved development plan for Zoning Review. Please submit two copies of the approved and stamped Development Plan, Landscape, and NPPO plans with the next grading plan submittal. 3. Zoning will re-review the grading plan on the next submittal to ensure compliance with the approved development plan. Additional comments may be forthcoming. |
Final Status
| Task End Date | Reviewer's Name | Type of Review | Description |
|---|---|---|---|
| 04/18/2008 | VFLORES1 | OUT TO CUSTOMER | Completed |
| 04/18/2008 | SHANAE POWELL | REJECT SHELF | Completed |