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Permit Number: T06BU02936
Parcel: 140280310

Review Status: Completed

Review Details: GRADING

Permit Number - T06BU02936
Review Name: GRADING
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
01/04/2007 JASON GREEN ENGINEERING REVIEW Denied DATE: January 5, 2007
SUBJECT: 2111 E Valencia Road- Engineering Review Site Plan and Grading Plan
TO: Baker and Associates Engineering, Inc.
LOCATION: T15S R14E Sec08, Ward 5
REVIEWERS: Jason Green, CFM
ACTIVITY: T06CM06322 (Site Plan) and T06BU02936 (Grading Plan)


SUMMARY: Engineering Division of Development Services Department has received and reviewed the site plan (T06CM06322), grading plan (T06BU02936), drainage report (prepared by Baker and Associates Engineering, Inc., dated 12-14-06), and Geotechnical Evaluation (prepared by Western Technology, dated 11-08-06) for the above referenced property. Engineering Division does not recommend approval of the site plan or grading plan at this time. The following items need to be addressed:


SITE PLAN COMMENTS:

1) DS Sec.2-02.2.1.A.8: Provide dimensions for all 2-way PAALs shown on the site plan. Verify that all PAALs have a minimum 24-foot wide access.

2) DS Sec.2-02.2.1.A.8: Revise the site plan to show the minimum unobstructed radius of 5-feet that is required at all PAAL intersection and 18-feet where the PAALs are being used as access for fire lanes. Refer to DS Sec.3-05.2.1.3.b for PAAL requirements.

3) DS Sec.2-02.2.1.A.8: Revise the site plan to dimension, or provide a detail, for all planting areas that are within the vehicular use area. Refer to DS Sec.2-06.3.3.C and Figure 3 under DS Sec.3-05 for square footage and minimum width/radii requirements.

4) DS Sec.2-02.2.1.A.10: Provide existing and future sight visibility triangles (SVTs), labeled and dimensioned, in plan view for both Valencia Road and Wieding Road. Verify that line of sight will not be obscured between 30-inches and 6-feet through the SVT areas adjacent to the driveways or PAALs.

5) DS Sec.2-02.2.1.A.12: Revise the site plan to show the required 6-foot wide sidewalk with curb along the street frontage of Valencia Road. Revise dimensions on site plan to show the 6-foot width. Per the adopted Mayor and Counsel policy all sidewalks along MS&R right-of-ways for arterial and collector streets require 6-foot wide sidewalks.

6) DS Sec2-02.2.1.A.12: Revise the site plan to show the required 5-foot wide sidewalk along the street frontage of Wieding Road. All new development shall provide 5-foot wide sidewalks along the entire length of street frontage.

7) DS Sec.2-02.2.1.A.12: Revise the site plan to show the required pedestrian circulation path that is required from proposed Building #3 to the pedestrian circulation path located along Wieding Road.

8) DS Sec.2-02.2.1.A.12: Clarify on the site plan that all handicap ramps at crosswalks or at the transition of a pedestrian circulation area to a vehicular use area has the required detectable warning devices (truncated domes) per ANSI Standards A117.1-2003 Section 406.13.

9) DS Sec.2-02.2.1.A.14: Label and show on the site plan the maneuvering area for all loading zones required on the site plan. Refer to AASHTO for the national standards for turning radii.

10) DS Sec.2-02.2.1.A.19: Revise the site plan to label the future right-of-way width for Valencia Road, a MS&R street, or provide the recordation information for the shown 5-foot additional right-of-way width.

11) DS Sec.2-02.2.1.A.20: Verify that all easements for the existing utilities (water, gas, electric) and public/private sewer lines are shown on the site plan. The easements must be shown graphically on the plan together with recording docket and page reference.

12) DS Sec.2-02.2.1.A.32: Provide a detail with dimensions for refuse container on the site plan, the enclosure must have a minimum inside clear dimension of 10 feet by 10 feet between steel bollards that are required between the container and the enclosure's rear and sidewall. Refer to DS Sec.6-01.4.2 for specifications and requirements on access, placement of containers, bin enclosure and construction.

13) DS Sec.2-02.2.1.A.32: Label and show the maneuverability for refuse vehicles in plan view at the proposed refuse container location.

14) DS Sec.2-02.2.1.C: Revise the landscape plan to match the revised site plan. Verify that the SVTs on the landscape plan match the site plan.


GRADING PLAN COMMENTS: Be advised that the grading plan can not be approved prior to site plan approval. All comments associated with the site plan must be corrected and the site plan must be approved prior to grading plan approval.

15) DS Sec.11-01: Provide general grading notes, including a grading/drainage note specifying conformance with City of Tucson Development Standard 11-01.0 (excavation and grading requirements).

16) DS Sec.11-01.4.1.C.3: Provide the percent slope in the bottom of the detention/retention basin that is to be achieved by grading.

17) DS Sec.11-01.9: Revise the grading plan and site plan to provide the required 2-feet setback from all property boundaries to the proposed limits of grading, detention/retention basin fill slopes, and associated erosion protection. The grading plan and site plan show that the tops of fill slopes for the proposed retention/detention basin encroaches within the required 2-feet setback. Provide sufficient room for the basin to allow for the 2-feet setback from property lines to top of fill slopes and wall footings.

18) DS Sec.11-01.4.1.C: Revise grading detail #5 to show the minimum 2-foot setback from the property line.

19) DS Sec.11-01.4.1.C: Revise grading detail #8 to label and dimension the required future 6-foot sidewalk with curb along Valencia Road.

20) DS Sec.11-01.4.1.C.3: Provide spot elevations at both refuse locations to verify that storm water runoff does not pond within the refuse container area.

21) DS Sec.11-01.4.1.C.4: Provide a General Note stating that all retaining walls will require a separate permit for review and approval by all necessary Development Services Departments.

22) Further comments may be generated upon resubmittal of the site plan.


DRAINAGE REPORT:

23) DS Sec.10-02.2.3.1.3.B.3: Clarify, or provide a discussion, on the hydrologic data sheet for Developed DA #1 and the 0% imperviousness factor used for the D soils. The portion of the property, as shown on the site plan that has D soils is a PAAL, vehicular use area, pedestrian circulation, and a portion of Building #1. Revise data sheet and discharge value if necessary and verify that the new discharge is used for all calculations. Revise Exhibits as appropriate.

24) DS Sec.10-02.2.3.1.3.B.3: Clarify, or provide a discussion, on the hydrologic data sheet for Developed DA #2 & Offsites for PAAL Hydraulics and the 0.006 Basin Factor ('n') used. Table 4.2 in DS Sec.10-02.4.2 shows that a 'n' factor of 0.055 should be used for rural areas with dispersed flows. Revise the data sheet and discharge value and verify that the new discharge is used for all calculations. Revise Exhibits as appropriate.

25) DS Sec.10-02.2.3.1.4.D: Revise the hydraulic PAAL work sheet and the Mannings Coefficient of 0.016 to read 0.020 and recalculate. Per DS Sec.10-02.8.5.1.3, Table 8.1 the maximum Manning's Coefficient value of 0.020 is required when cars are present.

26) DS Sec.10-02.12.5: Revise the weir capacity computation sheet for the proposed basin inlet and outlet to allow for a safety factor for possible debris blockage and for headwater height at the inlet. Equation 12.1 or 12.2 for flow through wall openings should be used to calculate the opening dimensions for the basin inlet design. A safety factor must be used within the design.

27) DS Sec.11-01.9: Revise detail #5 on Figure 2 to label and show the required 2-feet setback from the north property boundary to the proposed limits of grading, detention/retention basin fill slopes, and associated erosion protection. The grading plan and site plan show that the tops of fill slopes for the proposed detention/retention basin encroaches within the required 2-feet setback. Provide sufficient room for the basin to allow for the 2-feet setback from property line to top of fill slopes and wall footings.

28) DS Sec.10-02.2.3.1.3.B.3: Revise Figure 1 and the hydrologic data sheets to provide a number designation for the separate drainage areas and the existing Q100 discharge values. Provide the same number designation for the offsite flows that are shown on Figure 2.


STORMWATER POLLUTION PREVENTION PLAN:

29) Arizona Pollutant Discharge Elimination System (AZPDES) requirements are applicable to this project. Stormwater Pollution Prevention Plans (SWPPP) and text addressing stormwater controls for all areas affected by construction activities related to this development will be required at resubmittal of the grading plan. For further information, visit www.adeq.state.az.us/environ/water/permits/stormwater.html.


GENERAL COMMENTS:

Please provide a revised site plan, a revised grading plan, revised drainage report, and a SWPPP that address 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 site plan, grading plan, drainage report and SWPPP. Please enclose "redlines" with the resubmittal package for reference.

If you have any questions, or to schedule an appointment, I can be reached at 791-5550, extension 1189.



Jason Green, CFM
Senior Engineer Associate
Engineering Division
Development Services
01/08/2007 ANDREW CONNOR NPPO REVIEW Denied Site plan approval is necessary to continue review.
01/09/2007 HEATHER THRALL ZONING REVIEW Denied Once the site plan for this project is approved by DSD staff, and the grading plan is approved by engineering, zoning can continue the review of the grading plan.

Please resubmit grading plan per Engineering requirements.

Final Status

Task End Date Reviewer's Name Type of Review Description
01/12/2007 CINDY AGUILAR OUT TO CUSTOMER Completed