Permit Review Detail
Review Status: Stopped
Review Details: FLOODPLAIN
Permit Number - T05OT01514
Review Name: FLOODPLAIN
Review Status: Stopped
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 07/07/2005 | DOUG WILLIAMS | ENGINEERING | REVIEW | Denied | SUBJECT: Site/Floodplain Permit/Drainage Report review DATE: 6-7 July 2005 ACTIVITY #'s: T05CM02759/T05OT01514 T15S, R13E, Section 1 Engineering Division has reviewed the Subject items. Approvals are not recommended at this time. An engineering study review fee of $150.00 will be required upon resubmittal, in accordance with Tucson Code, Section 26-11.2 i. Please provide a revised site plan and Drainage Report addressing all of the following comments: DRAINAGE REPORT: 1. Please provide the name, address, and telephone number of the client for whom the report was prepared (Development Standard - DS -10-02.0, Section 2.3.1.1 C). 2. Provide the Seal and Signature of the Arizona Registered Professional Civil Engineer responsible for preparation of the report (DS 10-02.0 Sec. 2.3.1.1 F). 3. Specify the name, address and telephone # of the person(s), firm(s), agency or agencies responsible for the ownership, operation, scheduled and unscheduled maintenance, and liability of the drainage improvements described in the report. List any other documents where these responsibilities may be documented (DS 10-02.0, Sec. 2.3.1.2 E). 4. Please include on the Developed Hydrology Figure 5 the location and size of a vehicular maintenance access ramp, and an outlet weir detail (DS 10-02.0 Sec. 2.3.1.6 A 4). 5. Provide a detailed detention basin maintenance checklist and schedule in the report, in accordance with Section 2.3.1.6 A (5). 6. As part of the basin maintenance checklist, state that the annual inspection report shall contain the following summaries: (provide language verbatim, as written in Section 2.3.1.6 C 2 a & b). 7. Describe and demonstrate how site grading will comply with Chapters 1 and 4 of the Pima County/City of Tucson Stormwater Detention/Retention Manual, with particular attention/discussion given to how the basins will serve as project amenities, multi-use facilities, will be visually appealing, whether they will serve as human activity zones (8:1 slope maximums in such areas), and whether intended as passive and/or active recreation areas. In accordance with recent Mayor and Council directives, all new retention/detention basins must incorporate these items whenever possible. Please specifically address the following in a revised report: a) discuss the basin design with respect to its being a project amenity (DS 10-01.0, Sec. 4.2.1); b) discuss how the basin will serve as an active or passive recreation area, and provide appropriate design components such as structures or furnishings for people to sit upon (DS 10-01.0, Sec.4.2.2 & 4.2.3); c) discuss/demonstrate how water harvesting will be incorporated in landscape and detention/retention areas (DS 10-01.0, Sec. 4.2.6); d) demonstrate/provide for human activity zones within the basin - to include incorporating access slopes of 8:1 (H:V) max (DS 10-01.0, Sec. 4.3). 8. Please refer to Sections 3.5.1.1 - 3.5.1.4 of the Stormwater Detention/Retention Manual (DS 10-01.0) for additional retention/detention design guidelines that may be incorporated into the design of the basin. 9. Address the following items in need of revision in the report text, page 6: a) Correct the "calculated headwater elevation" of 2999.21 feet" It appears this value is intended to be 2491.21'; b) The text assumes pipe inverts of 2499.55 (NGVD) - a higher elevation than upstream 100-year water surface elevations. Appendix E (Plan # D-134, Sheet 5 of 6) provides invert elevations of 95.55 "in place". Revise as necessary. 10. Correct the Detention Basin 100-year water surface elevation provided (2478.65 feet) to an accurate elevation (page 10 - text). 11. Basin outflow (detention weir) calculations may not incorporate clogging for determination of basin outlet dimensions - revise these equations as required. SITE PLAN: Please note that revisions to the drainage report may result in necessary revisions or additions to the site plan. Please assure all revisions are depicted on the site plan. 1. Provide a basis of bearing (DS 2-02.2.1 A 5). 2. Depict and label new 6' sidewalk, 2' from back of curb and curb access ramps (Pima County/City of Tucson Standard Detail 207 (with truncated domes, per ADAAG), in the Nogales Highway Right of Way/frontage, in accordance with Mayor and Council directive and DS 3-01.3.3 A. 3. Depict and label future sight visibility triangles based upon future curb location for Nogales Highway, in accordance with the City's Major Streets and Routes (MS&R) Plan configuration for a 120' future right of way (DS 2-02.2.1 A 10 & DS 3-01.5.B 2). 4. Provide estimated cut/fill quantities (DS 2-02.2.1 A 17). 5. Dimension the ½ right of way for Nogales Highway - existing and proposed (DS 2-02.2.1 A 19). 6. Indicate whether the refuse provision is existing or proposed. Depict maneuverability/access to the dumpsters, assuring 36' and 50' inside and outside turning radii are provided. The refuse provision must be in accordance with DS 6-01.0 (DS 2-02.2.1 A 32). 7. Specify a minimum of 10 feet between sidewall bollards in the dumpster enclosure detail, and provide a minimum 2' horizontal clearance from the south property line (DS 6-01.0 Fig.1 & 6-01.4.0). 8. Depict the limits of the 100-yea floodplain with water surface elevations (DS 2-02.2.1 A 15).Provide estimated cut and fill quantities (DS 2-02.2.1 A 17). 9. Provide a note on the plan stating that (a) the owner or owners shall be solely responsible for operation, maintenance, and liability for drainage structures and detention basins; (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 each year, 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 and detention/retention facilities, should the City find the owner or owners deficient in their obligation to adequately operate and maintain their facilities" (DS 10-02.0, Section 14.3.2). FLOODPLAIN REQUIREMENTS: 10. Provide a note on the site plan stating that the Owner/Developer agrees to (1) have an Arizona Registered Professional Land Surveyor certify the lowest floor elevation of all new structures , and (2) obtain a Floodplain Use Permit from the City Engineer (DS 10-02.0, Sec.5.2.6). 12. Include a note to place all applicable machinery and equipment (furnaces, hot water heaters, heat pumps, air conditioners and their associated equipment - including all electrical equipment on an open utility platform that provide utility services for the building) at or above the regulatory flood elevation., and that certification of shall be performed by a state-registered land surveyor on an elevation certificate Tucson Code, Sec. 26-5.2 (11). 13. Provide an indemnification agreement note whereby the applicant agrees to hold the city and its officials, employees and agents, harmless and defend them from any and all claims for damages now and in the future relating to the use of the property sought to be developed by reason of flooding, flowage, erosion or damage caused by water, whether surface, flood or rainfall (Tuc. Code, Sec.26-11.2 b 6). 14. Provide a typical valley cross section showing the channel of the stream, elevation of land areas adjoining each side of the channel, cross sectional areas to be occupied by the proposed development, and high water information (Tuc. Code, Sec.26-11.2 A 2 a). GENERAL: 1. A grading permit will be required for this development. Please refer to Development Standard 11-01.0 for Excavation and Grading requirements. The grading plan must include existing and proposed elevations, grading limits, construction/grading notes and details, fully labeled and dimensioned, at a minimum. Additional information may be obtained via the following link: http://www.ci.tucson.az.us/dsd/DevStd1101.pdf 2. The applicant may wish to complete and include a grading permit application with three (3) sets of grading plans with the resubmittal package. A submittal under separate cover is acceptable, however. 3. Resubmittal will require a revised site plan (2 sets) and a revised drainage report (2 copies) addressing all comments provided above. Subsequent comments may be necessary upon resubmittal, depending on the nature and extent of revisions that occur to the plans. If you have any questions, I can be reached at 791-5550, extension 1189 or Doug.williams@tucson.az.gov Doug Williams Sr. Eng. Associate Engineering Division Development Services Department |
Final Status
| Task End Date | Reviewer's Name | Type of Review | Description |
|---|---|---|---|
| 07/14/2005 | ANGIE SHOFFSTALL | REJECT SHELF | Stop |
| 06/17/2005 | ANY | OUT TO CUSTOMER | Stopped |