B-16 Revised - C8-2018-0165.4A - Cascades at Onion Creek East District 5.pdf — original pdf

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SUBDIVISION REVIEW SHEET CASE NO.: C8-2018-0165.4A COMMISSION DATE: July 26, 2022 SUBDIVISION NAME: Cascades at Onion Creek East, Phase Four ADDRESS: 11601 S. IH 35 SVRD NB APPLICANT: M/I Homes of Austin, LLC (William G. Peckman) AGENT: LJA Engineering (Russell W. Kotara, P.E.) ZONING: I-SF-2 (single family) NEIGHBORHOOD PLAN: Southeast AREA: 22.34 acre (973,130 sf) LOTS: 110 COUNTY: Travis DISTRICT: 5 WATERSHED: Onion Creek JURISDICTION: Full Purpose SIDEWALKS: Sidewalks will be constructed along streets. VARIANCE: None DEPARTMENT COMMENTS: The request is for the approval of Cascades at Onion Creek East, Phase Four final plat comprised of 110 lots on 22.34 acre (973,130 sf). The plat does not comply with the criteria for approval in LDC 25-4-84(B) and staff recommends disapproval for the reasons listed in the attached comment report. An application that has been disapproved with reasons may be updated to address those reasons until the application expires. If the applicant submits an update to address the reasons for disapproval, that update will be presented to the Land Use Commission within fifteen days of submittal. STAFF RECOMMENDATION: Staff recommends disapproval of the final plat for reasons listed in Exhibit C in the support material. CASE MANAGER: Cesar Zavala PHONE: 512-974-3404 E-mail: cesar.zavala@austintexas.gov ATTACHMENTS Exhibit A: Vicinity map Exhibit B: Proposed final plat Exhibit C: Comment Report ` 2 of 14B-16 4/22/20224/22/20223 of 14B-164 of 14B-165 of 14B-16CITY OF AUSTIN –DEVELOPMENT SERVICES DEPARTMENT SUBDIVISION APPLICATION – MASTER COMMENT REPORT 11601 S IH 35 SVRD NB U0 512-974-3404 C8-2018-0165.4A CASE NUMBER: REVISION #: UPDATE: 00 CASE MANAGER: Cesar Zavala PHONE #: PROJECT NAME: Cascades at Onion Creek East, Phase Four Final Plat LOCATION: SUBMITTAL DATE: June 27, 2022 REPORT DUE DATE: July 21, 2022 FINAL REPORT DATE: July 20, 2022 STAFF REPORT: This report includes all staff comments received to date concerning your most recent subdivision application submittal. The comments may include requirements, recommendations, or information. The requirements in this report must be addressed by an updated submittal. The subdivision application will be approved when all requirements from each review discipline have been addressed. If you have any questions, concerns or if you require additional information about this report, please contact your case manager at the phone number listed above or by using the contact information listed for each reviewer in this report. Any change to the plan/plat shall not cause noncompliance with any applicable code or criteria. In addition, any change to the plat may trigger new comments. UPDATE DEADLINE INFORMATION (LDC 25-4-56; 25-4-82): All comments must be addressed by filing an updated submittal prior to the update deadline of September 26, 2022 . Otherwise, the application will expire. If this date falls on a weekend or City of Austin holiday, the next City of Austin workday will be the deadline. Extension of Review Period, Extension of Update Deadline and Tolling of Application Period do not apply to applications for preliminary plan, plat or subdivision construction plans (LDC 25-1-88; 25-1-89; 25-1- 90). UPDATE SUBMITTAL INSTRUCTIONS (LDC 25-1-83): 1. Applicants must make an appointment with Intake Staff (512-974-1770) in order to submit an update. (new webform) 2. Your update must include the following items: a. The revised plat/plan in pdf format b. A letter that addresses each comment in the master comment report 3. Updates must be submitted on an approved submittal date. Refer to the submittal calendar for a list of approved submittal dates. REVIEWERS: Planner 1 : Cindy Edmond AW Utility Development Services : Derek Tucker PARD / Planning & Design : Justin Stewart 911 Addressing : Janny Phung Drainage Engineering : Jay Baker Environmental : Pamela Abee-Taulli Subdivision : Cesar Zavala Water Quality : Jay Baker 6 of 14B-16Electric Review - Andrea Katz - 512-322-6957 Approved 911 Addressing Review - Janny Phung - janny.phung@austintexas.gov This plat review is rejected for the following: AD2: Please remove the punctuation marks from the location map and all other pages 1. PINEHURST DR 2. RIVER PLANTATION DR 3. CASCADES AVE 4. BRADSHAW RD 5. BAHAMA BREEZE DR – Page 2 AD3: CREEKHOLLOW DR – CREEK and HOLLOW are on the DO NOT USE LIST. Reserve another street name AD4: Please update label to read as follows ONION CREEK PKWY in the location map. The street is missing the street type AD5: PINEHURST DR does not exist north of ONION CREEK PKWY, please correct the linework 7 of 14B-16 NOTE: Punctuation or diacritical marks cause confusion for first responders NOTE: BAHAMA BREEZE DR and TUMALO DR are reserved NOTE: The standards applied to all new street names in Travis County can be found at this link: http://www.austintexas.gov/sites/default/files/files/Information_Technology/911Addressing/Street_Name_ Standards.pdf (This document takes less than 10 minutes to read.) NOTE: A link to Reserve A Street Name, which includes links to both the Standards and to an online searchable list of names already in use can be found by visiting the Addressing Website http://www.austintexas.gov/department/911-addressing and navigating to Reserve a Street Name. To search the Street Name Database efficiently, avoid using Internet Explorer. Active streets and address points can be viewed on Property Profile https://maps.austintexas.gov/GIS/PropertyProfile/ §25-4-155 8 of 14B-16ATD Engineering Review - Dari Majd - 512-974-4024 ATD 1. in your update. Additional comments may be provided as a result of information or design changes provided Drainage Engineering Review - Jay Baker - 512-974-2636 Release of this application does not constitute a verification of all data, information, and calculations supplied by the applicant. The engineer of record is solely responsible for the completeness, accuracy, and adequacy of his/her submittal, whether or not the application is reviewed for code compliance by city engineers. DATE: 7/19/22 ORIGINAL COMMENTS FORMAL UPDATE REQUESTED Please provide a comment response letter with the update addressing each of the following comments. All engineering representations must be signed by the responsible engineer. Additional comments may be issued as additional information is received. ENGINEER’S REPORT DE 1. There is a significant off-site drainage area draining to this subdivision’s southeast corner, (DA 300, 64.9 acres). Provide additional hydrologic/hydraulic analysis demonstrating that the off-site drainage can be conveyed through the subdivision and the 100 yre fully developed runoff will be contained within the drainage easements [LDC 25-7-151 and 152] DE 2. The engineer has indicated that the construction plan is proposing to not extend Creekhollow Drive to the property line, to allow for flow conveyance in this area. This will require coordination with the transportation and subdivision reviewers. Depending on the outcome of the analysis, a preliminary plan revision may be required. To be coordinated with the case manager. [LDC 25-7-151 and 152] DE 3. This subdivision is participating in an off-site detention and water quality pond. Provide additional information confirming that this subdivision is within the design parameters for the pond. In addition, provide documentation that the off-site pond was constructed and accepted in accordance with the approved plans and is in current good working condition.[LDC 25-7-61] DE 4. Provide a storm sewer schematic for this subdivision, demonstrating conveyance to the off-site detention and water quality pond through infrastructure provided in additional subdivision sections. Provide documentation confirming that the infrastructure has been constructed and accepted in accordance with the approved plans and is in good working condition. .[LDC 25-7-61] PLAT SHEETS DE 5. Clearly label all drainage easements. I do not see drainage easement in the legend. [LDC 25-7- 152] DE 6. Access from a public road is required for maintenance and/or inspection of all Drainage Easements 25 feet or larger - label all proposed Drainage Easements and provide a Drainage Access Easement of no less than 15 feet in width. [LDC 25-7-152] DE 7. Verify that drainage facilities (headwalls, open channels, storm sewers, area inlets, detention, retention, water quality controls) located within drainage easements comply with Section 1.2.4 of the 9 of 14B-16Drainage Criteria Manual. Especially consider, access drives (widths, grades), fences, staging areas, etc.[DCM 1.2.4] PLAT NOTES DE 8. Remove all inappropriate and unnecessary notes unless required by another reviewer. Contact me to go over in more detail prior to submitting the update. [LDC 25-1-83] DE 9. Add the following note [LDC 25-1-83]: "Prior to construction, except detached single family on any lot in this subdivision, a site development permit must be obtained from the City of Austin." DE 10. Add one of the following Detention Note. Include in the note where the off-site detention and water quality facility is located, including the subdivision name and permit number [LDC 25-7-61, DCM 1.2.2, DCM 8.2.1, DCM 8.3.2]: "Prior to construction on lots in this subdivision, drainage plans will be submitted to the City of Austin for review. Rainfall run-off shall be held to the amount existing at undeveloped status by ponding or other approved methods. All proposed construction or site alteration on Lot(s) _____ Block(s) ______ requires approval of a separate Development Permit." DE 11. Revise note # 8 to read as follows: [LDC 25-7-2, LDC 25-7-3, LDC 25-7-4] [LDC 25-7-152]: "No buildings, fences, landscaping or other obstructions are permitted in drainage easements except as approved by the City of Austin or Travis County." DE 12. Revise note #9 to read as follows: [LDC 25-7-152]: "All drainage easements on private property shall be maintained by the property owner or assigns." DE 13. Revise note #10 to read as follows: [LDC 25-7-152]: "Property owner shall provide for access to drainage easements as may be necessary and shall not prohibit access by governmental authorities." FISCAL DE 14. Fiscal arrangements are required for street, sidewalk, drainage, restoration, erosion controls and boundary street improvements [LDC 25-1-112] [LDC 25-4-38] In the City of Austin jurisdiction, fiscal surety is not collected for local streets and drainage. Please contact me to discuss what will need to be included in the fiscal estimate. Remember to include fiscal for sidewalks located next to greenbelts, open spaces, landscape areas, and other common areas. Provide an engineer’s estimate of fiscal requirements for review and approval.[LDC 25-4-38] Environmental Review - Pamela Abee-Taulli - 512-974-1879 PLAT NOTES [LDC 25-1, Article 4] EV 0 Note #23 states: “Waterway setbacks as defined by the Land Development Code may be located on this property. Development is limited within waterway setbacks.” [LDC 25-8, Article 7] However, the preliminary plan does not show a CWQZ in the section that is included in this plat. Explain why the CWQZ appears to stop at Cascades Ave. in the preliminary plan (first clip) and is not shown as it is in Property Profile (second clip) and in the ERI (third clip). 10 of 14B-16 ESC FISCAL SURETY [LDC 25-1, Article 5; ECM Appendix S-1] EV 0 Provide a conceptual erosion & sedimentation control plan along with the fiscal estimate for erosion/sedimentation controls and revegetation based on ECM Appendix S-1. A conceptual ESC plan is necessary to assess the accuracy of the ESC fiscal estimate. ESC fiscal surety must be posted with the City of Austin prior to Plat approval. Additional fiscal posting might be required at the time of subdivision construction plan ESC review.  Sites with a limit of construction greater than one acre must include a $3000 per acre LOC clean- up fee in the fiscal estimate. [LDC 25-8, Subchapter A, Article 5; ECM Appendix S-1]  The revegetation line item quantity must equal the entire LOC area less any existing impervious cover proposed to remain and less proposed public streets and sidewalks. This is necessary in the event that construction ceases after vegetation has been removed from within the LOC. [LDC 25-8, Subchapter A, Article 5; ECM Appendix S-1] Flood Plain Review - Zach Kretsch - 512-974-3363 DATE REVIEWED: 7/12/2022 UPDATE # U0 General notes: The address provided for this final plat is incorrect and the lot lies farther southeast on part of the undeveloped cascades avenue. There is a CWQZ on the eastern portion of the lot indicating 64 acres or more of convergence on the site. The applicant has the CWQZ shown as cut off to the north of the site. A project assessment will be required to review the floodplain. If the floodplain in question has been reviewed in the past, provide the case number for where it has been reviewed and approved. U0: Applicant states that the floodplain has been reviewed with case C8-2018-0165 preliminary plan and uses ATLAS 14 rainfall data. The floodplain does not encroach onto the plat due to rerouting proposed during the construction plan phase. 11 of 14B-16At subdivision construction submittal: At construction, please demonstrate that the proposed inlet for Area 300 has sufficient capacity to re-route flows as mentioned in the drainage report (p.10). PARD / Planning & Design Review - Justin Stewart - 512-974-9475 Update:0 PR1: Parkland dedication will be required per City Code §25-1-601prior to plat approval and will be satisfied with fees in lieu. Please confirm the total unit count is 104. Subdivision Review - Cesar Zavala - 512-974-3404 SR 1. This application was submitted on Jan 2, 2022, and is subject to the following deadlines (25-1-83; 30-1-113; 25-4-84; 30-2-84; 25-4-85):  Update deadline: September 26, 2022  Fiscal due: December 27, 2022  Recording due: January 18, 2023 SR 2. Remove the Application Submittal Date from the plat. 25-1-83, 30-1-113 SR 3. Add the case number on the plat, list the case number on the lower right margin, C8-2018- 0165.4A . 25-1-83, 30-1-113 SR 4. Update the listed year within the approval blocks to 2022. 25-1-83, 30-1-113 SR 5. Add/modify the recordation block as shown: 25-1-83, 30-1-113 STATE OF TEXAS COUNTY OF TRAVIS I, Rebecca Guerrero, Clerk of Travis County, Texas, do hereby certify that the foregoing instrument of writing and its certificate of authentication was filed for record in my office on the __ day of ___________, 20__, A.D., at ____ o’clock ___.M., duly recorded on the __ day of __________, 20__, A.D., at __o’clock __.M, of said County and State in Document Number _______________ of the Official Public Records of Travis County. Witness my hand and seal of the office of the county clerk, this the __ day of _____________ 20__, A.D. ___________________________________ Deputy, County Clerk Travis County, Texas SR 6. Label the lots on Sheet 2 that will have open space or other nonresidential uses. 25-1-83, 30-1- SR 7. Verify the lots that will not have a residential use, such as lots for open space, trail, or drainage, include these lots in a note stating the owner of the lots and which organization will maintain the lots. In the note include that no residential uses are allowed on the listed lots. 25-1-83, 30-1-113 113 12 of 14B-16SR 8. Contact the Customer Experience Group/Intake to correct the listed address and tax parcel I.D in the database. 25-1-83, 30-1-113 SR 9. This case requires land use commission action because the plat has more than five lots. The case will be statutorily disapproved by the commission on the July 26, 2022 commission meeting. AW Utility Development Services - Derek Tucker - 512-972-0077 AW1. Per Utility Criteria Manual Section 2, §15-9, §25-4, §25-5, §25-9, and the Uniform Plumbing Code: The landowner intends to serve each lot with City of Austin water and wastewater utilities. Each lot must have a separate water and wastewater utility connection and no existing or proposed plumbing may cross lot lines. The landowner, at own expense, will be responsible for providing the water and wastewater utility improvements, offsite main extensions, system upgrades, utility relocations and or abandonments to serve each lot. FYI. The landowner must pay the tap and impact fee once the landowner makes an application for a City of Austin water and wastewater utility tap permit. Water Quality Review - Jay Baker - 512-974-2636 Release of this application does not constitute a verification of all data, information, and calculations supplied by the applicant. The engineer of record is solely responsible for the completeness, accuracy, and adequacy of his/her submittal, whether or not the application is reviewed for code compliance by city engineers. DATE: 7/19/22 ORIGINAL COMMENTS FORMAL UPDATE REQUESTED Please provide a comment response letter with the update addressing each of the following comments. All engineering representations must be signed by the responsible engineer. Additional comments may be issued as additional information is received. LANDFILL WQ 1. Provide Landfill Certification. The landfill certification form can be found at the following link: [LDC 25-1-84, 30-1-114] https://austintexas.gov/sites/default/files/files/Planning/Applications_Forms/Landfill_Verification_Form.pdf PLAT NOTES WQ 2. Remove note #11 which is unnecessary WQ 3. Add the water quality plat note to read as follows: [LDC 25-8-211, 30-5-211] "Water quality controls are required for all development pursuant to the Land Development Code” ENGINEER’S REPORT WQ 4. Include additional analysis that this subdivision is within the design parameters for the off-site water quality pond. In addition, confirm that the water quality pond meets the requirements for COA maintained facilities including DCM 1.2.4.E requirements for maintenance and safety. [LDC 25-8-211] 13 of 14B-16Site Plan Plumbing - Juan Beltran - 512-972-2095 APPROVED The proposed final plat (C8-2018-0165.4A) is approved from a plumbing code perspective. End of report 14 of 14B-16