B-15 (REVISED C8-2018-0165.2A - Cascades at Onion Creek, Phase Two Final Plat; District 5).pdf — original pdf

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SUBDIVISION REVIEW SHEET CASE NO.: C8-2018-0165.2A Z.A.P. DATE: January 26, 2021 SUBDIVISION NAME: Cascades at Onion Creek East, Phase Two AREA: 31.18 acres LOTS: 136 APPLICANT: M/I Homes of Austin, LLC (William G. Peckman) AGENT: LJA Engineering Inc. (Russell Kotara, P.E.) ADDRESS OF SUBDIVISION: 2333 Cascades Ave WATERSHED: Onion Creek COUNTY: Travis EXISTING ZONING: I-SF-2 JURISDICTION: Full Purpose PROPOSED LAND USE: Residential / Open Space / Right-of-Way DEPARTMENT COMMENTS: The request is for the approval of Cascades at Onion Creek East, Phase Two, comprised of 136 lots on 31.18 acres. The applicant proposes to subdivide the property into 136 lots for residential use with related improvements. The developer will be responsible for all cost associated with required improvements. The applicant has addressed code related comments, outstanding comments are for the submittal of fiscal fees. Any fiscal amount can be posted 90 days after the commission approves a final plat as stated in L.D.C. 25-4-84. STAFF RECOMMENDATION: The staff recommends approval of the subdivision, the plat meets all applicable State and City of Austin Land Development Code requirements. CASE MANAGER: Cesar Zavala E-mail: cesar.zavala@austintexas.gov PHONE: 512-974-3404 ATTACHMENTS Exhibit A: Vicinity map Exhibit B: Proposed plat Exhibit C: Comment report dated January 25, 2021 B-15REVISED1 of 9EXHIBIT A B-15REVISED2 of 9EXHIBIT B 1/25/20211/25/2021B-15REVISED3 of 9B-15REVISED4 of 9B-15REVISED5 of 9B-15REVISED6 of 9CITY OF AUSTIN –DEVELOPMENT SERVICES DEPARTMENT SUBDIVISION APPLICATION – MASTER COMMENT REPORT EXHIBIT C CASE NUMBER: REVISION #: CASE MANAGER: C8-2018-0165.2A 00 Cesar Zavala UPDATE: U2 PHONE #: 512-974-3404 PROJECT NAME: LOCATION: Cascades at Onion Creek, Phase Two Final Plat 2333 CASCADES AVE SUBMITTAL DATE: January 11, 2021 REPORT DUE DATE: January 25, 2021 FINAL REPORT DATE: January 20, 2021 REVISED FIRNAL REPORT DATE: January 25, 2021 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 March 15, 2021. 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): Coordinate addressing remaining comments with each reviewer listed below, comments related to the posting of fiscal can be addressed after the Planning Commission approves the case. If comments not related to fiscal can be addressed by Friday morning, January 22, 2021, the case can be placed on next week’s Planning Commission for approval. Forward a copy of the updated plat as soon as available to include in the commission support material. B-15REVISED7 of 9Flood Plain Review - Joydeep Goswami - - Floodplain Review – Joydeep Goswami – (512) 974-3521 FP1. As of 11/25/2019, the City of Austin regulates to Atlas 14 floodplains. Applicant is required to use the 500-year floodplain as a stand-in for the 100-year or calculate the location of the 100-year floodplain utilizing Atlas 14 rain fall amounts (as outlined in Rule R161-20.01). Floodplain review comments are based on rules in effect on Initial Submittal date. (ordinance number 20191114- 064). Please clarify which storm event was used to delineate the 100-year floodplain on site. Update #1: Please supply a cross section location map the contour elevations to make it clear the floodplain is delineated correctly. Update #2: The cross-section location map was not received to confirm the delineation of the floodplain. Please resubmit. Please contact this reviewer if further clarification regarding this comment is needed. Update #2: Comment cleared. FP2. Delineate the COA and FEMA regulatory floodplains per LDC 25-7-33. Update #1: Please see Update #1 response to comment FP1. Comment pending confirmation of floodplain delineation. Update #2: The cross-section location map was not received to confirm the delineation of the floodplain. Please resubmit. Please contact this reviewer if further clarification regarding this comment is needed. Update #2: Comment cleared. FP3. FYI: The following will be needed prior to approval of the plan and will be requested if not provided at formal submittal: a. b. c. Confirmation statement that the best available data was used to delineate the COA floodplain (DCM 1.2.6) (if utilizing COA/FEMA models) Signed and sealed statement certifying the accuracy of the models for the site (LDC 25-7-61) Digital copy of the floodplain model and all associated backup data within a signed & sealed report (LDC 25-7-33 & 61; DCM 1.2.6) i. NOTE: A digital version of the report and all associated backup data may be emailed to Joydeep.Goswami@austintexas.gov. Update #1: The electronic copy of the model was not received by this reviewer as stated in the comment response letter. Please send the model to Joydeep.Goswami@austintexas.gov. Update #2: Comment cleared. Environmental Review - Jonathan Garner - 512-974-1665 ESC FISCAL SURETY [LDC 25-1, Article 5; ECM Appendix S-1] EV 1 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]  Sites with a limit of construction greater than 25 acres are required to show phasing of disturbance tailored to the specific site conditions. A phased ESC plan and phased fiscal estimate are required. [LDC 25-8, Subchapter A, Article 7, Division 4; ECM 1.4.4]  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] B-15REVISED8 of 9Update 1 Comment pending. A conceptual ESC Plan must also be provided to compare against the proposed fiscal estimate. This comment may be cleared informally by emailing the conceptual ESC Plan to this reviewer. Update 2 fiscalsurety@austintexas.gov for ESC fiscal posting instructions. The ESC fiscal estimate is approved. Please contact the Fiscal Office at Drainage Engineering Review - David Marquez - 512-974-3389 DE1 Per the fiscal policy, fiscal will need to be collected prior to approval for the drainage infrastructure that will be proposed in the arterial or collector roads and for proposed ponds in the subdivision. Submit an estimate and a breakdown for the drainage infrastructure in the ROW for the arterial or collector roads and for the ponds proposed. U1- Comment pending and informal until payment of fiscal U2- Comment pending Subdivision Review - Cesar Zavala - 512-974-3404 SR 1. – SR 6. Comments Cleared. SR 7. The following items are needed to approve the case and record the plat at Travis County (T.L.G.C    212.004(d) / T.L.G.C 212.014) : Mylars containing original signatures, with appropriate seals and dates. All signatures, seals and stamps on the plat must be legible and in black ink. Original tax certificate(s) showing all taxes paid for the previous year. (can be provided after approval of the plat) Check for the plat recordation fee and any associated documents. (can be provided after approval of the plat) New Comments: SR 8. – SR 10. Comments Cleared. END OF REPORT B-15REVISED9 of 9