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HomeMy WebLinkAboutSUB202200092 Review Comments Final Plat 2022-06-23County of Albemarle COMMUNITY DEVELOPMENT DEPARTMENT ��BGIN�Q' Plat Review Project title: RST Residences — BLA (Plat) Project file number: SUB2022-00092 Plan preparer: Ryan Yauger, PE [ rvaueer&bohlereng.com ] Bohler Engineering 9100 Arboretum Pkwy, Suite 360 Richmond, VA 23236 Owner or rep.: AlexArstdevelooment.com RST Development, LLC 6110 Executive Blvd.,4620 Rockville, MD 20852 Seminole Trail LLC / c/o RST Development LLC 168 Business Park Dr. Suite 200 / Virginia Beach, VA 23462 Plan received date: 20 May 2022 Date of comments: 23 Jun 2022 Reviewer: John Anderson Review Coordinator: Kevin McCollum 401 McIntire Road, North Wing Charlottesville, VA 22902-4579 Telephone: 434-296-5832 WWW.ALBEMARLE.ORG Engineering has reviewed the boundary line adjustment plat, and offers the following review comments: 1. Sheet 1: Provide note to indicate steep slopes exist on TMPs (PIDs) 04600-00-00-10800 and 04600-00-00- 10900, as well as steep slopes field -surveyed on 12/23/20 found to be less steep than 25 percent slope. 2. Sheet 2 a. Since separate deeds accompany SWM and public drainage easements, please provide graphic separation to discriminate variable (or fixed) width storm water management facility easement/s from public drainage easements (SWM facility pipe outfalls) as shown on system 1 and 2 plan views, sheet C-907 (Bolder Engineering, 5/18/22, WP02021-000581. best accomplished by: i. East SWM facility: 1. No new or revised linework, but leader lines with labels that define a portion of SD20 (51.50% SD21, SD22, and 6.30' (tie) as shared, common to both variable width SWM facility easement, and public drainage easement. The public drainage easement at East SWM facility consists of SD7-SD12, together with line segments common to both SWM and pipe outfall. 2. Revise SD7-SD-12 labels in favor of PD7, PD8, ... PD12 to distinguish public drainage easement from storm drain easement lines (SWM facility easement), alternative labels are needed for public drainage easement (SWM pipe outfall). 3. Provide leader line for public drainage easement. 4. Revise sheet 1 tables, as needed. ii. West SWM facility: 1. No new or revised linework, but provide leader line Aabel to identify a portion of SD5 (slightly > 20.0') as shared, common to 49.10' SWM facility easement, and 20' public drainage easement. The public drainage easement at West SWM facility consists of SD3, SD4, and portions of SD5 and 435.88' Lot 2 boundary (slightly >20.0'). Engineering Review Comments Page 2 of 2 2. Revise SD3, SD4 labels in favor of PD3, PD4 (or similar) to distinguish public drainage easement from storm drain easement lines. Alternative label is needed for public drainage easement (SWM pipe outfall). 3. Provide tie, SD4 to SD5. 4. Revise SWM easement label to 49.10' storm water management facility easement (hereby dedicated) rather than variable width. 5. Provide leader line /label for public drainage easement at west SWM facility. 6. Revise /create sheet 1 tables, as needed. b. Provide (show, label, define) SWM facility access easement between SWM system 2 and private access easement (plat, sheet 3), to provide corridor for future maintenance/replacement. c. Calculate and label SWM facility easement areas (ft2). 3. Sheet 4 a. Please check PA ties (383.60', 340.61') and 34.00' PA width against 755.43' boundary length. b. Provide alternate tie to rebar w/cap set to an boundary monument, since 91.2' tie to U.S. Rte. 29 station 2657+31.80 is a design reference not verifiable in the field (not a monument), recommend tie to monument that may lie = S27°14'53"W, a boundary comer of PID: 046135-00-00-001D0. Thank you. Please call if any questions — tel. 434.296-5832-x3069, or email ianderosn2(a),albemarle.org. SUB202200092_RST Residences _BLA-plat_062322