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HomeMy WebLinkAboutSUB202000047 Review Comments Final Plat 2020-06-04COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Final Plat review Project title: Glenmore K2CII Subdivision —Phase 3 / Final Plat Project file number: SUB202000047 Plat Preparer: Nicholas Hutchinson, Roudabush Gale & Assoc. / 914 Monticello Road Charlottesville, VA 22902 [ nhutchinsonaroudabush.com ] Owner or rep.: Glenmore Partners, P.O. Box 645 / Charlottesville, VA 22902 Jess Achenbach [ jessgreddirtdev.com ] Also: Keane Rucker, Shimp Engineering keane(&shimp-en ing eerieg com Shimp Engineering P.C., 912 E. High Street, Charlottesville, VA 22902) Date Received: 11 Mar 2020 (Rev. 1) 15 May 2020 —digital (email .PDF) (Rev. 2) 4 Jun 2020 —digital (e-mail. PDF) Date of comments: 13 Apr 2020 (Rev. 1) 3 Jun 2020 (Rev. 2) 4 Jun 2020 Plat Coordinator: Tori Kanellopoulos Reviewer: John Anderson Nick, we have reviewed the final plat and have the following comments: Engineering Sheet 1 (Note 7) and sheet 2: please check reference to Flood Zone `X,' which may need to be revised to ref. Flood Zone `A.' Lots 31, 32. (Rev. 1) Addressed. As supplement to Note 7. (Lot 31), please include Note 7a. with text indicating: `Encroachment prohibited unless owner demonstrates no increase in water surface elevation of the base flood. Any encroachment, including new construction, substantial improvements, fencing crossing a stream channel, or other development, but excluding fill, is prohibited unless the owner demonstrates in a floodplain impact plan that the proposed encroachment will not result in any increase in the water surface elevation of the base flood within the county during the occurrence of the base flood discharge. Encroachment which would increase the water surface elevation may be allowed with Conditional Letter of Map Revision' [code 18- 30.3.13.A.1./2.]. This note is not requested if parcel boundaries Lot 31 are revised to exclude all portions of FEMA mapped flood Zone AE (floodway). (Rev. 1) Addressed. Applicant furnished FEMA FIRM panel 51003CO450D that indicates no portion of Carroll Creek includes mapped floodway. Rivanna River has floodway, but no potion of Carroll Creek. Blue circle (image below) indicates approx. location of Glenmore K2CI1 development. Diagonal hatching indicates mapped floodway. GLASGIOW RIVANNA ZONE wALLILN PADDINGTON ,NE X RNER X LNFORD GIR 78'22' 30' 380 p0' 00' a209COD M �8 LTSHIRE CLOSE R9 '� ERNDOWN LN DUNSGROFT CT i i e PIPERFIFE CT PL AE A M X CREEK ONE X Creek •LONGBRANICH �\M'i' FARM X ZONE A o� - • IVANNA RIVER 0. Engineering Review Comments Page 2 of 4 Sheet 2 3. Recommend sheet title be revised to include existing, to read: `Subdivision and Existing Easement Plat...' (Rev. 1) Addressed. 4. Check FEMA Flood Zone "X" label (between Zone "AU and higher elevation Zone 'X" Possible typo may need to be revised to read Zone "A" in several locations. Zone "A" maps the 1 % probability event, or 100-yr floodplain. Floodway, Zone "AE", requirements are so strict that it may be better to exclude all portions of Zone AE from Lot 31. Also, review item 6, below. (Rev. 1) Withdrawn. Review error. 5. Provide deed bk.-pg. ref. for Drumin Road (bk. 5136, pg. 589). (Rev. 1) Addressed. 6. Lot 31 may include trace area depicted as FEMA Flood Zone "AE." Recommend exclude FEMA Zone AE (floodway) so that future private homeowner activity, although possibly subject to flood hazard overlay district requirements relating to Zone "A", will not be subject to Zone "AU limitations; else, please provide sheet 1, Note 7a., as supplement. (Rev. 1) Withdrawn. Review error. Sheet 3 7. Please add C12 to curve table. (Rev. 1) Addressed. 8. Please split C21 into 2 arcs, one of L=106.27', the other=40.45'. Revise curve table, as needed. (Rev. 1) Addressed. 9. Road "D', unless a permanent name, may not meet E-911 addressing requirements. Engineering defers to GIS. (GIS review comment, 3/13/20 = `No objection') (Rev. 1) Addressed. 10. Drumin Road and Road "D": Engineering recommends revise 50' private rights -of -way labels to read 50' private access easement. Right-of-way is a term often reserved for roads dedicated to public use (and accepted into the secondary system of highways). Engineering defers to Planning, which may find Engineering Review Comments Page 3 of 4 proposed 50' private right-of-way labels acceptable. (Rev. 1) Comment persists. See Planning Div. email. 6/3/2020 10:48 AM. (Rev. 2) Addressed. 11. If road plan bonds are phased and Road "D" and portion of Drumin Road established with phase 3 are not bonded, Applicant is advised to request bond estimate for phase 3 portion of Glenmore K2CII development (roads /equestrian trail). Also, please see 4/3/20 Planning review comment, item 7. (Rev. 1, 2) Persists. Applicant response (5/15/20 letter): `Noted.' Sheet 4 12. Revise one of two WE31 line segments to WE32. (Rev. 1) Addressed. 13. If Planning supports Engineering review comment 10, then sheet 1, Note 14 may be insufficient, and sheet 4 may need to provide linework /curve data to establish ACSA sanitary and waterline easements. Engineering defers to Planning and ACSA. (Or, to simplify, sheet 4 labels may establish ACSA Waterline /San. Sewer easements identical with 50' private access easements.) (Rev. 1) Persists. It appears roads created with plat exist within private street easements, which may necessitate plat establish ACSA sanitary and waterline easements. Engineering defers to Planning /ACSA. (Note: ACSA issued brief review comment 4/3/20, which makes no mention of this.) (Rev. 2) Addressed. Applicant email (6/4/2020 3:39 PM): `We also changed the language on note 14 to reflect this and had Alex Morrison with Albemarle County Service Authority review. He said it was sufficient for them (comment 13 on Engineering review comments).' 14. Note: Engineering requests Applicant provide 1.19 lb. nutrient credit purchase prior to Phase 3 final plat approval. Ref. email sent this date to Applicant (April 13, 2020 10:17 AM). (Rev. 1) Withdrawn. Review error. Ref. email, 4/29/2020 4:22 PM, for further detail. After review and discussion with Justin Shimp and Keane Rucker, who provided critical assistance, it appears that the developer has provided M. more phosphorus reduction than is /was required for K2C-II. Ref. email, item 14.h.xii. Attached. 15. Note: Please consider Planning review comment 5 (4/3/20; email April 3, 2020 3:02 PM). Please examine plat linework /labels for FEMA mapped Zones "X", "A", and "AE" which appear inconsistent with GIS. Zone "AE" in particular appears not to exist on any portion of any Lot in Phase 3 subdivision. If FEMA Zones depicted on plat are accurate (in RGA view), items 1, 2, 4, 6 remain relevant, and require response. Items 2 and 6 may be irrelevant, and require no response, given VFRIS limits of FEMA mapped floodway (red diagonal hatching, Zone AE, image below). (Rev. 1) Addressed /withdrawn. See related comments on floodplain limits /zones. No aspect of floodplain-related comments persists. If you have questions or concerns, please contact me at janderson2(a�albemarle.org, or at 434-296-5832 ext. 3069. Thank you J. Anderson SUB202000047 Glenmore K2CII Phase 3 Final Plat 060420rev2 Re. Item 15 Images /Next p. (GIS NFRIS — link: https://consappsrpt.dcr.virginia.gov/vafloodrisk/vfris2.html K2CII, Phase 3 circled Engineering Review Comments Page 4 of 4 ''li-mm t1U , aL-01 Ell