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HomeMy WebLinkAboutSDP201900067 Review Comments Final Site Plan and Comps. 2019-12-10COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, North Wing Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Memorandum To: Mr. Keane Rucker, E.I.T., Shimp Engineering (keanekshimp-engineering com) — Primary Contact Ecovillage Holdings Inc. — c/o Mr. Tom Hickman (thickman56(aa�gmail.com) — Owner From: Tim Padalino, AICP Division: Community Development — Planning Date: December 10, 2019 Subject: Review Comment Letter #1— SDP-2019-00067 (Ecovillage — Final Site Plan) The plan referred to above has been reviewed by the Planning Services Division of the Albemarle County Department of Community Development (CDD) and by other members of the Site Review Committee (SRC). The Planner the will approve the plan referred to above when the following items (below, from CDD-Planning and from applicable SRC plan reviewers) have been satisfactorily addressed and when each applicable SRC plan reviewers have indicated in writing their tentative approval of SDP201900067. The following comments include those that have been identified as outstanding from the initial site plan review as well as those identified in reviewing the final site plan; additional comments or conditions may be added or eliminated based on revision and/or based on further review. Each comment is preceded by the applicable reference to the Albemarle County Code. REVIEW COMMENTS REQUIRING REVISIONS TO SDP201900067: [SP-2018-16 Conditions of Approval #1, #3, and #41: Please note the following review comments regarding SP201800016 conditions of approval #1, #3, and #4, primarily relating to the following requirements established by the Board of Supervisors through special use permit SP201800016: (#1) the Limits of Disturbance shown on Final Site Plan SDP201900067 and WP0201900053 being in general accord with the "Supplementary Exhibits" packet dated 2/4/2019; (0) the Stormwater, Drainage, and Grading Plans shown on Final Site Plan SDP201900067 and WP0201900053 being in general accord with the "Stormwater Improvements" exhibit and "Proposed Entrance Layout" exhibit dated 2/27/2019 (inclusive of required modifications); and (#4) the on -site provision of DEQ-approved BMPs for water quality compliance. a. Please see CDD-Engineering comments for SDP201900067 and WP0201900053, and address and resolve those comments in coordination with CDD-Engineering staff. CDD-Planning staff remain available to assist with any and all questions relating to the Final Site Plan (and associated Water Protection Ordinance Plan) being in general accord with the application materials for SP201800016 referenced above and specified in the conditions of approval. 2. [SP-2018-16 Condition of Approval #2]: Please note the following review comments regarding SP201800016 condition of approval #2, primarily relating to the Landscape Plan shown on Final Site Plan SDP201900067 being in general accord with the "Habitat Planting Plan" and "Landscape Schedule" exhibit dated 2/26/2019 (inclusive of required modifications): a. (#2a): The "Landscape Schedule: Trees" for the "Habitat Planting Plan" on Sheet C9 ("Habitat Redevelopment Plan") specifies large shade trees at 1.5" caliper, which generally meets the minimum requirements specified by County Code § 18-32.7.9.5.c. However, SP201800016 condition of approval #2a establishes the specific requirement that 25% - 33% of tree plant materials and shrub plant materials meet the Entrance Corridor Design Guidelines, which specify a minimum caliper of 3.5" for large shade trees, and which specify large shade trees to be provided every 35' on center. Therefore, please revise the Landscape Schedule: Trees to ensure that 25% - 33% of the large shade trees are specified at a minimum caliper of 3.5;" the remaining 67% - 75% of the large shade trees can continue to be specified at 1.5" minimum caliper. b. (#2b): The "Landscape Schedule: Trees" for the "Habitat Planting Plan" on Sheet C9 ("Habitat Redevelopment Plan") specifies evergreen trees (Ilex opaca / American Holly) with a minimum height of 4' — 5' at time of planting. The corresponding "Habitat Planting Plan" appears to show 12 such trees. These specifications are acceptable relative to SP201800016 conditions of approval #2b. However, please revise the Habitat Planting Plan to include additional evergreen plants (Ilex opaca l American Holly tree; or Kalmia latifolia / Mountain Laurel shrub; or other native evergreen trees or c. Additionally, please cross-reference CDD-Planning comment #29 regarding the need to further revise Sheet C9 ("Habitat Redevelopment Plan") through the addition of landscape materials in the area between the two terraced retaining walls in the Steep Slopes Overlay District, as required per the applicable minimum design standards specified in County Code § 18-30.7.5. (Note: CDD-Planning staff acknowledge that, in this particular context, it might potentially be acceptable to satisfy this design standard through an alternative design other than "screening shrubs planted on ten foot centers," and remain available to answer questions, consider alternative designs, or otherwise assist.) 3. [18-32.6.2(a) and 18-32.5.2(a)]: Please add reference to SP201800016 approved by the Board of Supervisors on 5/1/2019 to Cover Sheet (C1), and please insert a copy of the Conditions of Approval to the Final Site Plan. 4. [18-32.6.2(a),18-32.5.2(a), and 18-32.5.2(b)]: Annotation on Sheet C2 indicates that the co -owned inheld parcel (TMP #06100-00-00-210A0) is to be formally added to TMP #06100-00-00-21000 ["TMP 61A-201A to be added to parent parcel (TMP 61-210 Parcel A-1)"]. (Note: the parcel reference appears to be incorrect; this should be "210A" and not "201A.") This proposed modification to existing parcels of record would require the submittal of a separate application for a final plat showing this vacation/boundary line adjustment for review, approval, and recordation prior to Final Site Plan approval. Alternately, please add existing parcel of record TMP #06100-00-00-210A0 to the Cover Sheet and please ensure the acreage information is accurate. 5. [18-32.6.2(a) and 18-32.5.2(a)]: On the Cover Sheet, please include specify the total number of sheets in the Sheet Index. 6. [18-Sec. 32.6.2(a) and 18-32.5.2(a)]: Please add the application number for this final site plan (SDP201900067) to the Cover Sheet, and please also include reference to the approved initial site plan application number (SDP201800056) on this sheet for reference purposes. 7. [18-15.4 and 18-2.41: Bonus Factors. Additional information is required for County staff to have sufficient detail to make a determination of the proposed bonus factor(s). Specifically, more information is required regarding the Environmental Standards, Development Standards, and Affordable Housing Bonus Factors, as identified in the following comments. Staff recommends adding an additional sheet which focuses on identifying all details, calculations, and justification of the proposed bonus factors. 8. [18-15.4.1, 18-2.4, and 18-32.7.91: Bonus Factors: Environmental Standards. In order to qualify for this bonus factor ("maintenance of existing wooded areas equal to 10-19% of the site"), a conservation plan as specified in section 32.7.9 is required. Please provide the required conservation plan and ensure Final Site Plan contains all necessary information. Additionally, the Cover Sheet (C1) indicates that this Final Site Plan includes "10% area preserved [as] oven space" and proposes a 5% density bonus (or 1.3 additional units). However, per County Code § 18-15.4.1, the "environmental standards" for this bonus factor require "maintenance of existing wooded areas" — not "preserved open space." Please re -calculate this (potential) bonus factor using the correct criteria ("maintenance of existing wooded areas"). Specifically, please identify the location, extent, and size of the "wooded area(s)" that are to be maintained on the applicable sheets; and please demonstrate that the "wooded areas" to be "maintain[ed]" are eligible for this bonus factor (relative to the definition of "wooded area" in County Code § 18-3, below), by identifying the "minimum number of trees of specified size or combinations thereof' in each "existing wooded area" to be "maintain[ed]." Wooded area, forested area: An area containing one of the minimum number of trees of specified size, or combinations thereof, from the following table: Diameter of Tree at Breast Height: Per One Acre: Per One -Half Acre: 3.0" - 4.9" 60 30 5.0" - 6.9" 38 19 7.0" - 8.9" 22 11 9.0" - 10.9" 14 7 11.0" - 12.9" 10 5 13.0" - 14.9" 7 4 15.0"+ 5 3 9. [18-15.4.2 and 18-2.41: Bonus Factors: Development Standards. Staff acknowledges the proposed "public access easement — 0.49 acres dedicated to public use" and the "0.12 acres dedicated to public ROW (added to Rio Road)." Please note the following review comments regarding the proposed "public access easement — 0.49 acres dedicated to public use." a. (18-15.4.2 — "For dedication of land to public use not otherwise required by law, density may be increased as follows: [... J "): The proposed establishment of a public use access easement for a shared - use path technically does not qualify as being eligible for the "Development Standards Bonus Factor" for "dedication of land to public use not otherwise required by law." To pursue bonus density utilizing this bonus factor (if desired/as may be applicable), the proposed easement would need to be modified to a proposed special lot for open space to be dedicated to the County for public use. Such a special lot would need to be established and dedicated on an approved and recorded plat, and would need to include a maintenance agreement establishing acceptable terms of maintenance of the shared -use path by the homeowners association/property owners association — all of which must be submitted, approved, and recorded prior to approval of the final site plan. b. (18-15.42 — "The dedication shall be accepted by the board of supervisors prior to final approval. "): Any such proposal for the "dedication of land to public use not otherwise required by law" (as may be applicable) must be sent to the Board of Supervisors for Board review and acceptance during the "Regular Board Action" portion of a regularly -scheduled Board meeting. (Note: this process does not require public hearing.) Additional communication and coordination with CDD-Planning staff and staff in the County Attorney's Office is necessary in order to prepare any such proposal/request for Board review and action. c. Any bonus density through this proposed "Development Standards Bonus Factor" is subject to further coordination with, and tentative approval by, Mr. Kevin McDermott, Principal Planner/Transportation and Mr. Frank Pohl, County Engineer (in coordination with CDD-Planning staff and Albemarle County Parks and Recreation staff). Please note that additional coordination with County staff is necessary in order to refine the proposed public access shared -use path prior to BOS review and (potential) acceptance. Specifically, the following aspects of the proposed path require further review and potential revision: ■ the proposed location and alignment of the public access easement — including its proposed termination at the Alwood Lane private street and not at the Rio Road E. public right of way; and ■ the potential need to incorporate signage that clearly communicates to members of the public that the shared -use path through the Ecovillage development is open to the public. 10. [18-15.4.2 and 18-2.41: Bonus Factors: Affordable Housing Standards. Please provide additional details to explain the bonus density for proposed affordable housing. Staff acknowledge that the Bonus Density Calculations indicate that this bonus factor will yield an additional 7.8 units; however, this information must be incorporated into the Site Plan with more detailed information [such as, at minimum, a note which confirms that "at least one-half of the additional housing units allowed by this density bonus shall be developed as affordable housing units" and which specifies the number of such affordable units, pursuant to County Code § 18- 15.4.3(a)]. Any bonus density through this proposed "Affordable Housing Bonus Factor" is subject to further coordination with, and tentative approval by, Mrs. Stacy Pethia, Principal Planner/Housing (in coordination with CDD- Planning staff). 11. [Z.O. Sec. 32.6.2(a), 32.5.2(o)]: Sheet C3 includes proposed right-of-way dedication along Rio Road E. Please add a note stating that this area is "dedicated to the County for public use — new right-of-way." Additionally, please note that any such dedication requires the submission, approval, and recordation of a plat containing the note "hereby dedicated to the County for public use" prior to final site plan approval. More details regarding platting requirements will be provided during the review of the pending final plat and/or easement plat. 12. [18-32.6.2(a) and 18-32.5.2(b)]: Annotation on Sheet C2 indicates that the existing structure addressed as 480 Rio Road East will be retained in the proposed development ("Demo all ex. Structures except this building"). Please ensure this existing structure is clearly shown on all other sheets in this Final Site Plan (as applicable). 13.[18-32.6.2(a), 18-32.5.2(a), 18-32.5.2(d), 18-30.7.4, and 18-30.7.51: Please revise the applicable sheets in this Final Site Plan to clearly show the location and extent of all Steep Slopes Preserved and Steep Slopes Managed. Staff acknowledges the note on Sheet C2 which states, "Note: managed slopes shown on this sheet only since they have no effect on this plan." However, these managed steep slopes do need to be shown, and the proposed public access easement for the proposed shared -use path appears to go through areas containing managed steep slopes — and would therefore need to comply with all applicable minimum design standards specified in County Code § 18-30.7.5. 14.[18-32.6.2(a), 18-32.5.2(a), 18-32.5.2(d), 18-30.7.4.b.1(h), and 18-30.7.51: Staff acknowledges the information on Sheet C2 which shows areas identified as "preserved slopes surveyed < 25%," and further acknowledges that the "Slopes" information on the Cover Sheet (C1) state that "9,866 SF of preserved slopes overlay was surveyed at less than 15% and do not qualify as preserved slopes." (Note: the reference appears to be incorrect; this should be "25%" and not "15%."). Staff also acknowledges that grading and/or improvements are proposed within the preserved steep slopes overlay district as shown on Sheet C3. However, no disturbance or improvements are permissible within the preserved steep slopes overlay district, unless and until new topographic information is submitted pursuant to County Code § 18-30.7.4.b. 1 (h) which demonstrates to the satisfaction of the County Engineer that the slopes are less than 25 percent. All disturbance or improvements proposed following any such acceptance/approval by the County Engineer must comply with all applicable design standards contained in County Code § 18-30.7.5. 15. [18-32.6.2(a) and 18-32.5.2(r)] : Please revise the legend and/or plans to clearly distinguish between "Property Line" and "Vacated Property Line." It is difficult to accurately determine the proposed property boundary(s) and proposed ROW limit(s) on Sheet C3 ("Site Layout"). 16.[18-32.6.2(a), 18-32.5.2(a), 18-32.5.2(b), 18-15.3, and 18-4.191: Please verify that all proposed dwellings comply with the minimum front yard setback (5') and maximum front yard setback (25') requirements. 17.[18-32.6.2(a), 18-32.5.2(a), 18-32.5.2(b), 18-15.3, and 18-4.191: It appears that portions of the existing dwelling that will be retained (identified as "Common House 1" and for which "Tourist Lodging" uses are proposed) does not meet the minimum front yard setback (5'). 18. [18-32.6.2(a) and 32.5.2(b)] : It appears that portions of the proposed "5' Sidewalk" are partially within the right of way of the proposed private streets and partially within proposed lots and/or proposed Open Space. Please clarify and/or please revise to locate sidewalk entirely within right of way or entirely within Open Space, as appropriate. Additional coordination with CDD-Planning staff and VDOT staff may be necessary. [Note: sidewalk standards and specifications will be subject to the requirements contained in County Code §§ 14- 410.H ("Standards for all streets and alleys.") and 14-422 ("Sidewalks and planting strips."), unless certain variations or exceptions are formally requested and approved (as may be appropriate) pursuant to County Code § § 14-422.E and 14.203.1, in conjunction with a pending application for a corresponding plat.] 19.[18-32.6.2(a),18-32.5.2(a),18-32.6.2(1), 18-15.7, and 18-4.161: ("Recreation regulations. Developed recreational area(s) shall be provided for every development of 30 units or more equal to or exceeding four dwelling units per acre, except for single-family and two-family dwellings developed on conventional lots.') Please identify the proposed developed recreation areas and facilities which meet or exceed the "minimum facilities" required by County Code § 18-4.16.2. Please also note that "Substitutions of equipment or facilities may be approved by the director of planning and community development, provided they offer a recreational amenity equivalent to the facilities listed above, and are appropriate to the needs of the occupants" may be requested pursuant to County Code § 18-4.16.2.1. 20. [18-32.6.2(a) and 18-32.5.2(n)]: On Sheet C3, please specify the maximum height of Common House 2. (Note: Staff acknowledges this proposed amenity appears to be a one story structure.) 21. [18-Sec. 32.6.2(a) and 18-32.5.2(n)]: Please ensure that specifications and details for all proposed paving materials and/or other surface materials for all sidewalks, paths, parking lots, driveways, and similar proposed improvements are included in the Final Site Plan. 22. [18-Sec. 32.6.20) and 18-32.7.91: Staff acknowledges the "Lighting" note on the Cover Sheet which states that "No outdoor lighting is proposed..." Please verify the intent that no outdoor lighting is proposed anywhere within this proposed development; however, please note that CDD-Planning staff might potentially require outdoor lighting in certain locations such as along the proposed public shared -use path (following additional coordination with other County staff — to be determined). Additionally, please also revise the "Lighting" note to reference the Final Site Plan (and not "Initial"). 23. [18-Sec. 32.6.20) and 18-32.7.91: On Sheets C8 and C9, please add genus and species names (or abbreviations) to identify the locations of proposed landscape materials. 24. [18-32.6.2(j), 18-32.7.9.4(b-c), and 18-32.7.9.5(b)]: Sheet C8 ("Landscape Plan") identifies areas labeled as "Trees to be Preserved." The following revisions are necessary in order for these calculations to be permissible: a. Please identify the location/extent and quantify the area of the existing tree canopy that will be preserved and maintained, as it appears that this area is being used for the proposed bonus density and (presumably) to meet tree canopy requirements and/or street tree requirements. b. Please insert a signed Conservation Checklist onto one of the Landscape Plan sheets and include any information required by the checklist into the plan documents (as specified by County Code § 18- 32.7.9.4.b.2). c. Please also revise the Grading Plan sheets and Landscape Plan sheets (where necessary) to clearly show the limits of disturbance, tree preservation practices, and all other required details (as specified in Z.O. 32.7.9.4.b.1) in relationship to the areas labeled as "Trees to be Preserved," in order to demonstrate that required conservation practices will be utilized for successfully preserving these existing trees. d. Please also cross-reference CDD-Planning comment #9. 25. [Z.O. Sec. 32.6.20), 32.7.9.4(b-c), 32.7.9.5(b)] : Please ensure that all new street trees are located outside of the Rio Road East right-of-way. 26. [18-32.3, 14-410.H]: Numerous street trees required per the "Landscaping Along Streets" requirements contained in County Code § 18-32.7.9.5 appear to be proposed in locations outside the right of way (ROW) for proposed new private streets. This is not permissible, unless a variation is formally requested and approved (as may be appropriate) pursuant to County Code § 18-32.3.5.b, and unless one or more private landscape easement(s) are established. Any such private landscape easement(s) to accommodate the required street trees outside of the ROW, if requested and if approved, would need to be shown on the corresponding final plat, and a note would need to be included on the final site plan and final plat, as follows (or similar): "The purpose of this landscape easement is to provide a location outside of the private street right way for the installation and perpetual maintenance of street trees, in order to satisfy the "landscaping along streets " requirements contained in Zoning Ordinance Section 32.7.9.5. The location of the required street trees within this landscape easement is permissible per a variation approved with conditions by the Agent, pursuant to Zoning Ordinance Section 32.3.5, on " 27. [18-32.7.9.4(d)]: Please add the required "verification of compliance" note; and please include the following standard plant health note: "All site plantings of trees and shrubs shall be allowed to reach, and be maintained at, mature height; the toping of trees is prohibited. Shrubs and trees shall be pruned minimally and only to support the overall health of the plant." 28. [18-30.7.51: The plan shows two proposed retaining walls within the Steep Slopes Overlay District, with proposed maximum heights of five (5) feet, as is permissible per SP201800016. However, these proposed retaining walls need to comply with all applicable design standards in County Code § 18-30.7.5. Therefore, it appears that revisions to the proposed retaining walls may be necessary in order to comply with the design standards contained in County Code § 18-30.7.5.a.2 ("Multiple stepped walls; separation") which specifies that "a minimum horizontal distance of three feet shall be maintained between each individual wall in a stepped wall system, and shall be landscaped with screening shrubs planted on ten foot centers." Please cross-reference CDD-Planning comment #2c. (Note: CDD-Planning staff acknowledge that, in this particular context, it might potentially be acceptable to satisfy this landscaping requirement through an alternative design other than "screening shrubs planted on ten foot centers," and remain available to answer questions, consider alternative designs, or otherwise assist.) 29. [18-15.3]: Minimum lot size for bonus -level conventional lots in the R-4 Residential District is 7,260 SF. Please identify the size of the proposed lots. 30. [18-32.7.3, 18-4.12.8, and 18-4.12.111: In order to allow parking spaces that are required to meet minimum parking requirements to be located separately from the residential lots, a Shared Parking Agreement must be submitted for review pursuant to County Code § 18-4.12.11 and approved (as may be appropriate) by the Zoning Administrator. 31. [18-32.7.3, 18-4.12.2(c), and 18-4.12.81: Sheet C1 indicates that the proposed uses require a minimum of 81 total parking spaces, but further indicates that the total number of parking spaces provided is 76. This discrepancy between required and provided parking spaces is not permissible unless a written request for parking alternatives is submitted pursuant to County Code § 18-4.12.8 and is reviewed and approved (as may be appropriate) by the Zoning Administrator. ADDITIONAL REVIEW COMMENTS APPLICABLE TO PROPOSED DEVELOPMENT: 32. [18-32.5.2(i), 14-233, 14-234, and 14-2351: This plan proposes private streets that would serve single family detached units and single family attached units. While streets (public or private) are not reviewed or approved with site plan applications, it should be noted that a private street authorization request must be submitted with any subdivision plat application for this project. Therefore, please submit the required private street request pursuant to County Code §§ 14-233-A and 14- 234, inclusive of the required justification, for review and approval (as may be applicable) by the Planning Commission in conjunction with staff review of the pending subdivision application. Additionally, per County Code § 14-235, a maintenance agreement for the private street must be submitted for review and approval by the County Attorney's Office with the subdivision application. 33. [14-401, 14-419, and 14-203.11: Proposed lots 9A — 16A are double -frontage lots, which are not permissible unless a special exception is formally requested and approved (as may be appropriate) pursuant to County Code § 14.203.1. Additionally, if double -frontage lots are approved by special exception, County Code § 14-419 requires such lots to be screened as provided in County Code § 18- 32.7.9.7. Those screening requirements may be varied or excepted as provided in County Code § 14-203.1. Please submit an application for any such special exception request with required information and justification in conjunction with a pending application for a corresponding plat. 34. [18-32.7.2.2(a), 14-410, 14-412, 14-234(D), and 18-2.51: It appears that the proposed "Road B," "Road C," and "Road D" do not meet all applicable private street standards, and would only be permissible with County Engineer approval. While streets (public or private) are not reviewed or approved with site plan applications, it should be noted that any desired private street standards waiver requests must be submitted with the subdivision plat application for this project. Therefore, please submit any such private street standards waiver request(s) pursuant to County Code §§ 14-234(D) and 18-2.5 for review in conjunction with the pending subdivision plat application. Please ensure all such waiver requests identify each applicable County Code provision for which a waiver is being requested, the proposed alternative, and corresponding justification for review and approval (as may be applicable) by the County Engineer. 35. [18-32.6.2(a),18-32.5.2(1), and 18-32.5.2(o)] Prior to final site plan approval, it is necessary to obtain County approval of a plat showing all proposed easements (such as utility easements, stormwater management facility easements, and public use recreation easements) as well as all areas intended for dedication to the County for public use. The platting of easements and lands to be dedicated to the County for public use can be shown all together on one plat, or separately — however the applicant prefers. 36.[18-32.6.2(a), 18-32.5.2(a), 18-32.4.3.2(b), and County Code Chapter 141: It appears that proposed new residential lot lines are shown on the plan, but no subdivision plat application has been submitted. If division of the subject property is intended, please submit an application for a plat for review and approval (as may be appropriate) by an authorized Agent in the Community Development Department, as required by County Code § Chapter 14. A plat showing proposed new lots can be incorporated into the same plat application showing proposed easements and lands to be dedicated to the County for public use, or separately — however the applicant prefers. 37. [18-32.4.3.2 and 18-32.4.3.61: The County cannot approve Final Site Plan SDP201900067 unless and until all applicable SRC reviewers have confirmed that all of their respective review comments have been satisfactorily addressed and have each confirmed their tentative approval by indicating a review status of "No Objection." 38. Additionally, the following remaining (separate) applications and approvals are required prior to approval of Final Site Plan SDP201900067: a. [18-32.7.4.2 and 18-32.7.5.31: Easement Plat b. [18-32.7.2 and County Code Chapter 141: Road Plans c. [18-32.7.4.1 and County Code Chapter 171: Water Protection Ordinance Plan (Note: Staff acknowledge that Water Protection Ordinance Plan application AT0201900053 is under review.) SRC REVIEWERS: Albemarle County Engineering Services (Engineer) Contact: John Anderson, janderson2&albemarle.org Review Status: "Requested Changes" (12/6/19); see attached comments Albemarle County Information Services (E911) Contact: Andy Slack, aslack&albemarle.org Review Status: "Requested Changes" (11/8/19); see attached comments Albemarle County Building Inspections Contact: Michael Dellinger, mdellingergalbemarle.org Review Status: "Requested Changes" (11/7/19); see attached comments Albemarle County Department of Fire Rescue Contact: Shawn Maddox, smaddox(&albemarle.oriz Review Status: PENDING (as of 12/10/19); review comments will be forwarded upon receipt Albemarle County Service Authority Contact: Richard Nelson, rnelson@serviceauthority.org Review Status: PENDING (as of 12/10/19); review comments will be forwarded upon receipt Virginia Department of Transportation Contact: Adam Moore, adam.moore(&vdot.vir ig nia.gov Review Status: PENDING (as of 12/10/19); review comments will be forwarded upon receipt Please contact Tim Padalino at the Department of Community Development at (434)-296-5832 ext. 3088 or ttpadalino@albemarle.org for further information or assistance regarding Final Site Plan application SDP201900067 (or associated applications). COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Site Plan Review Project title: Ecovillage Charlottesville — Final Project file number: SDP2019-00067 Plan preparer: Shimp Engineering Justin M. Shimp; Keane Rucker Owner or rep.: Ecovillage Holdings Inc. Plan received date: 6 Nov 2019 Date of comments: 6 Dec 2019 Plan Coordinator: Tim Padalino Reviewer: John Anderson SDP2019-00067 1. Address WPO Plan review comments sent 12/4/19 (WP0201900053). WPO Plan approval is required prior to Final Site Plan (FSP) Approval. 2. If project is to be subdivided, SWM Facility, SWM Facility Access, and public /private drainage easements may be recorded with the subdivision plat, meaning, once WPO Plan is approved, SWM Facility Maintenance Agreement is recorded, VAR10 (DEQ) VPDES permit issued, and WPO Plan bonded, the project is eligible to receive a Grading Permit (eligible for pre -construction). Also: see items 28 and 45. 3. Submit Road Plan and Private Street Authorization request at earliest convenience. Engineering defers to Planning Division on Private Street request, yet is involved and reminds Applicant of code requirements at 14-234 if making private street authorization request. Engineering will support request, given density and comprehensive plan goals, and prior Ecovillage special use permit and initial site plan approvals (SP2018- 00016, SDP2018-00056, respectively), which reflect design consistent with planning goals. Nevertheless, private streets are subject to VDOT design standards /specifications, Albemarle County Design Standards Manual guidance, and Drainage and Road Plan Checklists for plan reviewers. Please submit Road Plan with Application, with minimum number of print copies (or digital road plan) as soon as possible. Roads must be built or bonded prior to Final Plat approval. Road plan must be approved prior to FSP approval. 4. FSP is subject to SP201800016 and SDP201800056 conditions /conditional approval requirements. Engineering defers to Planning concerning interpretation or effect of these approval documents. Cl 5. Slopes Note: Provide LS name /date that 9,866 SF of preserved slopes overlay was surveyed less than 15%. 6. Provide related plan references: SP201800016, SDP201800056, WP0201900053, SUB2019-XXXXX (Road Plan). 7. Provide description of any steep slopes waiver granted, with reference to legislative action. Provide details of waiver or exemption to disturb steep slopes. 8. Provide copies of detailed PE -sealed geotechnical retaining wall designs for wall ht. > 4' max. associated with parking or any road /travelway prior to FSP approval. See Final Site Plan checklist for plan reviewers, p. 1. Also Retaining Wall Plan checklist; Attached. C2 9. Show /label preserved steep slopes on TMP #61-21013. Applies to additional sheets; C17, for example. 10. Label stream buffer (TMP #61-210B). C3 11. Label typ. parking stall depth and width, all parking areas. For perpendicular radial (curvilinear) parking, label stall width `at narrowest point along the length of the space.' (18-4.12.16.c.4.) 12. Label HC-parking space width (2 separate locations). 13. Revise Road A 32 ' Private to clarify that paved surface is 20', not 32'. Engineering Review Comments Page 2 of 4 14. Similarly, revise Road B, C, D, 30' Private to clarify width of geocell pavers (vs. 30' easement width). 15. At relevant points along Road D, label radii. (See Roads B, C.) 16. Provide VDOT GR-2 guardrail on south side of lower parking lot for any parking space fronting retaining wall, or space facing a grade of -3:1, or steeper. 17. Label 10' Multi -use pedestrian trail. 18. Label 14' Emergency Fire Access. 19. Provide CG-6 (curb with gutter) to match VDOT Road Design Manual typ. CG section in urban setting, not CG-2. Provide CG-6 for Road A between Rio Rd. E entrance and the 4 perpendicular parking spaces just north of the 2 HC- parking spaces on west side of Road A, thru R5' radius return. CG-2 does not meet VDOT standard for urban design; please revise to VDOT standard. Also, 18-4.12.15.g. 20. Provide CG-6, continuous from point identified in item 19., through last curvilinear parking space (End of Road A). 21. Provide CG-6, not CG-2, in all parking areas. Ref. 18-4.12.15 a. No exception appears to exist under Resolution adopted May 1, 2019 (SP201800016), or special permit condition 3., which reads (in part): `Improvements related to stormwater, drainage, and grading shown on the final site plan and water protection ordinance plan for Ecovillage Charlottesville shall be in general accord with the same improvements and grading shown on the "Stormwater Improvements" exhibit and "Proposed Entrance Layout" exhibit prepared for SP201800016 by Shimp Engineering, P.C. and dated 2/4/2019 and subsequently revised 2/27/2019, inclusive of additional modifications as noted in a. — c. below, and to the satisfaction of the County Engineer.' CG-6 is required to meet ordinance design requirements for parking, and VDOT typ. section for subdivision roads. 22. Recommend Site Summary include Ref. to WP0201900053 1.26 Ac. Forest /Open Space Easement. 23. Label 12' and 14' turnaround W (narrowest) and L dimensions, to clarify, and avoid misunderstanding. 24. Ensue SU design vehicle has adequate room to maneuver at proposed 12' and 14' turnarounds, including without striking screening enclosure at trash tote storage adjacent to 12' turnaround. [Ref. VDOT Road Design Manual, Appendix B 1, Fig. 2-2] 1. A single -unit (SLI) truck design vehicle, as defined by AASHTO, should be used for the design of all local subdivision streets. Dimensions for this vehicle are depicted in Figure 2-2 of the AASHTO Geometric Design of Highways and Streets 2011, shown as Figure 1. 0j �!A t0A p1M 'F6m • cor FIGURE 1 - "FIGURE 2-2" SCANNED FROM "A POLICY ON GEOMETRIC DESIGN OF HIGHWAYS AND STREETS," AASHTO, 2011 25. Provide sight distance line to ensure 100' min., unobstructed stopping sight distance through curvilinear section with perpendicular parking, Road A. 26. Label all easement linework. 27. Label all drainage easements downstream of any SWM facility (incl 38 raingardens) as public drainage easements. Also, reference /address WP0201900053 12/4/19 Engineering review comments. 28. Provide deed bk.-pg. reference to recorded (off -site) sight -distance easement (right), 390' for 35 MPH, across TMP# 61-190. Ref. Ecovillage Proposed Entrance Layout, SE Engineering, 02-27-2019. This easement is required prior to Final Site Plan approval. There is no safe safe no from development unless this sight -distance easement is obtained /recorded. Show /label sight distance easement on C3. Engineering Review Comments Page 3 of 4 ECOVILLAGE: PROPOSED ENTRANCE LAYOUT oa-aiaoie 29. C3/C4: Identify multi -use pedestrian trail material, either in legend, on plan, or both. Provide typ. detail. 30. C3/C4: Show northern -most extent of 14' Emergency Fire Access (Secondary Exit) point of connection with: Rio Road, Ex. paths /sidewalks, etc. Any work within VDOT R/W Rio Road E, requires land use permit, and VDOT approval. 31. Note: Road Plan should provide profile of 14' Emergency Fire Access for comparison with fire apparatus ground clearance requirements. C5 32. With CG-6, ensure no nuisance ponding. Provide spot elevations as needed to ensure positive drainage. 33. Revise 8% grade < 5% where Road A serves perpendicular parking spaces. (18-4.12.15.c.) 34. Revise 6% grade < 5% where Road A serves perpendicular HC-parking spaces. (18-4.12.15.c.) 35. Road Plan approval requires 70' CL radius (20 MPH design speed) 4% super -elevation, but proposed grade reverses required super -elevation, causing inadequate side friction through the 70' R curve. Revise per Exhibit 5, AASHTO Guidelines for Geometric Design of Very Low -Volume Local Roads (ADT < 400). AASHTO�Guidelines for Geometric Design of Eery Low -Volume Local Roads (ADT 5400) Metric Reduced Maximum Minimum radius (m), R,„,,, Design design design side speed speed friction Max. superelevation rate (%), a,,, (kmth) (km/h) factor, fa: 4 6 8 10 12 20 20 0.180 15 15 10 10 10 30 25 0.170 25 20 20 20 20 40 30 0.170 35 30 30 25 25 50 35 0,170 45 40 40 35 35 60 45 0.165 80 70 65 60 55 70 50 0.160 100 90 80 75 70 80 60 0.150 150 135 125 115 105 90 70 0.140 215 195 175 160 150 100 80 0-140 280 250 230 210 195 US Customary Reduced Maximum Minimum radius (ft), R_ Design design design side speed speed friction Max. superelevation rate %, era, (mph) (mph) factor, fax 4 6 8 10 12 15 15 0.175 70 65 60 55 50 20 15 0.175 70 65 60 55 50 25 20 0,110 125 115 105 100 90 30 20 0.170 125 115 105 100 90 35 25 0.165 205 185 170 155 145 40 30 0A 60 300 275 250 230 215 45 35 0.155 420 380 350 320 295 50 40 0.150 560 510 465 425 395 55 45 0.140 750 675 615 565 515 60 50 0.140 925 835 760 695 640 Exhibit 5. Guidelines for Maximum Side Friction Factor and Minimum Radius (New Construction, ADT <250 veh/day, Limited Heavy Vehicle Traffic) 36. Provide inlet capture along inside of Road A revised 70' R curve (w CG-6). C6 Engineering Review Comments Page 4 of 4 37. Relocate SWM Facility access (MH) from parking space to parking lot access aisle, to permit access. 38. With CG-6, revise depiction of VDOT-typ. inlets. Integrate inlets with CG-6 as opposed to cut /fill section. 39. Label StormTech Bayfilter SWM Facility Easement width. Compare with ACDSM diagram /equation, p. 15; image, below (Ensure Min. width for proposed SWM Facility — provide calc. /show equation): Albemarle County Design Standards Manual — Engineering 0 EA5E51E,NTnNT1T. I1LOU ER- Miff-S;•WiNMES,i EASEIM Tq' 1I.- Enl]P�IE:T c. Drainage easements are to be labeled on plans and plats; "Drainage Easement" and "dedicated to public use". d. Drainage easement plats must be accompanied by a deed. Standard deeds are provided by the Count Attorney, along with administrative guidelines. These are also available in the documents forms center of the county website; btV-//www.albemarle.orp,/detforms.M?department--cdengyMo. 40. C6/C7: Revise storm inlet /pipe design consistent with WPO201900053 Engineering review comments. 41. C8: Relocate plantings to resolve conflicts with proposed SWM Facility or public drainage easements, including 38 individual raingardens (easements not currently shown). As a general rule, do not locate plant center -points within 2' of an easement for storm pipe, or SWM facility, since plants are not points, but develop central stems /trunks, and extensive root systems. Tree protection typically requires canopy to be located outside limits of disturbance. In this case, a better design is to ensure mid- to large -caliper species canopies lie outside public drainage easements. Once SWM facility easements are shown, Engineering anticipates revision to plant locations. At least 3 large shade trees are shown inside raingardens; at least 3 large shade trees touch raingardens. All six, and perhaps others, must be relocated for raingardens to function, or be maintained, or for FSP /WPO plan approval. 42. CI51C16: Revise storm sewer profiles consistent with WP0201900053 12/4/19 Engineering review comments. C16 43. Revise easement across TMP #61-210B to New 20' Public Drainage Esmt. An easement downstream of a SWM facility is public. Albemarle requires access for future inspection /possible maintenance. 44. Please check (TMP #61-21013) Parcel A-1-A label; this appears inconsistent with GIS /Real Estate records. 45. C 17: Provide copy of recorded on -site sight -distance easement, left. Sight -distance easements (left /right) are prerequisite to FSP approval. 46. Sign /date C 1 of FSP. There is instance of recorded Shimp Engineering Site Plan with unsigned /undated C1 PE -seal, marked review only. Albemarle will (try to) avoid this in the future. (Ref SDP2018-00039) 47. Revise per 18-Sep 2018 Engineering ISP review comment 10, image, below: 10. Slopes steeper than 3:1 must specify a plant type or grass on the landscape plan that can withstand the steep slope. 48. Provide geocell paver detail. Please feel free to call if any questions. Thank you J. Anderson 434.296-5832 -x3069 SDP201900067 Ecovilla-c FSP 120619 Review Comments for SDP201900067 lFinal Site Development Plan Project Name: ECO VILLAGE CHARLOTTEVILLE - FINAL - DIGITAL Date Completed: Friday, November 08, 201 DepartmentlaivisionlAgency: Review Sys: Reviewer: Andrew flack � CDD I Requested Changes The applicant should contact this office with a list of three (3) proposed road names for 'Road A', 'Road B', 'Road 0, and 'Road D' before this application can be approved_ Page: County of Albemarle Printed On: 1 25120'19 Review Comments for SDP201900067 lFinal Site Development Plan Project Name: ECO VILLAGE CHARLOTTEVILLE - FINAL - DIGITAL Date Completed: Thursday, November 07, 201 DepartmentlaivisionlAgency: Review Sys: Reviewer: Michael Dellinger CDD Inspections Requested Changes Nd Add the following note to the general notes page: Building or structures built before January 1, 1985 must have an asbestos survey performed in order to apply for a permit_ Asbestos removal permits are required if positive for such_ Contact VDOLI for additional requirements and permits for demolition projects_ Add the following note to the general notes page: Retaining walls greater than 3 feet in height require a separate building permit_ Walls exceeding 4 feet in height require a stamped engineered design also_ Walls require inspections as outlined in the UBC_ Add the following note to the general notes page: Accessible parking spaces and access isles shall not have a surface slope greater than 1:48 Access isles shall be at the same level as the parking space they serve_ Provide cutsheet of accessible parking space and required signage_ Add the following note to the general notes page: ALL water lines, sewer lines, and fire lines from the main to the structure MUST have a visual inspection performed by the building department_ Note to developer: Due to required distances from lot lines and structures as required by the NFPA, underground propane tanks may be prohibited_ Plan accordingly_ May want conisder a jurisdictional system for LP gas if desired_ A Page: County of Albemarle Printed On: 1 25120'19