HomeMy WebLinkAboutSUB201400111 Approval - County Preliminary Plat 2015-01-07LjRGiNL�
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, North Wing
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
January 7, 2015
Scott Collins
Collins Engineering
200 Garrett St., Suite K
Charlottesville, VA 22902
RE: SUB201400111 Wintergreen Farm - Preliminary Plat
Mr. Collins:
The Agent for the Board of Supervisors hereby grants administrative approval to the above referenced
subdivision plat.
This approval shall be valid for a period of five (5) years from the date of this letter, provided that the
developer submits a final subdivision plat for all or a portion of the site within one (1) year after the date
of this letter as provided in 14 -226 of the Subdivision Ordinance of the County Code, and thereafter
diligently pursues approval of the final subdivision plat.
The final subdivision plat will not be considered to have been officially submitted until the following
items are received:
1. A final subdivision plat that satisfies all of the requirements of 14 -226 of the Subdivision
Ordinance.
2. A fee of $1,230.
Please submit eight (8) copies of the subdivision plat to the Community Development Department. The
assigned Lead Reviewer will then distribute the plans to all reviewing agencies. Once you receive the
first set of comments on the final subdivision plat, please work with each reviewer individually to
satisfy their requirements.
The final subdivision plat will not be approved until the following conditions are met:
The Department of Community Development shall not accept submittal of the final subdivision plat for
signature until tentative approvals for the following conditions have been obtained:
Planning Division Approval of (2 copies):
1. A plat meeting all the requirements for final subdivision plats per the subdivision ordinance.
2. [14.401] Double frontage lots. Show width of open space between Redfields Road and Lots
42 -43 and 57 -58. Open space width must be at least 20 feet. Open space between the lots
and the rear street needs to be at least 20' wide to not be considered double frontage.
3. [4.2.6] Critical Slopes. Public utility and other public facilities necessary to allow use of the
parcel can be located within critical slopes and stream buffers, provided that the applicant
demonstrates that no reasonable alternative location or alignment exists. Several utility
lines cross through areas of critical slopes and the stream buffer where it looks like it could
be realigned to avoid the slopes and most of the stream buffer. Either demonstrate that this
alignment is necessary or relocate the sewer line to avoid the stream buffer and slopes
where possible.
4. [14 -410] Standards for alleys and streets - Layout. Each street shall be configured, to the
extent practicable, to provide vehicular and pedestrian interconnections within the
subdivision. Attempt to provide interconnections between subdivision streets where
possible.
5. [14 -308] Floodplain and topographic information. Submit information to demonstrate that
damage from flooding will be minimized with final plat as required by this section.
6. [14 -317] Instrument evidencing maintenance of certain improvements. Submit with the final
plat an instrument assuring the perpetual maintenance of street trees, open space and any
other improvements that are to be maintained in perpetuity.
7. [14.401] Proposed facilities. Show the locations of proposed on street parking. Parking
calculations will need to be provided on final plat.
8. [14 -311] Infrastructure improvement plans. Road Plans and WPO application must be
approved, all required improvements must be built or bonded, and all required Deeds and
Declarations must be reviewed and approved prior to Final Plat approval.
9. [18- 13.4.1] Bonus factors for Environmental Standards. Bonus factors shall not be permitted
for any improvement or design feature already required by the ordinance. Tree preservatior
of Flood Plain within the rural areas portion of the development is a required feature and
therefore cannot be counted toward bonus density area. Show tree preservation bonus
calculations that do not include any areas within the rural area flood plain.
10. [18- 13.4.1] Bonus factors for Environmental Standards. With final plat, provide an exhibit
which shows that all tree preservation areas meet the definition of a wooded area from
Section 3.1 of the zoning ordinance.
Please contact Rachel Falkenstein at 296 -5832 if you have questions or require additional information.
Engineering Division Approval of U copy of final plat) WPO and road plans to be submitted
separately):
SUB201400094 — Preliminary Plat
(A plat is a record of property division or reservation. Code Chapter 14)
Sheet 1 of 6
The exterior property boundaries are drawn /shown differently on the resubmittal than on the
initial submittal (plat errors ?). Please explain unusually high number of boundary discrepancies
between initial and this preliminary plat.
Sheet 2 of 6
2. Delineate stream buffer impacts due to: construction access, including temp stream crossing
required to construct SWM Facility #3.
3. Double the number of contour labels. Add labels W of Hallam St and around Bleeker St.
Sheet 3 of 6
4. Double the number of contour labels. Add labels S -E -W of Galena St, N of Pfister Ave, and W of
Cooper Ct.
Sheet 4 of 6
5. Delineate stream buffer impacts due to: construction access, including temp stream crossing
required to construct SWM Facility #3.
Sheet 5 of 6
6. Provide double the number of contour labels. Add labels E of Pfister Ave, around Maroon Creek
Ct, and increase pitch of labels (so readable).
7. VaRRM spreadsheet shows total capture of impervious and turf areas within drainages A, B, and
C. This is not possible. Areas E of Bleeker St drain east (uncollected —see #26 below). With final
plat, please correct - revise spreadsheet values. It is essential to base SWM concept on accurate
design parameters.
8. Furnish Mitigation Plant schedule. Also, note effect of increased stream buffer impact due to
SWM Facility'C' access.
9. Note that DA 'C' should be subdivided —it is not a single drainage. Also, runoff E of Ridgetop Dr
will not reach SWM Facility B. Areas S of Hallam St /Maroon Creek Ct will not reach SWM Facility
C. Urge caution with final plat.
10. Label streets.
11. Note, sheet 1, N end Hallam Street: "R /W extended to P/L for possible future connections." R/W
alone does not meet requirement for internal road coordination and extension — §18-
32.7.2.2.d./e. Hallam St should be built to the property line. Existing Redfields Rd lies 35'( ±)
beyond P/L at this point.
With Final Plat
1. Furnish stormwater management removal rate computations and project drainage area maps
"to support conceptual stormwater management plans" ( §14 -305). Use VDEQ New
Development Runoff Reduction spreadsheet —ref. 9VAC25- 870 - 63/92: http://lis.virginia.gov /cgi-
bin /legp604.exe ?000 +reg +9VAC25- 870 -63; link to.xls:
http: / /www.deq.virginia.gov/ Programs / Water/ StormwaterManagement /VSMPPermits /Constru
ctionGeneraI Perm it.aspx. Stormwater Management Narrative, sheet 5, may underestimate
water quality criteria. For example, using New Development spreadsheet and treating entire
development as a single drainage area, if assume: 50% B soil, 50% C soil [C /D soils predominate];
2 Ac. turf and 5.30 Ac. impervious area (All roads /sidewalks, 5.61 Ac., less 0.32 Ac. Bleeker St.
not collected) routed to a bioretention #2 SWM facility (Spec #9) with total treatment volume =
69,163 cf, then Spec #9 bioretention provides 11.18 Ib /yr phosphorus reduction, with 1.41 Ib /yr
remaining reduction required. Note, sheet 5, references minimal impacts.
2. Furnish soil type /soil boundary information needed to evaluate runoff reductions spreadsheet.
3. Revise drainage divides to reflect proposed grades on final plat, sheet 5.
4. §14- 308.A. /B. /C. /D. — Incorporate plan design guidance relating to floodplains.
5. §14 -303.L —With final plat, furnish location and dimensions of each public utility, drainage, and
sight distance easement outside of a street right -of -way.
6. §14- 303.E. — Furnish dimension information and standards on all streets and easements.
7. Show inlets and pipes; furnish computations and plan /profile for roadway improvements,
Sunset Ave. Ext.
8. §144 -303.K —With final plat, vacate /abandon portion of existing Hatcher Ct. (cul -de -sac) that lies
outside typical street section, 54' public road RW. Also: 18- 32.7.2.2.a.— Minimum design, public
streets.
9. Inlet spread /capacity computations may indicate need for additional inlets: Cooper Ave, for
example (500', including 10% grade, without inlets); at intersection Hallam St /Cooper Ave, at
intersection of Hallam St. /Maroon Creek Rd (sag location), and Bleeker St. (no inlets).
10. Final plat approval requires roads and all necessary infrastructure (ACSA sewer, trails, swm) be
built or bonded.
11. Final plat approval requires Approved VSMP: SWPPP: ESC /SWM /PPP plan (including DEQ
permits issuance).
12. Final plat approval requires Approved stream buffer Mitigation plan.
13. Final plat approval requires recorded Stormwater Management Maintenance Agreements.
Please contact John Anderson at 296 -5832 if you have questions or require additional information.
ACSA approval to include (1 copy to County, 3 copies to ACSA):
The applicant should submit 3 copies of construction drawings along with water and sewer data sheets
to the ACSA (Attn: Jeremy Lynn, PE). The ACSA has determined certain items that will be evaluated
during the construction review that the applicant should be aware of:
1. During the utility design stage the ACSA will investigate a sewer connection with Redfields to
eliminate the Redfields wastewater pump station.
2. During the utility design stage the ACSA will review the 2 pressure bands that will be present
within the subdivision with the proposed watermain connections (Urban Ring and Mosby
Mountain pressure bands).
3. Proposed water main connections to RWSA infrastructure require RWSA approval. The ACSA will
request initial approval when the initial site plan is submitted for review.
Please contact Alex Morrison at 977 -4511 ext 116 if you have questions or require additional
information.
RWSA approval to include (1 copy):
1. Label RWSA waterline as "Existing 20" RWSA Waterline"
2. Label RWSA water line easements with deed book and page numbers.
3. Show existing fire hydrants on the RWSA 20" waterline as shown in the attached GIS map (note
that locations of utilities are approximate and will have to be field- verified).
4. Future site plan /construction plan submissions should include the following notes:
"Contractor shall coordinate with RWSA and ACSA during construction of the connection to the
existing RWSA 20" waterline. Contractor shall use due diligence to protect the RWSA 20"
waterline during construction and tapping.
Contractor shall verify the horizontal and vertical location, the outside diameter and the pipe
material of the 20" waterline prior to ordering the tapping sleeve. RWSA shall be contacted 3
business days in advance of the test pit and shall be present during the test pit. The tapping
sleeve shall be approved by RWSA prior to being ordered. The tapping contractor shall be
approved by RWSA prior to the tap.
A minimum of 3 business days' notice shall be given prior to installation of the tapping sleeve.
The 20 "x8" tapping sleeve and valve shall be installed plumb. Following the placement of the
20 "x8" tapping sleeve, a concrete pad and thrust block shall be placed under and behind the
tapping sleeve.
Please contact Victoria Fort at 434 - 977 -2970 ext. 205 if you have questions or require additional
information.
Fire /Rescue approval to include (1 copy):
1. Fire Flow test required before final approval
2. Cul -da -sac's shall be 96 ft FC /FC
3. Streets that are 29 ft FC /FC or smaller need to be marked on one side No Parking Fire Lane.
Please contact Robbie Gilmer at 434 - 296 -5833 if you have questions or require additional information.
4
E911 approval to include (1 copy):
1. The applicant will need to contact this office with a list of three (3) potential replacement names
for 'Cooper Avenue'. That road name is not valid. The road name of 'Pfister Drive' should also
be changed to 'Ridgetop Drive' because it is not more than fifty feet from the existing road
name.
Please contact Andrew Slack at 296 -5832 if you have questions or require additional information.
VDOT approval to include (1 copy):
1. Include note to indicate that Sunset Avenue Ext. will be designed to GS -4 standards.
Please contact Troy Austin at 422 -9373 if you have questions or require additional information.
If you have any questions about these conditions or the submittal requirements please feel free to
contact me at extension 3272, rfalkenstein @albemarle.org.
Sincerely,
" W��D
Rachel Falkenstein, AICP
Senior Planner