HomeMy WebLinkAboutSUB200800093 Review Comments Preliminary Plat 2008-05-14ALg�,��
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COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: SUB - 2008 - 00093, Glenmore Phase 2, Section S -5, Preliminary Plat
Plan preparer: Mr. Nathan Morris, Roudabush, Gale & Associates, Inc.
nmorris@roudabush.com
Owner or rep.: Mr. Michael Barnes, KG Associates mbames @thekesslergroup.com
Date received: 24 March 2008 (plat date 21 March 2008)
Rev 1: 28 April 2008
Date of Comment: 15 April 2008
Rev 1: 14 May 2008
Engineer: Amy Pflaum, Current Development Engineer apflaum @albemarle.org
The revised preliminary plat for Glenmore Phase 11, Section S -5, received on April 28, 2008, has been
reviewed. The engineering review for current development recommends approval of the preliminary plat.
1. Please match the title of the Subdivision Plat on the title sheet ( GLENMORE PHASE 2, SECTION S-
5) to the title in the title block of the border on each sheet ( GLENMORE SECTION S -5) [14- 302A1]
Rev 1: Comment addressed 4128108.
2. Please label the other phases of Glenmore on the Vicinity Map on Sheet 1. [14- 302A2]
Rev 1: Comment addressed 4128108.
On the Sheet 1, Note 2.a under DEVELOPMENT STANDARDS FOR THE GLENMORE PRD
states that "lots shall only front on and have direct access onto Piper Way and Paddington Drive ". No
such streets are labeled in this plat. Please correctly label the subdivision streets or correct the note.
Rev 1: Comment addressed 4128108.
4. On the Sheet 1, Note 3 under DEVELOPMENT STANDARDS FOR THE GLENMORE PRD states
that "Open space linkages shall be at least thirty (30) feet wide." Is the OPEN SPACE labeled
between lots 29 and 30, as well as along the backs of lots 33 -42 considered a "linkage "? If so, should
it match this standard?
Rev 1: Comment addressed 4128108.
5. The 20' SANITARY SEWER EASEMENT RESERVED FOR FUTURE EXTENSION shown
beyond the back of lots 10 -14 on Sheet 6 may need to be relocated farther away from the
INTERMITTENT STREAM. Should an analysis of this stream be done in the future which
determines the stream is perennial, a 100' buffer will be placed on it and disturbance for future
development will not be allowed per the County's Water Protection Ordinance. It appears that a
reasonable alternative for this proposed alignment would be to shift the easement farther up the hill.
Rev 1: Comment addressed 4128108 by moving proposed sewer line slightly up the bank.
6. Regarding the disturbance of the Carroll Creek stream buffer at the bottom of Sheet 5, it appears the
proposed sanitary sewer could reasonably be realigned to avoid this disturbance. From the outfall of
proposed SS -MH -2, the sewer line could run southwesterly into the existing 20' A.C.S.A. Easement
(D.B. 2422 p. 469 -485) just outside of the buffer, and then continue southeasterly within the existing
easement and buffer to meet the existing sewer. This new alignment would add one manhole to the
Albemarle County Community Development
Engineering Review Comments
Sheet 2 of 2
current configuration. The stream buffer has already been disturbed for the existing easement, it seems
unnecessary to disturb it again in such close proximity.
Rev 1: Comment addressed 4128108.
7. A stub -out is shown on proposed SS -MH -1, is a future connection expected in this area?
Rev 1: Comment addressed 4128108, future connection to Rivanna Village expected.
8. Please include a date of survey with the SOURCE OF TOPO information on Sheet 1. [14- 302Al2]
Rev 1: Comment addressed 4128108.
9. The centerline of the Alley intersection with Ferndown Lane is only forty (40) feet away from the
centerline of the intersection of Road `A' with Ferndown Lane. VDOT standard intersection spacing
for a shoulder and ditch section street with a 20 mph design speed is 200 feet. Traffic will be minimal
on these roads with this phase of Glenmore, however, a future connection is being provided at the end
of Ferndown Lane. Exploring a safer alignment for these intersections is recommended.
Rev 1: Comment addressed 4128108 with relocation of alley connection.
10. Regarding the Pavement Design Worksheet submitted for Ferndown Lane: The design ADT used is
350, this is calculated using the lots in the Glenmore Phase 2, Section S -5 development, but it does not
account for trips generated when Ferndown is extended into future development as stated. If the traffic
count increases in the future, a greater pavement thickness may be required at that time.
Rev 1: Comment noted 4128108.
11. Drainage easements from neighboring property owners must be granted prior to approval of the
subdivision plat. Please show and label these easements on the plat. [14- 302A5]
Portions of lots 15 -29 sheet flow to an existing drainage swale that runs along the property boundary.
Rev 1: Concentrated flow is no longer proposed to be discharged into the existing drainage Swale
along the property boundary with TMP 80 -47, therefore, and easement is not required. The northern
portion of Ferndown Lane and the rear of lots 15 -19 will sheet flow to this existing swale. Please note
that the WPO application for this project will need to verify that the existing Swale can handle the
proposed runoff generated by the additional impervious surfaces.
12. Code 17 -315 -A of the Water Protection Ordinance provides that "Best management practices shall be
designed and sited to capture runoff from the entire land development project area and, in particular,
areas of impervious cover within the land development, to the maximum extent practicable".
Stormwater runoff from portions of Ferndown Lane and Road `A' and the dwellings and site
improvements for Lots 11 - 19 will not be captured by a proposed stormwater management facility.
Additional stormwater measures could be proposed behind Lot 14 to address water quantity and
quality.
Rev 1: Comment addressed 4128108 by addition of conceptual water quality bio filter in this area.
File: E2—ADP—Glenmore Phase 2 Section S -5