HomeMy WebLinkAboutSDP202000030 Correspondence 2020-03-23 (3)sfs��
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TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
March 23, 2020
John Anderson
c/o Paty Saternye
Senior Planner
Albemarle County Community Development
401 McIntire Rd
Charlottesville, VA 22902
608 Preston Avenue P 434.295.5624
Suite 200 F 434.295.8317
Charlottesville, VA 22903 www.timmons.com
RE: Chattanooga — Medical Office Building — Initial Site Plan Review — SDP201900042 -
Comment Response Letter
Dear Mr. Anderson:
We have reviewed all of your comments from August 8, 2019 and made the necessary
revisions. Please find our responses to the comments below in bold lettering.
General:
1. Provide field run surveyed topographic data as basis of Final Site Plan (FSP) design.
A field run survey has replaced the previous GIS used.
2. Source of topographic data is listed as county GIS, but topographic information is
inconsistent with GIS. Note especially the centerline of drainage feature, shown off -site
on ISP, but on -site in GIS. ISP should be re -submitted with either field run survey, or
topographic information consistent with GIS, if GIS is used as basis of Initial Site Plan
design.
A field Run survey has been added to replace the previously used GIS.
3. GIS topographic features indicate a drainage feature and show blue stream line that
may be a perennial stream. Provide confirmation that drainage is either intermittent or
ephemeral, and not a perennial stream. If feature is perennial, establish and show
stream buffer on FSP, and revise proposed development design consistent with Ch. 17,
Article VI, Stream Buffers.
Per the survey the stream is not on the parcels to be developed.
4. An approved VSMP Plan is pre -requisite to FSP approval. From Engineering perspective,
conceptual design shown on C6.0 is sufficient for ISP approval. With VSMP, please
include plan note and analysis that consider Colonnade Drive runoff which appears to
CIVIL ENGINEERING I ENVIRONMENTAL I SURVEYING I GIS I LANDSCAPE ARCHITECTURE I CONSTRUCTION SERVICES
bypass the site in pre -development condition but appears partially routed to detention
(via relocated DI) in the post -development condition. Engineering does not object to
relocating DI, but requests FSP confirm effect: non -capture (pre-) vs. capture (post-).
Note: with VSMP plan, provide complete calculations, including RV calculations, Energy
Balance Eq.
Routing calculations and SWM plan have been updated to show the offsite water which is
routed through the underground pipe system. Since this water is offsite and not from the
disturbed area the energy balance is not required to be applied to is so it has been added to
each side of the energy balance equation.
5. SWM Facility/Access easement with deed must be recorded prior to FSP approval.
Comment Acknowledged
6. Recommend title sheet note that parcel lies within ACSA service area for water and
sewer.
Title sheet Notes has been updated to indicated that the project is located in the ACSA service
area for water and sewer.
7. Ensure project has all relevant state/federal permits, including Army Corps of Engineers
permit for any stream or wetland impacts.
No wetlands or streams are located in the disturbed area and therefore no permits for
impacts are required.
8. Identify existing wetlands, if any (FSP).
No wetlands are present in the disturbed area.
9. With FSP, identify area or length of any wetland or stream impacts.
No streams are located in the disturbed area.
10. Provide detailed retaining wall design prior to FSP approval/ref. attached Retaining Wall
Plan checklist.
The intent is to provide retaining wall design for building permits. The layout has been
adjusted to keep the retaining walls 6' max height 10' or more from property lines.
11. With FSP, provide comprehensive drainage design. Revise to include plan/profile
drainage data, tables, elevations, inlet/storm pipe design, etc. and provide inlet capture
for hardscape areas to prevent ponding. Please see Drainage Plan review checklist
(attached/also, county website).
A full comprehensive drainage plan has been provided and submitted as a new WPO Plan
submission
12. C1.2: Include VDOT ST-1, IS-1 details (MH steps/inlet shaping).
VDOT ST-1 and IS-1 one details have been added to sheet C1.2.
C4.0:
13. Recommend label typical length of parking space/s (TYP.=18.0').
Typical length for parking spaces has been added where necessary.,
14. Provide off -site temporary construction/grading easement for retaining wall
construction. Lowest tier wall is approximately 6.0' away from the nearest property line.
The layout has been adjusted to keep the retaining walls 6' max height 10' or more from
property lines.
15. C5.0: It is Engineering understanding that no grading is allowed within the 20' landscape
buffer located parallel to south property line. Revise grading per landscape buffer
requirements.
Grading has been revised to avoid disturbance in 20' landscape buffer.
16. L1.0: Recommend review and revise if needed planting design to limit potential conflict
between tree canopy and dumpster lift operations, which may require 14' vertical
clearance above dumpster pad.
Trees have been shifted to avoid conflict with dumpster lift operations.
We have included PDF copies of the plans and calculations for your review. If you have any
questions or comments, please feel free to give me a call at 434.295.5624.
Sincerely,
Jonathan Showalter, PE
Project Manager