HomeMy WebLinkAboutWPO202100034 Correspondence 2023-01-10I® COLLINS ENGINEERING
January 9th, 2023
Emily Cox
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
RE: Victorian Heights (WPO 202100034)
200 GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902
(�434.293.3719 PH 434.293.2813 FX
www.collins-engineering.com
Thank you for your comments dated December 22nd, 2022 on the above referenced project. Below are our responses
to the remaining comments on the road plans.
A. Stormwater Pollution Prevention Plan
1. The approved amendment will be added to the SWPPP onsite, once approved.
B. Pollution Prevention Plan
1. Attached is the updated PPP for the project.
C. Stormwater Management Plan
1. The WPO title has been updated, as requested.
2. Additional spot shots have been added to the drains and to the wall elevations behind buildings 2 and
3. The drains are at an elevation below the wall (which also does not include the wall cap). There is
positive drainage from the wall back to the inlets along the wall to prevent the drainage from
overtopping the wall.
3. The managed slopes have been added back to the grading plan.
4. Yes, engineering wall have been submitted. The wall plans might be updated before final site plan,
and it is noted that this is a requirement of final site plan.
5. The manhole has been shifted out of the VDOT right of way, eliminating this issue. VDOT has
reviewed the drainage design for the project, and has approved it with the final site plan design.
6. RWSA and ACSA are comfortable with the propose design, especially since our drainage pipes are
crossing over the existing waterlines, and not underneath them. This is reflected in their recent
comments, which are attached to this letter. You can see that they have no issues with the drainage
pipes crossing the waterlines.
7. The updated calculations are included with the submission.
D. Erosion and Sediment Control Plan
1. The narrative has been updated to include the timing about the removal and installation of the
sediment traps and basins.
2. Outfall protection has been added at the diversion dikes and storm pipe outfalls, as requested.
Should you have any questions, please feel free to contact Scott Collins at scott@collins-engineering.com.
Sincerely, nn
Scott Collins, PE
Scott Collins
From: Dyon Vega <dvega@rivanna.org>
Sent: Wednesday, December 28, 2022 4:09 PM
To: Joe Simpson; Michelle Simpson; Alexander Morrison
Cc: Scott Kiser; Victoria Fort; Scott Collins; Richard Nelson; Development review
Subject: RE: Victorian Heights Retaining Wall Application B202203720RW
Alex and Scott,
RWSA has reviewed the Victorian Heights Final Site plan date 12/9/22 by Collins Engineering and has the following
comments.
Sheet3A:
1. RWSA easement not clearly shown or labelled on page.
Sheet 4:
1. The fence for the playground needs to have a gate big enough for RWSA vehicles and large excavators to fit
through or removable posts and fencing.
2. No posts for the fence can be drilled over any RWSA utility. Arrange fencing so that it straddles the waterline
and is clear on the plans or include a detail of the fence posts that will be used instead of a drilled post
3. Only one connection can be made for the tap on the RWSA 30' WL.
Sheet 5
4. Connection is shown on wrong waterline in this sheet, please refer to sheet 4.
Sheet 16
5. Trees in front of lots 1-4, lots 32-34, and along Berkmar drive are close to the waterline. We don't allow trees
within 20 of the waterline.
Thank you,
Dyon Vega
Civil Engineer
RIVANNA
-,
WATER & SEWERAUTHORITY
Rivanna Water & Sewer Authority
(434) 977-2970, Ext. 170
695 Moores Creek Lane
Charlottesville, VA 22902
www.rivanna.ore
Albemarle County
Service Auth♦rity
Serving6Con%Tving
December 21, 2022
Collins Engineering
Attn: Mr. Scott Collins, P.E.
200 Garrett Street, Suite K
Charlottesville, Virginia 22902
Re: Victorian Heights - Final Site Plan
Dear Mr. Collins:
We have reviewed the plans entitled "Victorian Heights - Final Site Plan,"
dated December 9, 2022. The following comments need to be addressed.
General
1. Provide water/sewer data sheets.
2. RWSA approval for water connection and proposed site development
required prior to ACSA approval.
3. Recorded offsite sewer deed of easement and plat required prior to utility
plan approval.
4. Update sewer easement widths to reflect updated ACSA specs for
easement requirements.
5. Water pressures may be low.
Sheet 2
1. Add a note to have the existing FHA along Berkmar adjusted to final
grade.
Sheet 4
1. Relocate meters out of driveway typ.
2. Relocate existing 2-inch service line and water meter outside of parallel
parking along Woodburn. This service line serves the neighboring
parcels. Care should be taken to ensure their service is not interrupted.
3. Have double tap meters shown in wider portions of strips between
driveways.
4. Relocate proposed FHA to the corner of Lot 28.
5. Relocate Lot 28 water meter to portion of water main going to FHA.
6. Relocate blow -off assembly away from retaining wall.
7. Show separate water service and fire line connections for Buildings 1 and
2.
8. Lot 19 sewer lateral should enter at 90-degrees or greater.
9. Have Lot 18 lateral enter sewer main, after casing pipe.
10. Refer to red line drawing for manhole S9A location and water main
alignment.
168 Spotnap Road - Charlottesville, VA 22911 - Phone (434) 977-4511 - Fax (434) 979-0698
www.serviceauthority.org
Sheet 9
1. Manhole S12 invert elevations are flat.
2. Relocate manhole S8 between Lots 30 and 31, and shorten to 3-feet
depth.
3. Shallow the downstream sewer segments based on new manhole S8
location and running the sewer main at 0.5 percent slope.
If you have any questions concerning this review feel free to call at me
(434) 977-4511, Ext. 113.
Sincerely,
Richard Nelson
Civil Engineer
RN/dbh
050601 Victoria nHeig htsComments 122122