HomeMy WebLinkAboutSDP201600007 Review Comments Final Site Plan and Comps. 2017-10-26
County of Albemarle
Department of Community Development
Memorandum
To: Christopher Perez, Planning
From: Matt Wentland, Engineering
Date: 26 September 2017
Subject: Inglewood Terrace (SDP201600007)
The final site plan for Inglewood Terrace has been reviewed. The following concerns should be addressed;
1. Due to two conflicting stream studies, Staff requests that a third study be performed, either by a
third party agreed upon by both the homeowners and the developer or by the US Army Corps of
Engineers. This third study will determine whether or not a buffer will be placed on the parcels in
question and on all parcels downstream of the site.
Comment addressed.
2. Within the steep slopes overlay district, the maximum height of a single retaining wall is 6 feet
[18-30.7.5]. This plan proposes a 9’ to 10’ wall passing through an area designated as a managed
slope. Please adjust. Note that the minimum horizontal distance between individual walls in a
stepped wall system is 3 feet. Provide certified wall plans.
Comment addressed.
3. The width of drainage easements should be calculated using the formula found in the Design
Standards Manual (Easement Width = Pipe Diameter + 2’ + 2(depth – 5’) + 10’).
Comment not addressed.
The 20’ drainage easement will not provide enough space to replace the larger and deeper
pipes if the need arises. The easements should be expanded to the extent possible. The
Service Authority will allow the drainage easement to overlap their easements as long as it
doesn’t go over the pipe itself. For example, this will allow the easement from B2-B3 to
expand to 30’ or more.
(Rev. 3) Comment addressed.
4. The minimum width for a private road easement is 30’. [Design Standards Manual]
Comment addressed.
5. The minimum sight distance on a private road is 100’ and the minimum K for a sag curve is 15.
[Design Standards Manual]
Comment addressed.
6. Verify that proper sight lines are provided at the parking on the inside of the curve on the private
road.
Comment addressed.
7. Show stationing on the road centerline on the plan view.
Comment addressed.
8. Provide a barrier or guard rail at the end of the private road.
Comment addressed.
Albemarle County Community Development
Engineering Review comments
Page 2 of 2
9. VDOT normally requires a 45’ radius for turnarounds on residential streets, but may not be
required due to distance from intersection.
Comment addressed.
10. The landscaping plan is showing trees planted inside the drainage easements directly over pipes.
Comment addressed.
11. Provide plans for the retaining wall and verification that there is no issue with the wall and wall
foundation being submerged during storm events.
Response noted.
12. Additional erosion control measures should be used below ST1 to ensure runoff does not enter the
neighboring property. Demonstrate how ST1 will function during construction. It appears that it
will be filled in almost immediately when the storm system and fill slope are installed.
Response noted. See VSMP review for any further comments.
Comments for Final Site Plan (previously provided by Michelle Roberge and remain unaddressed on
plans)
13. Retaining walls greater than 4’ require railing.
Comment addressed.
14. A separate road plan will need to be approved and bonded prior to the approval of a subdivision
plat.
Response noted.
15. VDOT approval is necessary for connection to public road and for improvements within their
right-of-way.
Comment addressed.
16. Show groundcover, not grass, for slopes greater than 3:1.
Comment addressed.
17. A VSMP application shall be approved prior to the approval of the final site plan.
Response noted.
18. Verify guardrails are not warranted under GRIT manual. Otherwise, please show.
Comment addressed.
Revision 3 Comments
19. The Stormwater Structure Table on C6 is missing.
20. Please remove the ROW vacation note on C4 and the line hooks on C3.
file: SDP201600007 Inglewood Terrace FSP Engineering Comments 09-26-2017.doc