HomeMy WebLinkAboutWPO200900019 Review Comments Erosion Control Plan 2009-05-19� OF AL
,. vIRGINIP
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Midway Farm
Plan preparer: Bent Tree Design, Ellie Carter [fax (434) 220 -25531
Owner or rep.: MACMILLAN - FARRELL LLC [fax Unknown]
Plan received date: 21 April 2009
Date of comments: 19 May 2009
Reviewer: Max Greene
The plans for Midway Farm, submitted on 21 April 2009, have received Engineering review.
The plans require the following items adequately addressed prior to final approval.
A. Road and drainage plans (WP0200900019)
1. VDOT approval is required. Comments will be forwarded when received. [DM905]
2. Vicinity map will be 1:2000 scale. [18- 32.6.6]
3. Benchmark location, elevation, and datum required. An existing utility or other
known position will suffice. [policy]
4. Date and source of the topographic information: All topography should be at least
visually field verified by the designer within the last year [18- 32.6.6, 14 -302, Policy
for date]
5. FEMA map and date references labeled for FEMA floodplain [Policy]
6. Label pavement widths on existing streets.
7. Label existing street names.
8. Street name sign and VDOT traffic control sign locations shown.
9. Pavement designs and details required.
i. Label existing and proposed grade at each 50ft station point on profile.
ii. Pipe and utility crossings shown and labeled on profile
iii. typical sections for each street, street segment, or alley
iv. Pavement widths meeting design standards
v. Pavement crown at 1/4 ":1' slope
vi. Pavement surface, base, and sub -base thicknesses and materials
vii. Shoulder at 1 ":1' slope or flatter and 4' or greater width for rural sections
viii. Maximum slopes of 2:1 or flatter [policy]
ix. Proposed slopes steeper than 3:1 have low maintenance (not grass) ground
cover specified on the plan [Policy]
x. Show right -of- way /easement width, centered on street, meeting design
standards
xi. Show ditches dimensioned at 3:1 slope from shoulder, 1' depth min., and 4'
min. width from shoulder to ditch centerline, for rural sections
xii. Add Albemarle County general construction notes for streets to plan.
Engineering Review Comments
Page 2 of 2
B. Stormwater Management and Mitigation Plan (WPO200900019)
1. This site is under the required 1 -acre limit for storm water detention [17 -314];
however, water quality is still required [17 -303]. Please submit a SWM application
and fee with the SWM plan. Please review the Design Manual Checklist for plan
requirements.
2. A completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facilities will be required. [ 17 -304E]
C. Erosion Control Plan (WPO200900019)
1. E &SC narrative:
i. Soil Description is required and is located in the County GIS.
http://gisweb.albemarle.org/
ii. County Standard E &SC notes are required and is located in the Design
Manual.
iii. Please submit the Sediment Trap design summary for the sediment trap.
2. E &SC Plan:
i. Please add (DC) dust control.
ii. Please add (TS) temporary seeding.
iii. Please add (PS) permanent seeding.
iv. Show soil boundaries with labels.
v. Show stockpile locations within limits of disturbance or state on the plan and
in the narrative that no stockpiles are required and surplus supplies and
materials will be stored off -site in an approved location.
vi. Please show the locations of construction staging, parking, and other related
areas within the limits of disturbance.
vii. Trap construction details with bottom elevations and dimensions matching the
sediment trap design summary work sheet.
Due to the required additions /corrections, additional comments or requirements may be forth coming.
Once these comments have been addressed, please submit 3 copies of the revised plans, calculations,
and narratives to Current Development Engineering.
Current Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these review
comments. Please contact Max Greene at 434 - 296 -5832 ext. 3283 or email mgreene @albemarle.ora
to schedule an appointment.
File: El_rp,esc,swm_MRG_Midway Farm.doc