HomeMy WebLinkAboutWPO201000031 Review Comments Erosion Control Plan 2010-06-08ALg�,��
�'IRGINZ�
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project:
SDP - 2010 -00025 / WPO- 2010 - 00031, Free Bridge Office - Final
Plan preparer:
Justin Shimp Oshimp @ddrva.com)
Owner or rep.:
Hurt Investment Company Inc.
Date received:
16 March 2010
Rev. 1:
4 May 2010
Rev. 2:
3 June 2010
Date of Comment:
26 March 2010
Rev. 1:
18 May 2010
Rev. 2:
8 June 2010
Engineer:
John Diez
A. General Review
Comments
1. Please submit a WPO application and fee for review and approval of an Erosion and Sediment
Control Plan.
(Rev. 1) Comment has been addressed.
2. All proposed slopes must be 2:1 (horizontal: vertical) or flatter.
(Rev. 1) Comment has not been addressed. Please see contours 54 through 60 (behind the
dumpster and to the left of the proposed pipe)
(Rev. 2) Comment has been addressed.
3. Proposed slopes steeper than 3:1 must have low maintenance (not grass) ground cover specified on
the plan.
(Rev. 1) Comment has been addressed.
4. VDOT approval must be obtained for any plans affecting public right -of -way.
(Rev. I) Comment has been acknowledged.
5. All parking areas must not exceed 5% grade anywhere, in any direction.
(Rev. 1) Please disregard comment. However, some grading in the travelway exceeds the 10%
maximum slope. Please see contours 50 through 62.
(Rev. 2) Comment has not been addressed. Grading in the travelway still exceeds the 10%
between contour lines 58 through 62. Please revise.
6. Please provide all utility crossings on the drainage profiles.
(Rev. 1) Comment has been addressed.
7. Please provide throat lengths for each drop inlet.
(Rev. 1) Comment has been addressed.
8. Please provide concrete inlet shaping (IS -1) to storm STR. #7.
(Rev. 1) Comment has been addressed.
9. Please provide traffic generation and distribution summary (ADT's).
(Rev. 1) Comment has been addressed.
10. Pipe slopes must be at 0.5% min. to 16% max. (per VDOT standards for anchors over 16 %).
(Rev. 1) Comment has been addressed.
11. Outlet velocities for any pipe cannot exceed 15 fps.
(Rev. 1) Comment has not been addressed. The anchored pipe must be an RCP, not HDPE.
Please revise.
(Rev. 2) Comment has been addressed.
B. Stormwater Management Comments
12. Please submit a WPO appncation and fee for review and approval of an Erosion and Sediment
Control Plan.
(Rev. 1) Comment has been addressed.
13. Please provide a copy of an agreement between Free Bridge and the owner of parcel 78F -A for use
and maintenance of the stormwater management pond on this parcel.
(Rev. 1) Comment has been addressed.
14. Please provide a copy of the calculations, details and plan showing that the stormwater pond
design accounted for the water quality and quantity requirements of the Free Bridge site.
(Rev. 1) Comment has been addressed.
B. Erosion and Sediment Control Comments
15. Please provide an Erosion and Sediment Control Narrative
(Rev. 1) Comment has been addressed.
16. Please provide dust control (DC).
(Rev. 1) Comment has been addressed.
17. Please provide a stockpile location.
(Rev. 1) Comment has not been addressed. If the stockpile location is to be used on the adjacent
site (Whitehouse Commercial), the limits of disturbance must be shown, along with the
approved WPO plans and grading permit from Whitehouse.
(Rev. 2) Comment has been acknowledged.
18. Please provide a staging and parking area.
(Rev. 1) Comment has not been addressed. If the staging and parking area is to be located on
the adjacent site (Whitehouse Commercial), the limits of disturbance must be shown, along
with the approved WPO plans.
(Rev. 2) Comment has been addressed.
19. Please include the proposed pipe connecting to STR. #EX57 in your limits of disturbance.
(Rev. 1) Comment has been addressed.
20. Is the silt fence on the northeast side of the site part of the construction? If so, please include it in
your limits of disturbance.
(Rev. 1) Comment has been addressed.
21. Please provide silt fence along the northeast side of the site between both proposed inlet
protections.
(Rev. 1) Comment has not been addressed. The silt fence must be provided along the proposed
curb of the northeast side of the parking lot. I've entailed you a pdf showing the specific
location.
(Rev. 2) Comment has been addressed.
22. Please provide a letter of intent from the owner of TMP 78F -A with permission to use the pond as
an E &S and SWM measure.
(Rev. 1) Comment has been addressed.
The Erosion & Sediment Control Plan (WP0201000031) submitted 3 June 2010 have received
Engineering Review and meet Albemarle County minimum checklist items for approval. Please
submit 5 paper copies of the Plan to Current Development Engineering.
The E &SC bond amount is $8,800. The forms and instructions to post the Water Protection
Ordinance Bond can be found on the Community Development Department Web site on
www.albemarle.or .g.
A completed copy of the Standard Stormwater Maintenance Agreement and fee for recordation for
the stormwater facilities is required prior to final approval. [17-304E] The forms and instructions
can be found on the Community Development Department Web site on www.albemarle.org.
You may contact Ana Kilmer (Albemarle County Department of Community Development) at ext.
3246 for further information on bonding procedures and Maintenance Agreements.
Once the E &SC bond has been posted, you may contact the Department of Community
Development to arrange a pre - construction meeting with a County Erosion & Sediment Control
Inspector. Should the County Inspector find the limits of disturbance increased or the need for
additional control measures required to protect the site, additional fees will be required.
\\ Cob- dts01 \cityviewlnk\Docs \2010 \SDP \SDP201000025 Free Bridge Office- Final\E3_fsp_esc_swm_JPD_10 -025 - Free Bridge
Office.doc