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Home My WebLink AboutWPO201400065 Correspondence 2014-08-04John Anderson From: Chris Mulligan [CMulligan @roudabush.com] Sent: Tuesday, October 07, 2014 11:17 AM To: John Anderson Subject: RE: OLA Attachments: 1 YEAR PRE Summary.pdf; HydroCAD Summary.pdf; OLA- swm.pdf; VRRM_ReDev Compliance Spreadsheet—v2.8-2013-3 infil.xlsm John, See attached support and let me know if this will work for you. Also attached is the full size representation of the documentation for the plan set. 121 clltme AaMoaff 914 Monticello Road Charlottesville, Virginia 22902 (804 ) 437 -2788 (cell) From: John Anderson [ mailto :landerson2 @albemarle.org] Sent: Monday, October 06, 2014 5:11 PM To: Chris Mulligan Cc: Glenn Brooks Subject: RE: OLA Chris, 9VAC25- 870 -66 reference 24 -hr storm events, and 9VAC25- 870 -72 states TR -55 should be used for analysis, that a VSMP authority may allow the Modified Rational Method, but ACCD does not allow it. I hope it's possible to piece together an analysis using TR -55, since we do not accept MRM. We'll talk tomorrow - thanks for your time and help today. From: Chris Mulligan [ mailto:CMulligan @roudabush.com] Sent: Monday, October 06, 2014 3:59 PM To: John Anderson Subject: OLA The other issue appears to be the use of the SCS method for such small areas. The use of the modified rational method is much more appropriate for smaller drainage areas( <20 acres). This is also outlined in the manual. I am going to look at it more from this approach to see if it is in fact more realistic, and will get back with you. C9iwis /L%a /oaf 914 Monticello Road Charlottesville, Virginia 22902 (804) 437 -2788 (cell) Digs, Inc. PROPOSAL P.O. Box 31 II Charlottesville,VA 22902 Page: 1 of 5 (434)978-4435-office (434)978-3703-fax Date: 3-5-14 Rev.: 6-17-14 Rev.: 7-25-14 Proposal Submitted To: Work To Be Performed At Abrahamse&Company OLA Chapel Addition l. Categories Quantity Unit Cost Quote ■ Mobilization 1 LS $2,750.00 $2,750.00 Layout 1 LS $3,500.00 $3,500.00 Clearing 1 LS $600.00 $600.00 Demo/Disposal 1 LS $2,440.00 $2,440.00 Construction Entrance 1 LS $2,700.00 $2,700.00 Silt Fence 1 LS $2,460.00 $2,460.00 Diversion Dike 1 LS $700.00 $700.00 Inlet Protection . 1 LS $600.00 $600.00 Sediment Trap 1 LS $4,365.00 $4,365.00 k Strip/Replace Topsoil 1 LS $7,500.00 $7,500.00 Gut/Fill/Import 1 LS $94,990.00 $94,990.00 (, Grading 1 LS $4,045.00 $4,045.00 --Patoidation-Bran- 1 LS --$81-85+:96 --$878561.08---Storm Sewer 1 ill LS $14,150.00 $14,150.00 Infiltration Pits 1 LS $6,050.00 $6,050.00 CG-2 1 LS $2,205.00 $2,205.00 Sidewalk 1 LS $4,480.00 $4,480.00 Steps with Cheek Wall 3E-- 1 LS $20,635.00 7 - $20,635.00 Fire Lane Stone 1 LS $2,975.00 $2,975.00 Subtotal $185,995.00 All material is guaranteed to be as specified,and the above work to be performed in accordance with the drawings and specifications submitted for above work and completed in a substantial workmanlike manner for the sum of Dollars($ 185,995.00)with payments to be made as follows: Net 10 Days.1.5%fmo after 30 days.In addition,the undersigned agrees to pay DIGS,Inc.all costs of collection including attorneys fees. This proposal may be withdrawn from us if not accepted within 15 days. Any alteration or deviation from above specifications involving extra costs,wilt be executed only upon written orders,and will become an extra charge over and above the estimate.All agreements contingent upon strikes,accidents,or delays beyond our control.Owner to carry tire,tornado,and other necessary 1 insurance upon above work.Workmen's Compensation and Public Liability Insurance on above work taken out by DIGS,Inc. 1 s Respectfully Submitted: Brook R.Wood �f Per: Digs,Inc. 1 Acceptance of Proposal The above prices,specifications and conditions are satisfactory and are hereby accepted. { You are authorized to do the work as specified. Payment will be made as outlined above, Please sign acceptance of proposal and return one copy. li It Date: Signature: il R Ij Digs, Inc, PROPOSAL P.O. Box 31 Charlottesville,VA 22902 Page: 2 of 5 (434)978-4435-office (434)978-3703-fax Date: 3-5-14 Rev.: 6-17-14 Rev.: 7-25-14 Proposal Submitted To: Work To Be Performed At: Abrahamse&Company OLA Chapel Addition Categories Quantity Unit Cost Quote Subtotal $185,995.00 Paving/Roadway Stone 1 LS $27,300.00 $27,300.00 Paint Striping/Wheel Stops 1 LS $1,650.00 $1,650.00 Temporary Seeding 1 LS $2,600.00 $2,600.00 Project Management 1 LS $8,705.00 $8,705.00 TOTAL $226,250.00 A 2. 17 `few GpI All material is guaranteed to be as specified,and the above work to be performed in accordance with the drawings and specifications submitted for above work and completed in a substantial workmanlike manner for the sum of Dollars($ 185,995.00)with payments to be made as follows: Net 10 Days.1.5%fmo after 30 days.In addition,the undersigned agrees to pay DIGS,Inc.all costs of collection including attorneys fees. This proposal may be withdrawn from us if not accepted within 15 days. Any alteration or deviation from above specifications involving extra costs,will be executed only upon written orders,and will become an extra charge over and above the estimate.All agreements contingent upon strikes,accidents,or decays beyond our control.Owner to carry fire,tornado,and other necessary insurance upon above work,Workmen's Compensation and Public Liability Insurance on above work taken out by DIGS,inc. Respectfully Submitted: Brook R.Wood Per: Digs,Inc. Acceptance of Proposal The above prices,specifications and conditions are satisfactory and are hereby accepted. You are authorized to do the work as specified. Payment will be made as outlined above. Please sign acceptance of proposal and return one copy: Date: Signature: • Nese John Anderson From: Chris Mulligan [CMulligan @roudabush.com] Sent: Tuesday, October 07, 2014 12:10 PM To: John Anderson Subject: FW: OLA Attachments: Our Lady of AngeIs332.pdf I'd forgotten to attach the soil infiltration tests done by Steve Gooch. e4eif/+f 914 Monticello Road Charlottesville,Virginia 22902 (804) 437-2788(cell) From:John Anderson [mailto:ianderson2Ctalbemarle.org] Sent:Tuesday, October 07, 2014 11:18 AM To:Chris Mulligan Subject: RE: OLA Thanks, Chris From: Chris Mulligan [mailto:CMulligan(aroudabush.com] Sent: Tuesday, October 07, 2014 11:17 AM To: John Anderson Subject: RE: OLA John, See attached support and let me know if this will work for you. Also attached is the full size representation of the documentation for the plan set. c, e,(fa f 914 Monticello Road Charlottesville, Virginia 22902 (804) 437-2788 (cell) From:John Anderson [mailto:ianderson2@albemarle.org] Sent: Monday, October 06, 2014 5:11 PM To:Chris Mulligan Cc:Glenn Brooks Subject: RE: OLA Chris, 9VAC25-870-66 reference 24-hr storm events, and 9VAC25-870-72 states TR-55 should be used for analysis,that a VSMP authority may allow the Modified Rational Method, but ACCD does not allow it. I hope it's possible to piece together an analysis using TR-55, since we do not accept MRM. We'll talk tomorrow-thanks for your time and help today. From: Chris Mulligan [mailto:CMullig @roudabush.com] Sent: Monday, October 06, 2014 3:59 PM To: John Anderson Subject: OLA The other issue appears to be the use of the SCS method for such small areas. The use of the modified rational method is much more appropriate for smaller drainage areas(<20 acres). This is also outlined in the manual. I am going to look at it more from this approach to see if it is in fact more realistic,and will get back with you. ask. /f4 914 Monticello Road Charlottesville, Virginia 22902 (804)437-2788 (cell) 2 ( 1 97!{020€ FAX(4 34)2 6-S22O UUDABUSH,GALE&ASSOC.,INC aa INPf OWABUSI"I,COM A PRO,'ESS;c ,%.4J.-CORPO'1V " 9t4 NIONTACELLOItCAO CHARLor-esv!LLE.VIRGINIA 22902 August 20, 2014 Mr. Glenn Brooks, P.E. County Engineer Albemarle County RE: Our Lady of the Angels Monastery Dear Mr. Brooks, Thank you for your prompt review and response to the VSMP application for Our Lady of the Angels Monastery. I have reviewed your comments and offer the following. I have attached a copy of the check submitted by Shank and Gray with the submittal package for the Site Plan and WPO Plan. It is Check No. 6006 for$1350. I believe the reference number you included in your comment was from Old Trail. I have attached two copies of the WPO/Erosion and Sediment Control Plans for your review. Stormwater management is being provided within the redevelopment area. One method of stormwater management used on this project is infiltration pits, which are shown on Sheet 4 of the Site Plan and detailed on Sheet 4 of the WPO Plan. The other technique used is sheet flow to open space. We are aware of DEQ's requirements of utilizing open spaces as a stormwater management treatment area. A long-term management plan and necessary legal covenants will be prepared and submitted prior to Site Plan/WPO Plan approval. A site specific Pollution Prevention and Spill Prevention Plan has been prepared that identifies the locations of fueling areas, wash out areas and sanitation facilities. I am attaching two copies for your review. The SWPP/PPP document has been updated to more accurately reflect site conditions and construction activities for the project. The Pollution Prevention Certification has be signed and included with this resubmittal package. I believe the attached information and noted revisions satisfy your comments. Please do not hesitate to contact me if you have any questions or comments. Regards, Chris Mulligan SDP 201400035 Our Lady of the Angels Monastery Response to Max Green's Comments 1) WPO Plans,Application and Fee are required for disturbances over 10,000 square feet The WPO Plans include the Erosion and Sediment Control Plan and the Stormwater Management Plan. • Erosion Control Plan o Construction Entrance o Silt Fence o Diversion Dike o Tree Protection o Sediment Trap (which will be converted after construction is finished to a Biofilter) • Stormwater Management Plan o Utilized VaRRM spreadsheet to determine requirements o Infiltration pits provided 2) Limits of Disturbance do not appear to encompass all proposed work. Limits of disturbance line adjusted... and included in the erosion and sediment control plan. 3) Date and Source of 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] Noted. 4) The proposed work is on Parcel 0200-00-00-040A1. Noted. 5) Retaining wall labeled with a maximum height(Walls require building permits according to Building Official policy). Cheek walls are proposed to protect steps. <3' 6) Safety railing shown for retaining walls over 4' high(building permit may be more strict) [Policy] Cheek walls are proposed only to protect dirt from steps. 7) Guardrail with VDOT designations shown for retaining walls next to parking or travelways [18- 32.7.2] The plan is to raise and resurface an existing graveled entrance. The slopes are being reduced to less than 16%, and the access shall be paved. A small-flat-shoulder has been introduced along the entrance, but guardrail is not planned. 8) Show Critical Slopes on plan. There are no critical slopes within the Steep Slopes Overlay District (created by the BOS on March 5, 2014). The steep slopes from the as-built topography onsite are shaded as stabilization areas on the Erosion Control Plans. 9) Access Road appears to exceed 10%slope requirements for access aisles [18-4.12.17] We request a waiver to this standard to allow a maximum grade of 15%. See letter under separate cover. Per 4.12.17 "The county engineer may increase the maximum grade, upon a finding that no reasonable design alternative would reduce or alleviate the need and that the increase in grade would be in the best interest of public health, safety and welfare.The developer must request the waiver in writing and provide all information necessary to justify that no reasonable design alternative exists."