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Home My WebLink AboutWPO201300058 Review Comments 2013-08-20�pF ALg� . t7FtGI'St4' COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road Charlottesville, Virginia 22902 WPO Plan Review Project: Hollymead Town Center (Area C) Block IV Number: WP0201300058 Date: 13 Jan 2013 Reviewer: Michelle Roberge This is an abbreviated review comment notice. County engineering staff is available every Thursday afternoon to discuss details of review. To schedule, please call your reviewer for an appointment. Erosion & Sediment Control: (Code Chapter 17, Article II) Y N X X X X Adequate X Not Adequate State standards followed, and Design Standards Manual notes and details Adequate limits and perimeter measures out of work areas All stages protected adequately Adequate channels X -Show inlet protection for structure 1A - Connect RWD with diversion dike floc, Stormwater Management: (Code Chapter 17, Article 111) Y N Adequate X Not Adequate Enough capture and treatment for on -site areas (using SWM Facility #2) Enough detention storage for on -site areas (using SWM Facility #2) Sealed hydrologic and hydraulic computations provided -I discussed the issue of pipe between structures 62 and 61 with the County Engineer. It appears that even though the HGL works, the built structures were not built to VDOT watertight standards. Therefore, this pipe will still need to be replaced. Please replace with 24' pipe (open channel condition). Mitigation: (Code Chapter 17, Article III) Adequate Not Adequate Y N n/a Buffers and disturbed areas adequately shown n/a Adequate plantings at 2:1, or other mitigation provided This review attempts to encompass the larger compliance questions. County staff does not assume responsibility for any calculation or plan details, and cannot cover the intricacies of every plan submitted. Each plan and calculation must have a professional seal and signature to assume these responsibilities. This plan Approved (please see attached Approval Fact Sheet) X Not Approved is �pF ALg� . t7FtGI'St4' COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road Charlottesville, Virginia 22902 WPO Plan Review Project: Hollymead Town Center (Area C) Block IV Number: WP0201300058 Date: 1 Nov 2013 Reviewer: Michelle Roberge This is an abbreviated review comment notice. County engineering staff is available every Thursday afternoon to discuss details of review. To schedule, please call your reviewer for an appointment. Erosion & Sediment Control: (Code Chapter 17, Article II) Y N X Adequate X Not Adequate State standards followed, and Design Standards Manual notes and details X Adequate limits and perimeter measures out of work areas X All stages protected adequately X Adequate channels X - Diversion dikes (behind lots 18 -27) to silt trap still needs to be shown. -Place a note that positive drainage will be maintained near entrance to direct water to silt trap or show a RWD at the entrance. -Also, place a note that the entrance will be built to completion only after positive drainage from the diversion dike to the silt trap is no longer required by the county E &S inspector. -Place a note that states lots 24 -28 can be issued a building permit only after the sediment trap is removed and area is stabilized. Stormwater Management: (Code Chapter 17, Article III) Y N Adequate X Not Adequate Enough capture and treatment for on -site areas (using SWM Facility #2) Enough detention storage for on -site areas (using SWM Facility #2) Sealed hydrologic and hydraulic computations provided - Include storm drain profiles with this WPO application. -The sediment trap depth, D1, is incorrect. Per elevation shown on sheet ES5, DI is 2.2'. -DA on ES6 do not match values on ES7. - For structures 62 and 61, provide as- builts value. It appears the pipe capacity for the 18" pipe is 14 cfs. The as- builts can be found in 2301 HTC Timberwood Boulevard PH1 Road Plans. - Include structure IA on ES7 comps. - Please note some comments on the site plan regarding driveways may affect WPO plan. Mitigation: (Code Chapter 17, Article Ill) Adequate Not Adequate Y N n/a Buffers and disturbed areas adequately shown n/a Adequate plantings at 2:1, or other mitigation provided This review attempts to encompass the larger compliance questions. County staff does not assume responsibility for any calculation or plan details, and cannot cover the intricacies of every plan submitted. Each plan and calculation must have a professional seal and signature to assume these responsibilities. This plan Approved (please see attached Approval Fact Sheet) X Not Approved is id, � .rM1 , COUNTY OF ALBEMARLE tt ® � Department of Community Development ` 401 McIntire Road Charlottesville,Virginia 22902 WPO Plan Review Project: Hollymead Town Center(Area C) Block IV Number: WPO201300058 Date: 11 Sep 2013 Reviewer: Michelle Roberge This is an abbreviated review comment notice. County engineering staff is available every Thursday afternoon to discuss details of review. To schedule,please call your reviewer for an appointment. Erosion & Sediment Control: Adequate (Code Chapter 17,Article II) X Not Adequate Y N X State standards followed, and Design Standards Manual notes and details X Adequate limits and perimeter measures out of work areas X All stages protected adequately X Adequate channels X Move silt trap to NW corner away from road entrance. Show construction entrance as 12'x70'. Show silt fence around stockpile area. See attached image. Stormwater Management: Adequate (Code Chapter 17,Article III) X Not Adequate Y N X Enough capture and treatment for on-site areas(using SWM Facility#2) X Enough detention storage for on-site areas(using SWM Facility#2) X Sealed hydrologic and hydraulic computations provided r X Show crown,curb and gutter for entire length of road. Raise lots 18-29 so garage is at least 1' above road. Altin- Include all stormsewer calcs,details& profiles with this WPO application. Reference the approved application number for items on sheet ES7. Show two DI near the NW entrance(See attached image). Mitigation: Adequate (Code Chapter 17,Article III) Not Adequate Y N n/a Buffers and disturbed areas adequately shown n/a Adequate plantings at 2:1,or other mitigation provided This review attempts to encompass the larger compliance questions. County staff does not assume responsibility for any calculation or plan details, and cannot cover the intricacies of every plan submitted. Each plan and calculation must have a professional seal and signature to assume these responsibilities. This plan Approved (please see attached Approval Fact Sheet) is X Not Approved IMAG0327.JP9 Type:JPG File Size.894 KB Dimension:1088 x 1920 pixels - •-• 40, 4000 001„ 9�2�13 eor4prtm ese - ;) ez nc to-{e. Pbbon, c 44%L. limits el °eo 1 [ sit 14# a p/vXnierfe lxafe R/Laa above, ti 1 a j s `ta.. t m L tom. +N'�-T 5" 5 ' i$\ $ It ' Jf }` + 0.r.• 1 - 4 , 4, , ‘ e \\:, ilr I•] � tra C n