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HomeMy WebLinkAboutSUB200700077 Certified Engineer's Report Certified Engineer's Report 2019-05-22 0 CHARLOTTESVILLE- — �� 20 GARRETT ST,SUITE K CHARLOTTESV VA 22902 . COLLINS ENGINEERING (434.293.3719 PH 434:293:2813.FX www.collins-engineering:com May14;2019 Virginia Department of Transportation Albemarle County :Charlottesville Residency . : : - Community Development Charlottesville,VA 22902 Charlottesville,VA 22902 RE: Stonewater Subdivision-Engineer's Certification Please allow.this letter to serve as a Road Certification for the Stonewater Subdivision,.specifically Penfield Lane-. : between stations 11+63 and 21+50,Penfield Place between stations.0+00 and 1+70,and Stonehenge Way :between stations 0+40 and 2+60. The:roadwaybase has been graded per the plans,with:the sub-base compacted : " - and tested by F&R(the third party inspections and testing company). Soils reports and:CBR's have been provided ;with this submission. The CBR's:are higher than the CBR's used during the design.:The average of the field CBR's is 7.03 and the design CBR is 5.0;therefore,the road design for Penfield Lane,Penfield Place,and Stonehenge Way is -acceptable.. The 6"21A Stone base has been installed along Penfield Lane and Stonehenge Way;and 5"21A stone base has " . : been installed along Penfield.Place,per the design drawings. The base pavement and top coat have also been placed: The base pavement has been installed at a depth between 2.5 inches and 3 inches,and the top coat has been installed at a depth of 1'/:-inches. The design drawings indicated a 3"base pavement, but with the updated field CBR's,the:base pavement at 2.5 inches to 3"is more than adequate for the traffic volumes On the roadway.The testing of the Stone depth and the pavement depths are acceptable and have been provided to VDOT for - acceptance. The CG6 curb and gutter has been installed along this portion of the roadway. The concrete sidewalks and CG - 12's have:been installed. The power and cable utilities have been installed along the roadway and the sidewalks. : : : . and CG-12 ramps are complete. Collins Engineering inspected and tested the CG-12 ramps for ADA compliance. :All ramps:are within tolerance for ADA compliance. - : The storm sewer system along Penfield Lane,Penfield Place,and Stonehenge Way has been completed,and the video camera of this system was previously provided to VDOT and Albemarle County,which was reviewed and accepted back in 2016 during the last review of the road asbuilt plans. Please allow this letter to serve as the final certification at the roadway within the Stonewater Subdivision have been completed in"accordance with VDOT and Albemarle county standards and specifications and in accordance with the approved road plans for this Subdivision and the design of Penfield Lane,Penfield Place and:Stonehenge - :Sinc ely; S ott Co lins, PE SAD d ; ' C431 SC " Lie.No..G35791 : . .