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<br />980981DRAINAGE & UTILITY EASEMENTDRAINAGE & UTILITY EASEMENT30' DRAINAGE & UTILITY EASEMENT30' DRAINAGE & UTILITY EASEMENT5' DRAINAGE & UTILITY EASEMENT10' DRAINAGE & UTILITY EASEMENTTEAST INFILTRATION BASINHWL=972.74BTM=968.20(PRIVATELY OWNED AND MAINTAINED)1.4%1.5%1.4%1.4%1.5%3.1%
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<br />BREAKGRADEBREAK 72.23 EOF1.4%0.9%
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<br />FC7.15BIOLOG(TYP.)C7.41ROCKDIKEC7.41ROCKDIKEC7.15BIOLOG(TYP.)C7.41ROCKDIKETEMPORARYCONSTRUCTION FENCINGPROJECT NUMBER:DRAWING TITLEISSUE / REVISIONELECTRIC AUTOSALES & SERVICEHUDSON BLVD N.LAKE ELMO, MN 55042SHEET NUMBER©DENVER, CO 80209www.drakeres.comTel. 303.825.6200496 S. BROADWAYDRAKEMOTOR PARTNERS VANCOUVER, LLCAUG. 29, 2022 CITY SUBMITTALDRS22002I hereby certify that this plan was prepared by me, or under my direct supervision, andthat I am a duly Licensed Professional Engineer under the laws of the state ofMINNESOTA.Signature shown is a digital reproduction of original. Wet signed copy of this plan on file atLandform Professional Services, LLC office and is available upon request.Tom O. MeyerLicense No:Date:105 South Fifth AvenueSuite 513Minneapolis, MN 55401Tel: 612-252-9070Fax: 612-252-9077Web: landform.netLandform®and Site to Finish®are registered service marks of Landform Professional Services, LLC.OCT. 26, 2022 REVIEW SETJAN. 25, 2023 PRELIM BID SETFEB. 13, 2023 CITY SUBMITTALNORTH GRADING,DRAINAGE, PAVING,& EROSION CONTROLC3.3NORTH0 40 80Contact utility service providers for field location of services 72 hours prior to beginning grading.Refer to the Geotechnical Report prepared by American Engineering Testing, Dated 09/14/22, for additional information on backfillmaterial and groundwater conditions.Remove topsoil from grading areas and stockpile sufficient quantity for reuse. Materials may be mined from landscape areas for useon site and replaced with excess organic material with prior Owner approval.Remove surface and ground water from excavations. Provide initial lifts of stable foundation material if exposed soils are wet andunstable.Rough grade Building Pad to 12 Inches below Finished Floor Elevation (FFE).Refer to Structural Specifications for earthwork requirements for building pads.An Independent Testing Firm shall verify the removal of organic and unsuitable soils, soil correction, and compaction and provideperiodic reports to the Owner.Place and compact fill using lift thicknesses matched to soil type and compaction equipment to obtain specified compactionthroughout the lift.Compact cohesive soils in paved areas to 95% of maximum dry density, Standard Proctor (ASTM D698) except the top 3 feet whichshall be compacted to 100%. Compact to 98% density where fill depth exceeds 10 feet. The soils shall be within 3% of optimummoisture content. In granular soils all portions of the embankment shall be compacted to not less than 95% of Modified ProctorDensity (ASTM D1557).Coordinate with Architectural for building stoop locations. Slopes shown on adjacent walks and pavements should continue overstoops.12.13.14.15.16.17.18.19.20.21.nstall perimeter sediment controls prior to beginning work and maintain for duration of construction. Remove controls after areascontributing runoff are permanently stabilized and dispose of off site.Install inlet protection: Wimco RD or CG models as appropriate, or approved equal. Maintain protection until project is stabilized.Limit soil disturbance to the grading limits shown. Schedule operations to minimize length of exposure of disturbed areas.Management practices shown are the minimum requirement. Install and maintain additional controls as work proceeds to preventerosion and control sediment carried by wind or water.Refer to SWPPP Notes on Sheet C3.4 for additional requirements.Reserved.Contractor shall prevent sediment laden water from entering the filtration / infiltration system until the site is completely stabilized.Stabilization must be started immediately to limit soil erosion when the construction activity in that portion of the site has temporarilyor permanently ceased and will not resume for 14 calendar days.Seed, Sod, Mulch, Erosion Control Blanket, and Fertilizer shall meet the following Specifications, as modified.ItemSpecification NumberSodMNDOT 3878SeedMNDOT 3876MN Type 21-111 @ 100 lb./ac. - Temporary Erosion Control - Temporary Erosion Control, May 1 - Jul 31MN Type 21-112 @ 100 lb./ac. - Temporary Erosion Control - Temporary Erosion Control, Aug 1 - Oct 31MulchMNDOT 3882(MNDOT Type 1 @ 2 ton/ac., Disc Anchored)Erosion Control BlanketMNDOT 3885(MNDOT Type 3N (for 12 mo.) 4N (for 24 mo.))FertilizerMNDOT 3881General PlacementMNDOT 2575See Landscape Sheets for permanent turf and landscape establishment.Scrape adjacent streets clean daily and sweep clean weekly.2.4.5.6.7.8.9.10.11.Spot Elevations at curblines indicate flowlines unless noted otherwise. See Sheet C4.2 for rim elevations of catch basins.Grades between proposed spot elevations shall be continuous and nonvariable. Spot Elevations shall govern over contour lines.Meet and Match existing curb. Transition as needed.Paving Sections (Refer to Geotechnical Report by American Engineering Testing, Dated 09-14-2022)a. Bituminous Paving (Light Duty)2-inch Bituminous Wear (MNDOT 2360, SPWEA330F)Tack Coat (MNDOT 2357)2-inch Bituminous Base (MNDOT 2360, SPNWB340F)6-inch Aggregate Base (MNDOT 3138, Class 5)12-inch Granular Sub-Base (MNDOT 3149.2B4)Compacted Subsoilb. Bituminous Paving (Heavy Duty)2-inch Bituminous Wear (MNDOT 2360, SPWEA440F)Tack Coat (MNDOT 2357)2.5-inch Bituminous Base (MNDOT 2360, SPNWB330F)8-inch Aggregate Base (MNDOT 3138, Class 5)12-inch Granular Sub-Base (MNDOT 3149.2B4)Compacted Subsoilc. Concrete Walkways4-inch Concrete Walk, 4000 PSI, 5%-8% Air Entrained, Max. 4" Slump (MNDOT 2301)4-inch Aggregate Base (MNDOT 3138, CLASS 5)Compacted Subsoild. Concrete Drives, Aprons, and Exterior Slabs8-inch Concrete, 4000 PSI, 5%-8% Air Entrained, Max. 4" Slump (MNDOT 2301)6-inch Aggregate Base (MNDOT 3138, CLASS 5)Compacted SubsoilConcrete JointsInstall joints as shown and align across sidewalks, curbs, and pavement, paying attention to spacing of expansion joints.Joint spacing shall be as follows:a. Tooled joints: Divide panels into nominally equal areas unless shown otherwise.b. Expansion Joints: Sidewalks - 40 feet max.; Curbs - 60 feet max.; Pavement: 80 feet max.; Adjacent to buildingfoundations and stoops.c. Contraction Joints: Sidewalks - 8 to 10 feet; Curbs and Aprons - 12 to 15 feet.Accessible Parking Stalls and adjacent access aisles shall not exceed a 2.00% slope in any direction.Accessible Routes shall have a maximum cross slope of 2.00% and a maximum running slope of 5.00%.Adjust all structure rims to match pavement elevations.23.24.27.30GRADING NOTESPAVING NOTESGENERAL NOTESLEGEND:Inlet Protection:Tip Out Curb:Silt Fence:Vehicle Tracking PadESTIMATED QUANTITY21 ea.1 ea.2,735 ft.SYMBOLDESCRIPTIONEROSION PREVENTION AND SEDIMENT CONTROL NOTESFor construction staking and surveying services contact Landform at 612.252.9070.1.:Erosion Control Blanket3INFILTRATION BASIN INFORMATION & TESTINGAvoid soil compaction of infiltration practices. Any equipment used in infiltration areas should be small scaled and tracked. Installprotective fencing as shown before work beginsThe bottom of surface infiltration basins (not underground) shall be scarified to a depth of 12" prior to placement of topsoil or plantingmedia.DESIGN PERMEABILITY RATES:Infiltration 1 was designed with a permeability of 0.45 inches/hour.TESTING:Infiltration Basins: At the time of basin excavation, and prior to placement of any material (soil, chambers, etc.), permeability testingshall be performed.Filtration Basins: Once filtration basin media has been placed, permeability testing shall be performed.Contractor shall engage a qualified testing firm to measure the permeability of the basin surface utilizing a Double Ring Infiltrometer,Modified Philip Dunn (MPD) Infiltrometer, or other method approved by the Civil Engineer or Geotechnical Engineer. Test resultsshall be greater than or equal to the following rates to meet long term rates required for design:Infiltration 1 needs a permeability of 0.9 inches/hour. - - DESIGNER: TESTED RATE SHALL BE TWICE REQ'D.Contractor to contact the following to schedule testing. Representative staff from each entity may wish to observe the tests. Contactshall be made 72 hours prior to testing.Civil Engineer: Tom Meyer, tmeyer@landform.net, 612-252-9070Geotechnical Engineer: Rob Olson, rolson@teamAET.com, 651-659-1316Valley Branch Watershed: John Hanson, jhanson@barr.com, 952-832-2622City of Lake Elmo: Jack Griffin, jack.griffin@Focusengineering.com, 651-300-4264RATE OF TESTING: Contractor shall coordinate with the testing firm to provide permeameter tests at the following rates:Filtration/Infiltration Basin I.D. Basin Area (s.f.) No. of Tests Required132,4417Test results shall be provided to the Civil Engineer, Geotechnical Engineer, Watershed & City.22.23.24.25.a.b.c.d.26.2726282925:Pavement Sawcut:Construction LimitsESTIMATED QUANTITYSYMBOLDESCRIPTION:Wetland Fill1,500 s.f.:Enkamat 7020x s.f.:Maintenance Access Route
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