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Home My WebLink AboutLA18-000056 Neugent (710 Big Island) VAR Exhibit C Survey and Plansstudio෇ॻӃTSUKE Existing Site Layout Notes: Big Island Landscape Project 1” : 40’ Fire pit Flag pole Dock and stairs Beach Cistern & Bath House Porch Brick oven (ruins) drainage runnel Leach fieldCleanouts 50’ setback line 75’ setback line Rip rap Metal Arbor West dock studio෇ॻӃTSUKE 1. Overall Site Layout Additional Calculations:Subject property: 103,738 sq. ft. to OHWL Existing Hardcover - including current remodel project (from survey): 4,028 sq. ft. Proposed Riprap Ext: 247 sq. ft.Proposed Grass Access lane: 480 sq. ft.Proposed Gravel Access lane: 284 sq. ft.Proposed Gravel Access walk: 178 sq. ft.Proposed Entry Walk: 220 sq. ft.Proposed Paver walk & patios:1010 sq. ft. Total Proposed Hardcover: 2,419 sq. ft.Added to existing hardcover: 6,447 sq. ft.Property area coverage: 6.2% of lot area. Hardcover surfaces within 75’ of OHWL (from survey): 712 sq. ft. Proposed Entry Walk: 220 sq. ft.Proposed Riprap Ext: 247 sq. ft.Proposed Grass Access lane: 480 sq. ft.Proposed Gravel Access lane: 284 sq. ft.Proposed Gravel Access walk (partial in 75’ zone) : 92 sq. ft.Proposed Rebuild of retaining wall & path to west dock (net additional): 125 sq. ft. Total proposed hardcover surfaces within 75’ of OHWL: 1,448 sq. ft. Additional work within 75’ of OHWL:Proposed vegetative buffer: 5,500 sq. ft.Proposed Trees removed: 5Proposed Trees planted: 9 Big Island Landscape Project 1” : 40’ West DockRenovation New Trees New Trees Fire Pit New Trees Entry Walk Runnel Garden Woodchip paths Woodchip paths Additional planting areas Additional planting areas Savannah Plantings Shrub area Patio w/ grill Shrub area Foundationgardens Woodland Edge Plantings VegetativeBuffer VegetativeBuffer Rip rapExtension Access laneRigid plastic geogrid grass pavers Access laneRigid plastic geogrid gravel pavers Access walkRigid plastic geogrid gravel pavers Paver walk studio෇ॻӃTSUKE Shoreland & Woodland Edge Plantings Shoreland Plants to include: Fireworks GoldenrodSedum Autumn JoyBlack-eyed Susan CatmintPenstemon Husker RedLiatris KoboldSea LavenderJoe Pye Weed Gateway Echinacea varitiesPurple Dome AsterMarsh MilkweedAlliumStiff Goldenrod Little BluestemAutumn Moor GrassPrairie DropseedTufted HairgrassKorean Feather Grass Gro low SumacSmooth SumacServiceberryDwarf Bush HoneysuckleArctic Fire Dogwood Current vegetative cover is turf lawn to the top of the riprap wall -- directing runoff straight from lawn to lake. Proposed vegetative buffer will introduce a vegetative buffer strip, from 8’ to 20’ in depth, above the riprap walls. This vegetative buffer will be planting with native shorland species and adapted cultivars. The goal is a natural grass and forb buffer, rather than a manicured garden. This will provide filtration of all runoff from the yard, and allow some in-filtration as well. Some shrub plantings will be planted within this buffer area to provide some screening and provide some year-round visual edge. In the southern and wooded area of the property, the buffer will transition to understory and woodland edge plants that are more tolerant of the shade. The planting and design relies on the best practices as outlined in the Landscaping for Wild-life and Water Quality published by the MN DNR and The Lake Minnetonka Guide to Shoreline Gardens, funded by the Minnehaha Creek Watershed District. Disturbance for planting to be kept to a minimum. Planting will be plugs and seeding. Big Island Landscape Project LowShrub plantings Blue BeechRed Maple Ironwood TallerShrub plantings Shrub plantings transition to woodland edge plantings woodland edge& understory plantings White Oak studio෇ॻӃTSUKE X X X X XX Shoreland Tree Removal and Plantings Big Island Landscape Project Blue spruce - showing effects of Cytaspora Green Ash - Tree removal and planting plan at point Tree removal and planting plan along north shoreline Green Ash Remove 2 12” Blue Spruce Remove 19” Cedar Remove 115” Green Ash Remove 12” Green Ash Plant Ironwood Remove 15” Linden Plant 1Red Maple Plant 1Blue beech Plant 1White Oak Plant 2Blue beech Plant 2Ironwood List of Tree removal and replacement in 75’ area from OHWL: Removal of two Blue Spruce showing signs of illness.Removal of two Green Ash growing on the edge of the riprap and subject to EAB.Removal of one basswood that will likely have root zone disturbance because of riprap extension. Planting of 8 new native trees:3 Ironwood (Ostrya virginiana)3 Blue Beech (Carpinus caroliana)1 Red Maple (Acer rubrum)1 White Oak (Quercus alba) studio෇ॻӃTSUKE Proposed EntryWalk Existing steps 75’ OHW setback Proposed landing Proposed vegetative buffer Garden edge Entry Walk No real access walk exists to the front door of the house. Some re-claimed hexagonal pavers provide limited steps. The path is designed as a 4 foot wide walk to a new landing at the base of the stairs. the path and the landing would be a hardcover such as clay brick pavers or similar. The landing is beyond the 75’ setback. the new walk will provide a solid surface for access to the front door of the house. This will serve to assist the homeowner, but also provide emergency services safe and direct access to the building as well. The path is 55’ - 7” long by 4’ wide Big Island Landscape Project 24” studio෇ॻӃTSUKE Access Lane Big Island Landscape Project 929 930 931 932 933 934 935 936 928 927 926 937 938 939 OHWL100 yr OHWL 929 930 931 932 933 934 935 936 928 927 926 937 938 939 Existing conditions Section A-A’ - proposed existing soil/slope garage new riprap. selectboulder with flat side Access point - proposed riprap extension areaAccess lane - proposed handicapped ramp Access point - view from shore Grasspave 2 or NDS TufftrackNo crosspitch, but to conformto existing slope as much as possible Grasspave 2 or NDS Tufftrackor equal - grass infill Grasspave 2 or NDS Tufftrack or equalgravel infill Grasspave 2 or NDS Tufftrack or equalgravel infill 75’ line OHW line Transition to1/2” clear gravelinfill. Riprap extension 6” depth compacted 3/4” clear (no fines) aggregate bedding with landscape fabric.Approx 40% void space. Permiable.AA’ studio෇ॻӃTSUKE ARTICLE XIII. - STORMWATER QUALITY OVERLAY DISTRICTDIVISION 1. - IN GENERAL Sec. 78-1684. - Standard hardcover exclusions.Landscaping with permeable lining shall not be considered hardcover. Additionally, the following hardcover items shall be excluded from hardcover calculations: (1) Roads, trails, sidewalks, utilities and other hardcover encroachments intended for the pub-lic’s benefit; (2) Hardcover encroachments created by improvements on adjacent property not owned by the subject landowner; a. In such cases of encroachment, the square footage of all encroaching hardcover shall not be added to the overall hardcover counting against the subject lot; b. The land area upon which the encroachment rests shall count towards the overall lot area for the subject lot. (3) Retaining walls; (4) Handicapped ramps with a pervious surface below; and (5) The first 100 square feet of pervious paver patios/walkways or the first 100 square feet of deck with a minimum one-fourth-inch spacing between boards and a pervious surface below the decking. Proposed riprap area to conform to MCWD requirements and best practices. Also, to match and integrate with existing riprap. Existing riprap does not extend more than 5’ waterward from the OHWL, proposed extention to match. Proposed riprap to match existing slope, with no cross pitch. Not to exceed 2 feet above 100 year flood elevation or top of slope, whichever is lower. Grass paver and gravel paver area to be installed on 6” free draing clear gravel with no fines. Gravel area is sized to be equal to handicapped accessible van parking area for public lots. top of slopetop of slope above or atOHWL existing riprap proposed extension Riprap extension 10’ wide Access lanegrass paver widen laneto match gravelarea Proposed vegetativebuffer Access lanegravel paver Access walkgravel paver 75’ Setback Paver walk Access Lane Big Island Landscape Project studio෇ॻӃTSUKE Access Lane Big Island Landscape Project Permanent grassed or gravel car parks, cycle paths, driveways, access roads and other trafficked areas where a structurally-sound, well drained base is present orwill be installed. 11 BODPAVE 40 porous grass pavers are an interlocking cellular paving grid system for grass and ground reinforcement applications where there is regular pedestrian or vehicle use. BODPAVE 40 permeable paving grids allow full rainwater penetration and are manufactured from UV stabilised 100% recycled HDPE, in black or green. BODPAVE 40 pavers are strong, chemically inert & non-toxic, enabling them to provide a durable, safe & sustainable eco-friendly surface for trafficked areas. Features & Benefits • Load bearing capacity up to 150t/m2 - will cope with static axle roads up to 60kN. • Supplied as 4 pre-connected pavers (1m x 1m) - allows rapid installation • Interlocking connections per paver- excellent lateral transfer of traffic loads • 95% open surface structure- SUDS source control compliant • Grass or gravel finish-free draining and naturally pleasing appearance. • Reduced-Dig System, reduces installation time and costs, also helps rapid establishment and usage after installation. • Car parks • Wheelchair and disabled access • Pedestrian walkways • Golf buggy paths • SUDS source control Grid Structure BODPAVE 40 is suitable for grassed surfaces, gravel retention and SUDS source control applications. Applications BODPAVE 40’s open cell structure allows unrestricted healthy grass root growth and water infiltration and can be used as part of aSustainable Urban Drainage Systems (SUDS). The paver grids also incorporate 30mm ‘ground-spikes’ on the base which fix throughthe adjacent paving grid’s edge-loops to provide the entire structure with firm anchorage and structural integrity. TERRAM TX160 geogrid DoT reduced fines ‘Type 3’ Sub-base TERRAM T1000 Geotextile TERRAM T1000 Geotextile 60:40, Sand:Soil Rootzone or Gravel Bedding Subgrade soil with Grass or Gravel Typical profile Not all layers will apply to every application and drainage may be required. Please refer to design guidance documents. BODPAVE 40 Bodpave™40 TERRAM Data Sheets, Installation & Design Guidances and Case Studies can be downloaded from www.terram.com Bodpave 40 product details paver QUANTITY (per m2)COLOUR WEIGHT (Nominal)MATERIAL 4 Grids Black 4 Grids Green 4.8kg/m2 4.8kg/m2 100% Recycled Polyethylene 100% Recycled Polyethylene 150tonnes/m2 150tonnes/m2 PAVER SIZE (mm)LOAD BEARING CAPACITY 500 x 500 x 40 500 x 500 x 40 Occasional consecutive vehicular useRegular vehicular useFREQUENCYOF USEGRASSGRAVEL SUGGESTEDAPPLICATIONS NATIVE SOILS 0" TO 8" SECTION 1/4" to 1/2" 1.0" AASHTO #57 BASE ROCK OR APPROVED EQUAL WITH OPTIONAL TOP SOIL BLEND 2" PROPOSED FINISHED GRADE FILTER FABRIC (OPTIONAL) FILTER FABRIC (OPTIONAL) EXISTING GRADE NATIVE SOILS 0" TO 10" 8" 12" 0" TO 8" SEED PLANTING LEVEL NATIVE SOIL SURFACE WITH OPTIONAL FILTER FABRIC IF UNDERDRAIN IS NOT USED http://www.ndspro.com Call 1-888-825-4716 EZ ROLL ENGINEERED PERMEABLE PAVER GRASS SURFACE 1 of 2 SEE NOTES SHEET 2** EZ ROLL™ GRASS PAVER PRODUCT DESCRIPTION 2-1/4" HEXAGONAL CELLS 4'W X 150'L (600 SQ. FT.) CELL SIZE: STOCK ROLL SIZES: LATERAL SNAP LOCKS4'150'EZ ROLL GRASS PAVER DOMED REFLECTIVE DELINEATOR (OPTIONAL)1/2"REINFORCING AS REQUIRED (OPTIONAL) 6" X 6" CONC. EDGING (OPTIONAL) EXISTING GRADE SOD PLANTING LEVEL 4" DIA UNDERDRAIN (SEE NOTES SHEET 2) EZ ROLL PAVER 3' (MIN.) SEASONAL HIGH WATER TABLE NATIVE TOP SOIL INFILL PLAN VIEW 1" MIN. CLEARANCE Typical detail for grass paver installation Axon detail of grass paver/gravel paver option studio෇ॻӃTSUKE West Dock Renovation Big Island Landscape Project The current retaining wall and path to the west dock are in disrepair and in need of renovation. The materials used for the retaining wall are not suited and the wall is poorly constructed. The path is too close to the edge of the water, and severly cross-pitched. This contributes 100% of any precipitaion directly into the lake as runoff. Additionally, it is becoming unsafe for walking, as the ueven stones and the cross pitch make it a tripping hazard that drops off into the water. The proposed solution is to rebuild the wall using larger stones that are more appropriate for a wall. Additionally, moving the walkway in from the edge of the lake serves multiple purposes: it provides a buffer planting strip that will help filter runoff and those plantings will also help make the space feel less like it is pitching into the lake, The proposed vegetative buffer above and below the renovated wall and walk will serve to soften and hide the hardscape. In order to build the wall correctly and replace the path in a better configuration, it will be necessary to remove slighly more area than is currently disturbed. The wall will need to be slighly taller at the south end to accommodate the slope that is cur-rently slumping with the derilect wall. Existing wall studio෇ॻӃTSUKE Section showing old and new alignmentsCurrent EdgeCurrent WallWaterline Waterline Currentalignment (dots) 4” wide path Existing alignment Proposed re-alignment West Dock Renovation Big Island Landscape Project