Low Impact Development Manual for Michigan - OSEH - University ...

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Designer/Reviewer Checklist for Infiltration Berms Was the Soil Infiltration Testing Protocol followed?* ITEM YES NO N/A NOTES Appropriate areas of the site evaluated? Infiltration rates measured? Was the Infiltration BMP followed? Two-foot separation from bedrock/SHWT? Soil permeability acceptable? Natural, uncompacted soils? Excavation in berm areas minimized? Loading ratio considered? Drawdown time less than 72 hours? Erosion and Sedimentation control? Feasible construction process and sequence? Entering flow velocities non-erosive? Berm height 6 to 24 inches? Berm designed for stability (temporary and permanent)? Acceptable berm side slopes? Are berm materials resistant to erosion? Located level, along contour? Acceptable soil for plants specified? Appropriate plants selected? Maintenance accounted for and plan provided? * In general, the protocol should be followed as much as possible (although there is more flexibility for berms than for other BMPs such as pervious pavement and subsurface infiltration that rely almost entirely on infiltration). LID Manual for Michigan – Chapter 7 Page 216
Designer/Reviewer Checklist for Infiltration Trenches, Infiltration Basins, Dry Wells, and Subsurface Infiltration Beds Was the Soil Infiltration Testing Protocol followed? Appropriate areas of the site evaluated? Infiltration rates measured? Was the Infiltration BMP followed? ITEM YES NO N/A NOTES Two-foot separation between the bed bottom and bedrock/ SHWT? Soil permeability acceptable? If not, appropriate underdrain provided? Adequate separations from wells, structures, etc.? Natural, uncompacted soils? Level infiltration area (e.g., trench bottom, bed bottom)? Excavation in infiltration area minimized? Hotspots/pretreatment considered? Loading ratio below 5:1? Storage depth limited to two feet? Drawdown time less than 72 hours? Positive overflow from system? Erosion and sedimentation control? Feasible construction process and sequence? Geotextile specified? Pretreatment provided? Clean, washed, open-graded aggregate specified? Stable inflows provided (infiltration basin)? Appropriate perforated pipe, if applicable? Appropriate plants selected, if applicable? Observation well/clean out provided, if applicable? Maintenance accounted for and plan provided? LID Manual for Michigan – Chapter 7 Page 217
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A Design Guide for Implementers and
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LID Manual for Michigan Page ii
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Shawn Keenan, City of Auburn Hills
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Appendix G: Stormwater Management P
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Figure 7.18 Filter with infiltratio
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Table 7.9 Definitions of Wetland Ve
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How this manual is organized This m
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discuss a new development. The staf
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In a natural woodland or meadow in
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Almost all components of the urban
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Benefits of implementing LID Implem
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Table 2.2 Summary of Cost Compariso
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Getting started with LID LID can be
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Precipitation also varies slightly
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Figure 3.4 Soil Freezing in Lower M
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Figure 3.6 Michigan Surficial Geolo
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Most soils in Michigan are classifi
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Table 3.3 Representative Cation Exc
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There is currently no single broadl
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Wellhead protection areas/ public w
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Table 3.4 Michigan Rivers and Strea
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References * Bailey, R.M and G.R. S
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LID Manual for Michigan - Chapter 3
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Following are sample goals and poli
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Develop regulations that encourage/
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Construction activity • Minimize
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Street sweeping in Bloomfield Towns
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Resistance from internal sources an
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Site constraints that may pose chal
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Entity Stormwater Jurisdiction Coun
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Step 1: Property acquisition and us
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can be incorporated into the develo
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Step 3: Integrate municipal, county
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BMP Selection Process This chapter
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Case Study: Title The second page o
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Case Study: Pokagon Band of Potawat
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Figure 6.2 Conventional development
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Designer/Reviewer Checklist for Clu
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Case Study: Minimizing soil compact
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4. Topsoil stockpiling and storage
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References Hanks, D. and Lewandowsk
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Case Study: Longmeadow Development
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Applications Minimizing the total d
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Criteria to Receive Credits for Min
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Case Study: Marywood Health Center
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Design Considerations 1. Identify n
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References Center for Watershed Pro
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Case Study: Macomb County Public Wo
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Zone 3: Also termed the “outer zo
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• Limit clearing and grading of f
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Case Study: Western Michigan Univer
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Protection of sensitive areas in re
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then weightings of potential develo
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Floodplains • Design the project
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References Arendt, Randall G. Growi
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Case Study: Willard Beach Implement
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Table 6.2 Narrow residential street
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Parking Parking lots often comprise
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Designer/Reviewer Checklist for Red
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Case Study: Saugatuck Center for th
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In addition to directing runoff to
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Designer/Reviewer Checklist for Dis
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Runoff Volume/ Infiltration Runoff
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Figure 7.1 Structural BMP Selection
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In general, the techniques describe
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Table 7.3 Additional BMP considerat
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Maintenance Provides guidance on re
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Case Study: Grayling Stormwater Pro
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Figure 7.5 illustrates a schematic
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Flow inlet: Curbs and curb cuts Cur
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Roads and highways Figure 7.13 show
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Design Considerations Bioretention
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7. Planting periods will vary but,
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Construction Guidelines The followi
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Designer/Reviewer Checklist for Rai
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Case Study: Stormwater Capture with
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Ford Rouge Plant cistern Vertical s
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Design Considerations Design and in
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the tank can accommodate.) (www.sta
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References “Black Vertical Storag
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Case Study: Constructed Linear Sand
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Surface non-vegetated filter A surf
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Large subsurface filter Large Subsu
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would modestly increase constructio
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Page 180 and 181: References Atlanta Regional Commiss
Page 182 and 183: Site Factors Type Basin Bottom Rela
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Page 186 and 187: Variations For this manual, detenti
Page 188 and 189: Precast concrete vault Source: Amer
Page 190 and 191: surface into the pond to a maximum
Page 192 and 193: sink for pollutants and generally h
Page 194 and 195: The presettlement and post-developm
Page 196 and 197: wet pond and constructed wetland op
Page 198 and 199: ackfilling operation should driven
Page 200 and 201: Designer/Reviewer Checklist for Dry
Page 202 and 203: Designer/Reviewer Checklist for Con
Page 204 and 205: References AMEC Earth and Environme
Page 206 and 207: Key Design Features • Depth to wa
Page 208 and 209: Case Study: Saugatuck Center for th
Page 210 and 211: Infiltration basins, subsurface inf
Page 212 and 213: Figure 7.24 Cross-section of dry we
Page 214 and 215: • The soil mantle should be prese
Page 216 and 217: Additional design considerations fo
Page 218 and 219: • Though roofs are generally not
Page 220 and 221: Subsurface infiltration bed Source:
Page 222 and 223: Stormwater Functions and Calculatio
Page 224 and 225: • Protect the infiltration area f
Page 226 and 227: Additional Construction Guidelines
Page 230 and 231: References AMEC Earth and Environme
Page 232 and 233: LID Manual for Michigan - Chapter 7
Page 234 and 235: Case Study: Washtenaw County West S
Page 236 and 237: Design Considerations Level spreade
Page 238 and 239: 3. Inspect the filter strip and the
Page 240 and 241: References Hathaway, Jon and Hunt,
Page 242 and 243: Case Study: Black River Heritage Tr
Page 244 and 245: Figure 7.31 Native meadow species c
Page 246 and 247: Applications • Residential - Nati
Page 248 and 249: 5. Amend soil: In those sites where
Page 250 and 251: Water quality improvement Landscape
Page 252 and 253: References Arendt, R. Growing Green
Page 254 and 255: Case Study: Grand Valley State Univ
Page 256 and 257: Staging, construction practices, an
Page 258 and 259: Reinforced turf/gravel Reinforced t
Page 260 and 261: 4. Pervious pavement and infiltrati
Page 262 and 263: 12. Proper pervious pavement applic
Page 264 and 265: Figure 7.40 Open-graded, clean, coa
Page 266 and 267: Repairs • Surface should never be
Page 268 and 269: References Adams, Michele. “Porou
Page 270 and 271: Case Study: Michigan Avenue Streets
Page 272 and 273: Native vegetation should be used in
Page 274 and 275: Design Considerations • Suggested
Page 276 and 277: oxes, etc. should be installed in a
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References Stormwater Management Gu
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Case Study: Nankin Mills Interpreti
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Figure 7.45 Schematic of a three-zo
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3. Analyze site’s vegetative feat
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Black River Heritage Trail and Wate
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Table 7.14 Tree spacing per acre Sp
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4. Stable debris As Zone 1 reaches
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References Alliance for the Chesape
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Case Study: Ann Arbor District Libr
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• Major compaction - Deep compact
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e. Add six inches compost or other
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References “Achieving the Post-Co
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Case Study: Wayne County, MI Ford R
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slope needs to be determined. This
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Figure 7.52 Sandy soils with HSG Gr
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Figure 7.56 Clay Loam, Silty Clay o
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• Guidance information, usually i
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Case Study: City of Battle Creek Ci
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Table 7.16 Vegetated roof types Ext
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Dual media assemblies Dual media (F
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Over a period of time roots can dam
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Technical requirements Root resista
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Stormwater Functions and Calculatio
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Designer/Reviewer Checklist for Veg
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Case Study: Meadowlake Farms Bioswa
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lower flows (two-year storm) to dra
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Stone check dams Source: Road Commi
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Table 7.18 Permanent stabilization
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Peak rate mitigation Vegetated swal
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Designer/Reviewer Checklist for Veg
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Case Study: LaVista Storm Drain Pro
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Basket type inserts Basket type ins
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Maintenance is crucial to the effec
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Roadway design, construction, and m
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• Vegetated systems such as grass
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Of the options explored, the study
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Figure 8.3 Tree planting detail Sou
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Opportunities for MPOs Metropolitan
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Construction on the project began i
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The following are examples of imple
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Horizontal grates can be added to a
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East Hills Center City of Grand Rap
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Implementing LID in High Risk Areas
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References AASHTO Center for Enviro
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LID Design Criteria Defining the hy
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Flood control Flood control is base
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Table 9.1 90 Percent Nonexceedance
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Initial abstraction (I a ) includes
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The Curve Number Method is less acc
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I = the average rainfall intensity
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Table 9.4 Rainfall Events of 24-Hou
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• Proceed to Flow Chart B, Peak R
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FLOW CHART A Stormwater Calculation
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Excessively drained soils may requi
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Worksheet 2. Sensitive Natural Reso
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WORKSHEET 4. Calculations for Volum
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WORKSHEET 6. SMALL SITE / SMALL IMP
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WORKSHEET 8. WATER QUALITY WORKSHEE
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Reese, S. and J. Lee. “Summary of
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ing Department. Most maintenance co
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The Hydrotech Garden Roof Assembly
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Bioswales provide infiltration of s
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The Ingham County Drain Commissione
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Constructed wetland The lowest port
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LID Manual for Michigan - Appendix
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Check dam Cistern Clustering Combin
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H:V Horizontal to vertical ratio. H
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Planter box Pervious pavement Phase
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Total phosphorous (TP) The total am
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Ecoregion recommendations are also
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Zone A Planting Zone = two-to-four
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Zone C Planting Zone = zero-to-two
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Representative Zone C Species Cardi
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Botanical Name Common Name Height C
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Zone E Planting Zone = four-to-18 i
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Representative Zone E Species Tall
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Botanical Name Common Name Height C
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Zone G Planter Box Plantings Althou
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Zone H Vegetated Roof Plantings Res
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Pervious Berms (Vegetated Filter St
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Vegetated roofs Some key components
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Step 1. Background evaluation Prior
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Methodology for double-ring infiltr
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Step 4. Use design considerations p
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Detention BMP Inspection Checklist*
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Infiltration BMPs Inspection Checkl
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Bioretention Inspection Checklist*
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Bioswale, Filter Strip Inspection C
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6. The [Community] or its designee
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STATE OF MICHIGAN ) ) ss. COUNTY OF
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Exhibit B - Location Map (Sample) S
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• Stormwater runoff, soil erosion
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Retention. A holding system for sto
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ARTICLE IV. STORMWATER PLAN REQUIRE
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The particular facilities and measu
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10. Rainfall Frequency Atlas of the
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Table H.2 Pre-Treatment Options for
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f. Complete development agreements
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must be submitted to the Michigan D
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C. Construction Plans shall be revi
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fine for each day. The rights and r
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Southeast Michigan Council of Gover
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