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

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Detention BMP Inspection Checklist* Project Location: ______________________________________________________________________________ Date/Time: __________________________________________________________________________________ Inspector: ____________________________________________________________________________________ Maintenance Item Inlet/Outlet Pipes Structural integrity of inlet/outlet (Are any inlet pipes broken, crumbling, separated?) List Inlet Pipes Approximate Diameter and Type of Material Inlet Pipe 1 _____________________________ Inlet Pipe 2 _____________________________ Inlet Pipe 3 _____________________________ Outlet Pipe Size/Type ______________________ Riprap at inlet pipe (Is the riprap still present? Is it visible and not covered with sediment? Stone around outlet pipe (Is the stone clogged with debris and/or sediment?) Trash or debris blocking inlet/outlet (Inspect to ensure no major obstructions hindering general functionality) Inspect/clean catch basin upstream of the BMP if accessible. Inspect inlets and outlet for erosion (Are there eroded areas around the pipes?) Inspect overflow spillway for signs of erosion. Satisfactory/ Unsatisfactory Recommended Inspection Frequency Comments Pretreatment (if applicable) (Might include sediment forebay, upstream catch basin, bioswale, rain garden, swirl concentrator) Device functioning to trap/collect sediment A Remove accumulated sediment as appropriate for the pretreatment device. forebay Detention Pond A Inspection frequency key — A = Annual, M = Monthly, S = After major storm *It is recommended to review and inspect the basin with the engineering as-built plans. LID Manual for Michigan – Appendix F Page 446 A A A M A A A
Maintenance Item Inspect side slopes, berms and emergency overflow for erosion Reestablish permanent native vegetation on eroded slopes Inspect for excess sediment accumulation in pond if not pretreatment device is present Overall functionality Ensure pond is functioning properly (Professional Civil Engineer is recommended) Ensure the outlet is functioning properly (Professional Civil Engineer is recommended) Optional/Enhancements Maintain 15-20 feet “no mow and chemical free” zone Satisfactory/ Unsatisfactory Recommended Inspection Frequency Comments LID Manual for Michigan – Appendix F Page 447 A As needed Mow (or burn) the “no mow” zone A Inspect basin and “no mow” zone for invasive species. Qualified professional applicator selectively herbicide invasive species Increase plant diversity by planting additional vegetation in and around pond. Complaints from residents (note on back) S Encroachment on pond/no- mow zone. A Unauthorized plantings A Aesthetics (e.g., graffiti, unkept maintenance) A Inspection frequency key — A = Annual, M = Monthly, S = After major storm *It is recommended to review and inspect the basin with the engineering as-built plans. Summary Inspector’s remarks: __________________________________________________________________________ ___________________________________________________________________________________________ Overall condition of facility (acceptable or unacceptable): ____________________________________________ Dates any maintenance must be completed by: _____________________________________________________ Inspection frequency key — A = Annual, M = Monthly, S = After major storm *It is recommended to review and inspect the basin with the engineering as-built plans. A A A A A A A
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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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During inspection the following con
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References Atlanta Regional Commiss
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Site Factors Type Basin Bottom Rela
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Variations For this manual, detenti
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Precast concrete vault Source: Amer
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surface into the pond to a maximum
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sink for pollutants and generally h
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The presettlement and post-developm
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wet pond and constructed wetland op
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ackfilling operation should driven
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Designer/Reviewer Checklist for Dry
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Designer/Reviewer Checklist for Con
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References AMEC Earth and Environme
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Key Design Features • Depth to wa
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Case Study: Saugatuck Center for th
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Infiltration basins, subsurface inf
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Figure 7.24 Cross-section of dry we
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• The soil mantle should be prese
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Additional design considerations fo
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• Though roofs are generally not
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Subsurface infiltration bed Source:
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Stormwater Functions and Calculatio
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• Protect the infiltration area f
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Additional Construction Guidelines
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Designer/Reviewer Checklist for Inf
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References AMEC Earth and Environme
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Case Study: Washtenaw County West S
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Design Considerations Level spreade
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3. Inspect the filter strip and the
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References Hathaway, Jon and Hunt,
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Case Study: Black River Heritage Tr
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Figure 7.31 Native meadow species c
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Applications • Residential - Nati
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5. Amend soil: In those sites where
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Water quality improvement Landscape
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References Arendt, R. Growing Green
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Case Study: Grand Valley State Univ
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Staging, construction practices, an
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Reinforced turf/gravel Reinforced t
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4. Pervious pavement and infiltrati
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12. Proper pervious pavement applic
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Figure 7.40 Open-graded, clean, coa
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Repairs • Surface should never be
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References Adams, Michele. “Porou
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Case Study: Michigan Avenue Streets
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Native vegetation should be used in
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Design Considerations • Suggested
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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
Page 408 and 409: Constructed wetland The lowest port
Page 410 and 411: LID Manual for Michigan - Chapter 1
Page 412 and 413: LID Manual for Michigan - Appendix
Page 414 and 415: Check dam Cistern Clustering Combin
Page 416 and 417: H:V Horizontal to vertical ratio. H
Page 418 and 419: Planter box Pervious pavement Phase
Page 420 and 421: Total phosphorous (TP) The total am
Page 422 and 423: Ecoregion recommendations are also
Page 424 and 425: Zone A Planting Zone = two-to-four
Page 426 and 427: Zone C Planting Zone = zero-to-two
Page 428 and 429: Representative Zone C Species Cardi
Page 430 and 431: Botanical Name Common Name Height C
Page 432 and 433: Zone E Planting Zone = four-to-18 i
Page 434 and 435: Representative Zone E Species Tall
Page 436 and 437: Botanical Name Common Name Height C
Page 438 and 439: Zone G Planter Box Plantings Althou
Page 440 and 441: Zone H Vegetated Roof Plantings Res
Page 444 and 445: Pervious Berms (Vegetated Filter St
Page 446 and 447: Vegetated roofs Some key components
Page 450 and 451: Step 1. Background evaluation Prior
Page 452 and 453: Methodology for double-ring infiltr
Page 454 and 455: Step 4. Use design considerations p
Page 460 and 461: Infiltration BMPs Inspection Checkl
Page 462 and 463: Bioretention Inspection Checklist*
Page 464 and 465: Bioswale, Filter Strip Inspection C
Page 468 and 469: 6. The [Community] or its designee
Page 470 and 471: STATE OF MICHIGAN ) ) ss. COUNTY OF
Page 472 and 473: Exhibit B - Location Map (Sample) S
Page 490 and 491: • Stormwater runoff, soil erosion
Page 492 and 493: Retention. A holding system for sto
Page 494 and 495: ARTICLE IV. STORMWATER PLAN REQUIRE
Page 496 and 497: The particular facilities and measu
Page 498 and 499: 10. Rainfall Frequency Atlas of the
Page 500 and 501: Table H.2 Pre-Treatment Options for
Page 502 and 503: f. Complete development agreements
Page 504 and 505: must be submitted to the Michigan D
Page 506 and 507: 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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