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#REDIRECT [[Construction specifications for infiltration ]]
  
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CADD based details for pond systems are contained in the section on [[CADD images for individual best management practices|drawings]]. The following details, with specifications, have been created for infiltration systems:
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*infiltration basin
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*infiltration trench
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*subsurface infiltration system
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*inlet/outlet structures
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==Construction specifications==
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Given that the construction of [[Glossary#I|infiltration]] practices incorporates techniques or steps which may be considered non-standard, it is ''RECOMMENDED'' that the construction specifications include the following format and information.
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===Temporary erosion control===
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*Installation prior to site disturbance
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*Catch [[Glossary#B|basin]]/inlet protection
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*Use of [[Glossary#B|BMP]] as temporary sedimentation basin
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===Excavation, backfill and grading===
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*Timing of grading of infiltration practices (relative to total site development)
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*Use of low-impact, earth moving equipment
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*Controls to ensure site is not over-excavated
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*Restoration in the event of [[Glossary#S|sediment]] accumulation during construction of practice
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*Gravel backfill specifications
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*Gravel filter specifications
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*Filter fabric specifications
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*Observation well specifications
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===Native plants, planting and transplanting===
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*Site preparation of planting areas
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*Timing of native seeding and native planting
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*Weed control
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*Watering of plant material
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{{alert|It is REQUIRED that infiltration systems not be excavated to final grade until the contributing drainage area has been constructed and fully stabilized.|alert-danger}}
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===Construction sequence scheduling===
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*Temporary construction access
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*Location of [[Glossary#S|silt fence]] installation to protect BMPs and downgradient [[Glossary#R|receiving waters]]
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*Removal and storage of excavated material
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*Installation of underground utilities
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*Rough grading
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*Seeding and mulching disturbed areas
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*Road construction
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*Final grading
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*Site stabilization
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*Installation of semi-permanent and permanent [[Glossary#E|erosion]] control measures
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*Silt fence removal (often forgotten but an essential step)
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===Construction observation===
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*Adherence to construction documents
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*Verification of physical site conditions
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*Erosion control measures installed appropriately
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<noinclude>
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==Related pages==
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*[[Overview for Infiltration trench]]
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*[[Types of Infiltration trench]]
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*[[Design criteria for Infiltration trench]]
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*[[Construction specifications for Infiltration trench]]
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*[[Operation and maintenance of Infiltration trench]]
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*[[Assessing the performance of infiltration trenches and basins]]
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*[[Cost-benefit considerations for Infiltration trench]]
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*[[External resources for Infiltration trench ]]
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*[[References for infiltration]]
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[[Category:Level 3 - Best management practices/Specifications and details/Construction specifications]]
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</noinclude>

Latest revision as of 14:46, 11 December 2022

CADD based details for pond systems are contained in the section on drawings. The following details, with specifications, have been created for infiltration systems:

  • infiltration basin
  • infiltration trench
  • subsurface infiltration system
  • inlet/outlet structures

Construction specifications

Given that the construction of infiltration practices incorporates techniques or steps which may be considered non-standard, it is RECOMMENDED that the construction specifications include the following format and information.

Temporary erosion control

  • Installation prior to site disturbance
  • Catch basin/inlet protection
  • Use of BMP as temporary sedimentation basin

Excavation, backfill and grading

  • Timing of grading of infiltration practices (relative to total site development)
  • Use of low-impact, earth moving equipment
  • Controls to ensure site is not over-excavated
  • Restoration in the event of sediment accumulation during construction of practice
  • Gravel backfill specifications
  • Gravel filter specifications
  • Filter fabric specifications
  • Observation well specifications

Native plants, planting and transplanting

  • Site preparation of planting areas
  • Timing of native seeding and native planting
  • Weed control
  • Watering of plant material
Warning: It is REQUIRED that infiltration systems not be excavated to final grade until the contributing drainage area has been constructed and fully stabilized.

Construction sequence scheduling

  • Temporary construction access
  • Location of silt fence installation to protect BMPs and downgradient receiving waters
  • Removal and storage of excavated material
  • Installation of underground utilities
  • Rough grading
  • Seeding and mulching disturbed areas
  • Road construction
  • Final grading
  • Site stabilization
  • Installation of semi-permanent and permanent erosion control measures
  • Silt fence removal (often forgotten but an essential step)

Construction observation

  • Adherence to construction documents
  • Verification of physical site conditions
  • Erosion control measures installed appropriately


Related pages

This page was last edited on 11 December 2022, at 14:46.