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Commercial Lot Grading As-Built Plan Requirements

Commercial Lot Grading Plan Requirements

#1 - Basic Information

  • Contact information for permit application (name, phone number, email)
  • Contact information for consultant (Engineer, Architect)
  • Permit number (Development Permit or Building Permit)
  • Municipal address
  • Legal address
  • Neighbourhood name and phase
  • Datum information
  • North arrow
  • Legend
  • Date of survey

#2 - Lot Grading & Drainage

  • Drainage pattern shown with arrows for entire site
  • Slope percentages and proposed elevations:
    • All corners of the parcel
    • Throughout the entire body of the parcel
    • Along property lines (break points)
  • Existing elevations:
    • Existing infrastructure (sidewalks, PULs, top of curbs, swales, services)
  • Identify status of adjacent parcel
    • Existing business, vacant, under construction
  • Precise location of proposed building relative to property lines

#3 - Grades at Buildings

  • Proposed elevations:
    • Along all edges of the foundation for the primary building
    • Along all edges of any accessory buildings

#4 - Drainage Easements (if applicable)

  • Drainage pattern shown with arrow
  • Slope percentage
  • Proposed elevations of the swale
  • Detail of swale
  • Registered Plan Number
  • Existing elevations:
    • Fence, concrete, swale, etc.

#5 - Foundations

  •    Proposed elevations:
    • Top of foundation
    • Bottom of foundation
    • Final grade at foundation

#6 - Stormwater Management

  • To be in accordance with Section 12 of the Engineering Design Manual
  • Discuss with the Lot Grading Coordinator to determine if on-site stormwater detention is required.
  • Stormwater calculations using the Rational Method:
    • Total area of site including breakdown of each surface type and relevant coefficient (grass, concrete, roof, pavement, etc.)
    • Total volume of stormwater required to be detained
    • Actual volume of stormwater detained on-site including a breakdown of each catchment area
    • Orifice details
    • Allowable release rate
    • Actual release rate
  • Overland:
    • Ponding extents in a 1:100 year storm event
    • Overflow elevations identified
    • Maximum ponding depth
    • Overland flow route marked by arrows
    • Critical swales identified

#7 - Certification

  • Certification by an Alberta Land Surveyor, Registered Architect or Professional Engineer
    • Includes signature and stamp
  • Notes to be included:
    • Subject to the acceptance of the local approving authority
    • Complies with all instruments of the Lot Grading Bylaw C-1240 and Drainage Bylaw C-1241

Commercial Lot Grading As-Built Plan Requirements

#1 - As-Built Lot Grading & Drainage

  • As-built and proposed drainage pattern shown with arrows
  • As-built and proposed slope percentages:
    • Along property lines (break points)
  • As-built and proposed elevations:
    • All corners of the parcel
    • Throughout the entire body of the parcel
    • Along property lines (break points)
  • Existing elevations:
    • Existing infrastructure (sidewalks, PULs, top of curbs, swales)
  • Identify status of adjacent parcel:
    • Existing business, vacant, under construction
  • Precise location of proposed building relative to property lines

#2 - As-Built of Building

  • As-built and proposed elevations:
    • Grade at edges of all primary and accessory buildings
    • Top of all foundation walls
    • Top of all building slabs

#3 - As-Built of Drainage Easements (if applicable)

  • As-built and proposed drainage patterns shown with arrows
  • As-built and proposed slope percentages
  • As-built and proposed elevations of relevant swales
  • Registered Plan Number

#4 - Foundations

  • As-built elevations:
    • As-built top of foundation
    • As-built bottom of foundation
    • As-built final grade at foundation

#5 - Stormwater Management

  • As-built total volume of stormwater detained
  • As-built orifice details
  • As-built release rate
  • As-built ponding extents in a 1:100 year storm event and maximum ponding depths
  • As-built overland flow route(s) marked by arrows
Last updated: 12/15/2016 10:27:28 AM