Site Layout – Distance Measurement and Leveling – Module ID 28306-14

Site Layout – Distance Measurement and Leveling – Module ID 28306-14


Module 28306-14 describes the principles, equipment, and methods used to perform the site layout tasks of distance measurement and differential leveling; the layout responsibilities of surveyors, field engineers, and masons; the use of site plan drawings; and methods used for on-site communication.

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Learning Objective 1 – Describe the elements of site plans and topographic maps.

  • List characteristics of contour lines. Learning Objective 2 • Describe layout control points.
  • Explain how to convert between distance measurement systems.
  • Identify the types of control points.
  • Explain how to place control points and other markers.
  • Describe how to communicate information on control points and other markers.
  • Discuss how control markers are colorcoded.

Learning Objective 3 – Identify distance measurement tools and equipment.

  • Explain how to use tapes.
  • Explain how to use range poles.
  • Explain how to use plumb bobs and gammon reels.
  • Explain how to use hand sight levels.

Learning Objective 4 – Describe how to make distance measurements.

  • Explain how to estimate distances by pacing.
  • Describe how to measure distances electronically.

Learning Objective 5 – Identify differential-leveling tools and equipment.

  • Identify leveling instruments.
  • Describe the use of tripods.
  • Describe the use of leveling rods. d. Explain how to set up and adjust leveling instruments.
  • Explain how to test the calibration of leveling instruments.

Learning Objective 6 – Explain the basics of differential leveling.

  • Define differential-leveling terminology.
  • Explain the differential-leveling procedure.
  • Explain how field notes are recorded and used.

Learning Objective 7 – Identify leveling applications.

  • Explain how to transfer elevations up a structure.
  • Explain profile, cross-section, and grid leveling.

Learning Objective 8 – Describe how to lay out building corners.

  • Explain how to construct batter boards.
  • Describe how to use the 3-4-5 rule.

Performance Tasks

Performance Task 1 (Learning Objective 1) • Interpret a construction site plan and relate the man-made and topographic features and other project information to the layout and topography of the actual site.

Performance Task 2 (Learning Objective 2) • Convert measurements stated in feet and inches to equivalent decimal measurements stated in feet, tenths, and hundredths, and vice versa.

Performance Task 3 (Learning Objective 5) • Set up, adjust, and field-test a leveling instrument.

Performance Task 4 (Learning Objective 5) • Use a builder’s level and leveling rod to determine site and building elevations.

Performance Task 5 (Learning Objective 7) • Use differential-leveling and distance-measurement procedures to transfer elevations up a structure.

Performance Task 6 (Learning Objective 8) • Check and/or establish 90-degree angles using the 3-4-5 rule.


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