Observe. Integrate. Design

Module 09 / 25

Earthworks

Young orchard trees, mulched beds, and paths beside a woodland edge.

Topics

  • Keyline design, micro-catchments, gabions, and check dams
  • Use of levelling instruments and construction of swales
  • Design and construction of earthen dams and ponds

What you’ll learn

Learning goals

  • How to channel and store runoff by proper location and building of these elements

Read, watch & explore

Getting the books · access & editions

Use your own copy, buy the book, or borrow it through a library when possible. If you are local to me, contact me about borrowing a copy. You can also contact me for information about digital or other access to assigned readings.

Ask about reading access ↗

If your edition uses different page numbers, contact me and we can match the correct section. Contact instructor.

Water and earthworks readings

Book reading

The Permaculture Earthworks Handbook

Douglas Barnes

Pages 48 to 51: Levelling instruments, especially “A-Frame” on Page 51

Pages 79 to 80: check dams and gabions

Pages 109 to 110: dryland microcatchments

Pages 38 to 39: Permission and planning — read before considering construction

Book access & editions

Book reading

The Resilient Farm and Homestead

Ben Falk

Pages 128 to 163: water and earthworks

Book access & editions

Contours, swales, and ponds

Watch

Don Tipping Keyline Design Video

YouTube

Watch on YouTube

If the player does not load, use the source link.

Watch

Natural Sealing of Ponds

YouTube

Watch on YouTube

If the player does not load, use the source link.

Watch the Don Tipping Keyline Design video for the larger design context. Use the linked contour and swale resources in this module for the practical overview.

Calibrate and use your A-frame

For the contour exercise, use a stable A-frame with a freely hanging string and weight. Mark where both feet stand. Mark the string position on the crossbar, exchange the feet on those same ground marks, and mark again. Halfway between the marks is the level reference. Recheck calibration before use. On a gentle, accessible site, mark a short sequence of equal-height points, check it again, and transfer it to your map. Record one source of measurement uncertainty.

Dams, drainage changes, and infiltration earthworks need site-specific assessment, appropriate permissions, and qualified design where necessary.

Exercise & discussion

Exercise: A-Frame Contour Mapping Exercise: Follow the calibration and mapping instructions in the study guide. Record the contour on your site map.

Readings & resources

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