Portland Community College | Portland, Oregon

Course Number:
LAT 232
Course Title:
Landscape Irrigation II
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:

Course Description

Information and calculations needed to layout and draw irrigation plans for conventional spray and drip systems. Irrigation controller programming and auditing. Prerequisites: LAT 108, LAT 236; or department permission. Audit available.

Addendum to Course Description

Students will measure a site, record hydraulic data and draft an irrigation design incorporating spray and drip zones accompanied by an estimate. A water audit of an existing system will also be conducted. Drafting skills are helpful but not required. A thorough knowledge of irrigation components is essential.

Intended Outcomes for the course

  • Understand hydraulics and how it affects a zone's performance.
  • Understand the steps involved in producing an irrigation plan.
  • Draft a hydraulically correct and water efficient irrigation plan.
  • Estimate an installation price for a construction plan.
  • Conduct a water audit.

Outcome Assessment Strategies

  • Written mid-term and final exams.
  • Projects: irrigation plan, cost estimate, water audit
  • Written Exercises

Course Content (Themes, Concepts, Issues and Skills)

  • Hydraulics
  • Selecting and Locating Sprinkler Heads
  • Valve Placement and Circuiting
  • Pipe Sizing
  • Irrigation Plan Drafting
  • Microirrigation Components and Design
  • Irrigation Estimation
  • Water Auditing