DRIP IRRIGATION STUDY. FINAL REPORT

The use of drip emitters to irrigate highway landscaping helps to conserve two of our critical resources, water and energy. The California Department of Transportation used drip emitters for many projects during the 1970's and early 1980's. The use of drip emitters has decreased since 1980 because of clogging problems. Transportation Laboratory personnel conducted a study to determine the causes of emitter clogging. Three field locations were selected to study these problems. The primary water quality parameters selected for this study were total dissolved solids and turbidity. As a result of studies at these three sites and other field investigations, it was found that waters containing high levels of total dissolved solids and that were given continuous chemical treatment created the most severe emitter clogging problems. Most of the flow reduction occurred after the watering schedule was changed to twice per week for a total of 10.5 hours per week.

• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bakker, T
  • Ehsan, J
• Publication Date: 1987-11

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Field studies; Irrigation; Landscape maintenance; Turbidity; Water conservation; Water quality
• Uncontrolled Terms: Clogging
• Old TRIS Terms: Drip emitters
• Subject Areas: Design; Environment; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00478027
• Record Type: Publication
• Report/Paper Numbers: FHWA/CA/LA-87/01, Rept No 53-627141
• Contract Numbers: F78LA14
• Files: TRIS, USDOT, STATEDOT
• Created Date: Dec 31 1989 12:00AM