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Underground Outlet

A slotted riser that connects to an underground outlet

Practice Code: 620
Reporting Unit: Feet (Ft.)

An underground outlet is a conduit installed beneath the surface of the ground to collect surface water and convey it to a suitable outlet.

Purposes and Benefits

  • Disposes of excess water collected by erosion control structures
  • Helps to prevent gully erosion
  • Improves crop yields
  • Improves water quality by helping to divert clean water to a safe outlet

Ground Disturbing Potential of Conservation Practices

This is a potential ground disturbing conservation practice. Any project with ground disturbing or potential ground disturbing practices planned may need to be submitted for review by the State Historic Preservation Officer and Tribal Historic Preservation Officers. Please see the Cultural Resources Review Process Flowchart for an outline of this process. View a list of conservation practices used in New York State, and their ground disturbing potential.   

Conservation Practice Documents

Web link image: Field Office Technical GuideDocuments associated with this and other conservation practices are available at the NRCS Field Office Technical Guide web site.


Related Conservation Practices

This practice is commonly used in a Conservation Management System with practices such as:

Diversion (362)
Grassed Waterway (412)
Lined Waterway or Outlet (468)
Roof Runoff Structure (558)
Subsurface Drain (606)
Terrace (600)

If you want to learn how you can protect natural resources on your farm or forest land, please contact your local NRCS Service Center.


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