Headwall

Headwall and corrie lake Cwm Idwal

In physical geography and geology the headwall of a glacial cirque is its highest cliff. The term has been more broadly used to describe similar geomorphic features of non-glacial origin consisting of a concave depression with convergent slopes typically of 65 percent or greater forming the upper end of a drainage valley.[1]

In civil engineering, a headwall is a small retaining wall placed at the outlet of a stormwater pipe or culvert.[2]

References

  1. ↑ California Geological Survey. "Timber Harvest Plan Review Workshop" (PDF). State of California. Retrieved 6 October 2015.
  2. ↑ Local Government & Municipal Knowledge Base


This article is issued from Wikipedia - version of the Tuesday, October 06, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.