Snapshots of Pai

EN: The Mae Yen Weir

Pai has 3 distinct seasons. The rain, the the dry (or cold season) and the hot season.

In order to keep the water flowing year round to irrigate the crops in the Pai River valley, engineers have constructed a series of weirs to dam up the streams flowing out of the mountains because the dry can last up 6 months.

There is an architectural marvel located on the way to Hua Chang waterfall on the Pai Beverly Hills road and another interesting one located at Happy Mountain (I wonder why they call it that) or the old jungle party rave site.

The below photograph was taken from the weir looking back at Happy Mountain early in the morning.

The Pai Explorer Map & Blog

Happy Mountain (I Wonder Why they Call it That)

A weir is basically a huge barrier that dams up water till it reaches the top. Once it reaches the top water flows over providing a trickling stream. What the weir does is allow pressure to build up and the water redirected to an irrigation channel to serve the crops in the area.

The Pai Explorer Map & Blog

The Irrigation Channel the Mae Yen Weir Supply’s

About the Author


Galletto is a surprisingly accurate yet indolent journalist that volunteers as a part time guest writer for the Pai Explorer Map & Blog.