Talk:Needle dam

	Engineering portal This article is within the scope of WikiProject Civil engineering, a collaborative effort to improve the coverage of Civil engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Civil engineeringWikipedia:WikiProject Civil engineeringTemplate:WikiProject Civil engineeringCE articles
???	This article has not yet received a rating on the project's importance scale.

Dams High‑importance

	This article is within the scope of WikiProject Dams, a collaborative effort to improve the coverage of Dams on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.DamsWikipedia:WikiProject DamsTemplate:WikiProject DamsDam articles
High	This article has been rated as High-importance on the project's importance scale.

Wiki Education Foundation-supported course assignment[edit]

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 January 2019 and 30 April 2019. Further details are available on the course page. Peer reviewers: Mnelson0.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 05:04, 17 January 2022 (UTC)[reply]

Maintenance[edit]

I imagine that the wooden needles, being immersed in fast-flowing water, need regular replacement -- and that makes maintenance of a needle dam difficult, expensive, and possibly even dangerous.

Can anybody add some insight about this to the article? 71.219.243.234 (talk) 07:17, 13 January 2010 (UTC)[reply]