Although there is power plant in the river Huglaelvi the Huglaelvi receives enough water to create the Huglafossen. Although it is an unknown waterfall it looks okay. I found one picture of an article about a tragedy with a hurdle.
The waterfall can be found near Vik in the Ovrisdalen. From Vik (road 13) take road 121 until the Huglafossen show up after 4 km.