This dam is at the end of a very pleasant walk, and is well worth the effort to get there. They are doing a lot of construction and other works to the dam and to the river course, so it may look like a worksite, but it is still a pleasant destination
Hiking through Amagase Dam seems a very local thing to do in Uji as not so many tourists were visiting the Dam at the time we visited.
It is a bit steep to cycle to the up, but it is possible to hike inside the Dam.
If you are get tired of walking in crowded streets of Uji, just go...