Pacific Corp is appealing a ruling that the entire site and not just the dam and powerhouse is an historic landmark.
Commissioner Alan Unger went to the site last week, along with fellow Commissioner Tammy Baney.
"We got the opportunity to see how the development started in 1918, when they diverted water to the dam then, flume and to the penstock to where electricity was developed. A lot of equipment is gone. We did get a good view that will help me make a good decision."
Pacific Corp is appealing the site's historic decision becuase they are facing potential fines for removing some generating equipment from the site.
Commissioners expect to make a decision by the end of this month.