Roller coaster construction

I'm a construction management major in college and I just wanted to know if any of you had any information on what contractors Cedar Point has used in the past, and more specifically on who they currently use, in building the roller coasters and the stations, etc. I know Adena has constructed a few of the stations, I believe for Top Thrill Dragster and another, but I haven't been able to find any more information on general contractors they use, or even who other parks in the area have used. I know about the manufacturers of the rides, but I want to know specifically about the erecting of the rides. Any info would be nice. Thanks.

Adena has been used for most (if not all) of the steel erection at the park after their work on TTD's station. I know they have also been used for steel erection at other parks in the Cedar Fair chain as well.

Possibly try Mosser... I have seen mosser trucks in the past at cp but i don't know if they actually construct rides or buildings.

^^They have been the general contractor for years but have they also been doing the steel erection for projects? I can't remember the name but I am pretty sure the steel erecting company used for Dragster was from Canada.

Adena seems to be the primary contract for projects around the park, mostly the larger ones but a lot of sub-contractors or smaller companies are used for the smaller projects.