I frequently see 2 or 3 Class As and Fifth Wheels camping within 3 feet of the trail in the back side of the Valley River Center mall parking lot. Other than that I'm not aware of any official campgrounds that are close.
Eugene is not very RV friendly. There is one park north of town and one south of town.
There are hundreds of miles of jogging and bicycle trails thou.
I (2-10-05) bought a 2002 F350 CC SWD PSD and a new 2003 Citation 10'8. Rancho 9000X & Toyo M55's.I have been a tent camper all my life. I wanted more comfort while doing my Willamette Backcountry Ski Patrol & Crater Lake Ski Patrol duties.11