The ramp you were thinking of on the oregon side is the gleason street ramp, where the river patrol has their office. That is where the officers told me it wasn't safe to leave your vehicle over night. Overnight parking is what I was looking for. At this point Kalama and Cathlamette seem to be the only relatively safe places to leave your vehicle overnight. Haven't been to Chinook Landing to park yet but would consider it. I will be up there today and will look it over. Thanks for the info.