After researching, I could not find any information about a boat ramp named Aldervale in Oregon with the provided coordinates. It is possible that the name or location has changed, or that the information is outdated. Therefore, I am unable to discuss the specifics of this boat ramp.
| NEHALEM RIVER NEAR FOSS | 16400cfs |
| WILSON RIVER NEAR TILLAMOOK | 6610cfs |
| TRASK RIVER ABOVE CEDAR CREEK | 4970cfs |
| NEHALEM RIVER NEAR VERNONIA | 1240cfs |
| TUCCA CREEK NEAR BLAINE | 92cfs |
| NESTUCCA RIVER NEAR BEAVER | 5540cfs |