Your input on this and where you think parking and restrooms should be provided can be given electronically until November 12 at this link.
The County's Trail Master Plan site will be increasingly of interest to residents.
On 12/1, Bellevue City Council included in the budget for next year:
“purchase or lease of a portion of the abandoned BNSF railroad corridor ($1 million)”
Although there are no specific plans on what parcel needs to be purchased, it is an indication of City commitment to be part of the Eastside Rail Corridor Regional Advisory Committee and be a player in the issue.
There are many, many areas of the corridor where over the past one hundred years, residents have "encroached" upon the designated railroad right of way. The County clearly intends to claim the full width even though it isn't required for the trail. Major segments of roadways are in the ROW and the County will attempt to assert "Special Use Fees." This issue will need to be resolved in the courts. The County's analysis of these constraints may be viewed here.