Master plan for this park that may be useful in future updates (e.g. when walking paths and parking are added) is at https://www.cityofboise.org/media/14722/primrose-park_mp-1.pdf

"Spoil Banks" appears in a 2020 preliminary plat for Greenbanks Sub I was reviewing. USGS map for Eagle ID, as old as 1953, also label it as "Spoil Banks." There are recent refs in Boise PDS memos, since the canal's of concern in Northwest neighborhood planning, and ACHD plans, although sometimes as "Spoils Bank" or "Spoils Banks."

It is actually signed "Access Road" with a private-road style street sign. I observed this in person but I suspect it can be seen in Google Street View from Oliver Ave.

Thanks. I knew this, but it looks like I missed hitting Q on one.

I was wondering about that myself. Wiki seemed to indicate access was more of a default when used in combination with other specific permissions. e.g. "access=no, foot=yes, bicycle=yes" in a couple of these cases. I can definitely change these, but especially when they're signed "pedestrian access only" I felt the specific permissions were the key thing.

There's a warning about an unattached highway feature (a crossing with speed table) east of Glenwood off State St here. node/6030851939. I don't think there's a speed table there, even the driveways are pretty flat. This changeset was pretty big and I can't quite figure what you intended to do with that node... clarify/fix or delete?