I had a fence to build! The details, materials, and design were fleshed out. I was itching to to convert the theory into an actual, built product.
The fence posts were in place, which allowed us to install the bottom and top rails. Because the bottom rail will sit right at the pavement edge, we had to excavate a little more along the sidewalk. The curb side edge was already excavated from our paver edge installation.
We cut the top and bottom two by four rails to length and attached them with structural connectors to the posts. At the same time, we pre-drilled the two by two rails that will hold the rebar and attached them to the back of the two by four rails.
I chose to only install the fence rails around the perimeter, because I still have to excavate for the rain garden. That will be easier to do if I can move up and down the parkway and in and out at the path crossings.

Does runoff from the sidewalk and/or street drain to these parkway rain gardens?
Yes. The sidewalk will contribute a little, but the majority of stormwater will come from the street gutter. Stay tuned, there will be a blog post designated just to that topic.