I was thinking if it let water perk through the sides of the new catch basin it would drain water through the fill as well as surface water entering through a top grate.
Do you get ice and snow? That can be a game changer when designing such things. Spring thaw and all.
Personally, I am doing something similar and totally unable to find any surplus concrete storm catch basins or cast sewer grates. Frustrating!
There won’t be any trouble with authority here.Let me ask you this? Is that your land or right of way? I know our municipality is very sticky over such matters. A friend and neighbor wanted to fill in a slight ditch to gain better access to a field and the municipality said no way. Excavate and put in a culvert (at your expense) , if you want to have a level approach.
My thought was a vertical perforated pipe surrounded by large gravel that water could flow through.If I was going to do something like that I would lay a perforated pipe with gravel over and under in the existing swale pitched toward the catch basin (riser)...so it flows into it...(i.e., dry-well)