Grid fill help


I’m trying to grid fill this…the reason for that many vertices is due to me grabbing the edge of the road, duplicating it and separating it so I can fill the center with topology.
Grid fill isnt working, telling me to “select two edge loops or a single closed edge loop from which two edge loops can be calculated”, the edge is fully closed, did a merge vertices to be sure but dunno what else to do…
I just want the center filled with good topo for geo-scatter and weight painting pretty much…

I’ve never modeled anything before so completely lost…

Welcome!

If grid fill doesn’t work, it means you have the wrong number of vertices for making a grid. Add 1 vertex somewhere and it should work. You may need to adjust the settings manually with that many sides.

Hi!
That did it…honestly would’ve never guessed it by myself. Now to fix the topo mess,
Thank you so much!