Cutting Asphalt

[gsmittle]

I need to cut a rectangular hole for a drain in my driveway. It’s about four inches thick. I don’t know the size of the hole I need because I haven’t bought the drain yet. What suggestions does the Brain Trust here have for cutting the hole.

More details: No cars park where the drain hole will be. There is compacted gravel under the asphalt, and drains under that.

Many thanks!

[Black walnut]

Rented concrete saw.

[capncarl]

What happens when you get the hole cut? What does the drain connect to?
It’s hard to cut a square or rectangular hole in paving. As Black Walnut said, rental concrete saw, 4” of packed asphalt is hard to dig out. .