[GWN7]

When you get the permit the city will tell you if they want rebar or not.

They might want you to use a concrete saw to make a clean cut edge along where you want to replace the existing curb. You would jackhammer the existing lip off then use the concrete saw to scribe a line along the curb and then remove the rest of the curb material down to the base. This makes for a smooth finished line against the roadway.

To tie into the existing roadway they make small concrete drills to bore into the existing slab and then rebar pins are inserted with grout. Then after those dry you can add rebar to the cut.

Mostly no to rebar, altho I have built curbs that were spec'ed for it and did put it in.