Originally Posted by NPV
I think you are referring to the turn off at Surur for the Wai-Surur road (Marked A on the map).
There is another junction about 4-5 Km later at Joshi Wihir (Marked B on the map) which is for SH 72. Any idea how this road is ? (Both these roads meet inside Wai).
The default route to reach Mahabaleshwar from Mumbai/Pune is exit NH4 at a place located above (A) known as "Wai Phata" - Road usually remains good.
And if you are reaching from Bangalore side, you take the exit from NH4 from Panchwad town and reach Mahabaleshwar via Wai & Panchagani although there is another option to completely bypass Panchagani and reach Mahabaleshwar directly after Satara.