Emergency Services were called to the scene of a two car smash on Carlton Street near Lake Wendouree at 1.35pm on Saturday, September 23.
It is believed a sedan traveling towards the lake and a ute have collided on the road.
A woman in her 40s has been transported to Ballarat Base Hospital in a stable condition suffering minor injuries.
Paramedics treated a second person at the scene who did not need to be transported to hospital.
Police have blocked access to Carlton Street between Wendouree Parade and Crocker Street while CFA crews clean spilled petrol from the road.