The driver, in his 20s, hit a signpost on Bordesley Middleway in a blue Audi A5 shortly before midnight.
The road was closed for several hours following the smash.
Officers at West Midlands Police are now appealing for information from witnesses to the incident, as well as any CCTV or dash cam footage that may have caught the moments leading up to and including the crash.
Those with information should contact the force via live chat on their website or by calling 101, quoting log number 4943 of 10/10.
Crimestoppers can be contacted anonymously on 0800 555 111.