Maples was riding his bicycle in a marked crosswalk when he was struck by a Nissan Altima. Police say the crosswalk was clearly marked by road notification markings and street signs at the time of the accident.
Maples was transported to Children's Hospital with critical injuries.
Maples was wearing a helmet and was in the company of his mother and two friends when he was struck. The driver of the vehicle, a 28-year-old woman, remained on the scene. The driver's name has not been released to the public.
The Traffic Operations Unit is continuing the investigation.