The ramp that winds around McCormick Place was closed during morning rush hour while authorities conducted an investigation. It was unknown when it would reopen.
Responding to a call of a car crash around 4:20 a.m., police found a 32-year-old Michelle Smith shot inside a van in the southbound lanes of Lake Shore Drive near I-55. She was pronounced dead on the scene.
Police say 10-14 bullets were fired into the vehicle from a full-sized brown van that pulled alongside the victim's vehicle. Police are talking to an unarmed female passenger who was in the van.A 37-year-old passenger was taken into custody and interviewed by police.
Authorities said that this was a drug and gang related incident and while the shooter or shooters remain at large, the public is not in danger.
Smith's car was registered to a boarded up home in the Back of the Yards neighborhood, where the bridge across the street marks a significant boundary between gangs.
Smith had a relationship with a high-ranking gang member, Chicago Police Superintendent Garry McCarthy said on WLS AM's Roe and Roeper Show.
The Sun-Times Media Wire contributed to this report.