A woman's body, "in advanced decompsition state," was found in the Bonnet Carre' Spillway on Wednesday morning, according to the St. Charles Parish Sheriff's Office.
KCS Railroad crews notified St. Charles officials around 7 a.m. that they found the body just west of the entrance canal to the spillway's lower section.
The woman was wearing a red-and-blue plaid button-down shirt, a white under shirt and a blue sports bra, the Sheriff's Office said.
Anyone with information is asked to call detectives at 985-783-1135 or 985-783-6807.
More details to come.