Lake Okeechobee discharges into St. Lucie River, Indian River Lagoon top ‘Lost Summer of 2013’ | Graphic on September 22, 2016September 22, 2016 By Florida's Big Dig Lake Okeechobee discharges into St. Lucie River, Indian River Lagoon top ‘Lost Summer of 2013’ | Graphic Share this:TwitterMoreFacebookPocketLike this:Like Loading...