Skip to a section 1. CLAIM: The diversion will not lower storm surge and will cause flooding in Plaquemines Parish. 2. CLAIM: Diversions contribute to saltwater wedges and navigation issues in the Mississippi River. 3. CLAIM: We can spend the $3 billion projected cost of the Mid-Barataria Sediment Diversion on other projects, like dredging. 4. CLAIM: MBSD could be constructed smaller than planned. 5. CLAIM: MBSD is being imposed on residents who don’t want it. 6. CLAIM: Dolphins are a ... ...