Morganza Spillway stilling basin, and substantial flooding occurred in the Atchafalaya Basin. After the 1973 flood, the structure was restored to its original condition. The issue of opening the gates to keep the Mississippi in its current place was next raised in May 1983. Although the gates were not opened, Louisiana Highway 1 running across the spillway was closed, and the Corps of Engineers built a ring dike and put a blanket of earth across a section of the spillway to contain water pouring underneath it. During the Great Mississippi and Missouri Rivers Flood in 1993, officials decided to leave the gates
Pequannoc Spillway Pequannoc Spillway The Pequannoc Spillway is a run-of-the-river spillway constructed in the 1920s as part of the Morris Canal system in the Pompton Plains section of Pequannock, New Jersey on one bank of the river and Wayne, New Jersey on the other bank. The spillway creates usable waterfront land out of swamps and provides water retention by creating a backwater on the Ramapo River. The structure is listed as part of the Morris Canal on the New Jersey Register of Historic Places as well as the National Register of Historic Places. It is a sister structure to the Pompton dam