Old River Control Structure Old River Control Structure The Old River Control Structure is a floodgate system in a branch of the Mississippi River in central Louisiana. It regulates the flow of water leaving the Mississippi into the Atchafalaya River, thereby preventing the Mississippi river from changing course. Completed in 1963, the complex was built by the U.S. Army Corps of Engineers in a side channel of the Mississippi known as "Old River", between the Mississippi's current channel and the Atchafalaya Basin, a former channel of the Mississippi. The Old River Control Structure is actually a complex containing the original low-sill and overbank structures,
Pequannoc Spillway that the dam should be removed as it is a protected part of the Morris Canal listed in both the New Jersey Register of Historic Places and the U.S. National Register of Historic Places. 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