Lock and Dam No. 15

Lock and Dam No. 15 ( lock and dam No. 15) is one of 29 dams that enable navigation on the upper Mississippi. The combined structure is located below the Government Bridge between the cities of Iceland rock in Illinois and Davenport, Iowa. In 2004, the Lock and Dam No. was. 15 Historic District was added to the NRHP.

Barrage

The dam consists of a rolled weir with eleven jam rolls with a total length of 366.7 meters. These are located, in contrast to most of the other dams, placed in the flow direction. From the jam rolls two are equipped with overflow openings.

The dam height is 9 feet (2.70 m). The purpose of the weir is not the flood, but the damming of the Mississippi for navigation.

The dam in Rock Iceland is the largest roller dam of the world.

Lock

The lock consists of two chambers. The main chamber is 182.9 m long and 33.5 m wide, the second lock chamber is the same width 109.7 m long. This means that large thrust associations must be coupled apart. The decoupled Light on ropes in the large lock chamber are drawn while the push boat is funneled through the second chamber.