diversion tunnel

The diversion tunnels are expected to be complete by the end of 2012.

Today, it is not very likely that they could be removed from the diversion tunnels.

Construction on access roads and diversion tunnels began in 2010.

Construction of a diversion tunnel started in early 1952.

The diversion tunnel was adapted to become the dam's outlet works.

On May 15, 1963, the diversion tunnel was blocked and the reservoir began to fill.

The diversion tunnels were closed and the reservoir began to fill on June 15, 1964.

At the time of the tunnel's completion, it was the longest power diversion tunnel in the world.

This meant that the spillway had to be designed as part of the diversion tunnel.

Work on a diversion tunnel began in 1933.

He also digs multiple diversion tunnels to throw the Germans off.

The dam's diversion tunnel was completed in June 2011.

The diversion tunnel was closed on January 24, 1968, with releases through the outlet structures the next day.

The diversion tunnel was closed on September 27, 1971, allowing the reservoir to begin filling.

The upper ends of the diversion tunnels were then sealed with solid concrete.

The dam has a diversion tunnel that is .

Construction on the river diversion tunnel began in 2009 and the dam was complete in 2012.

The diversion tunnel was later blocked heaving/collapse of the hill in December, 2010.

The two inner diversion tunnels have two concrete plugs in them.

A diversion tunnel to allow the river to bypass the dam site was excavated between 1966 and December 1973.

Plans for the dam were drawn up in 1978 and construction on the diversion tunnels began in 1996.

Before flooding began, engineers planned to seal the diversion tunnels and begin filling the reservoir.

The original diversion tunnel became the north outlet works, abandoned and sealed in 1958 with bulkheads.

In 1956, work began on the two diversion tunnels that would carry the Colorado River around the dam site during construction.

On February 11, 1959, the right diversion tunnel was completed and began to carry the flow of the Colorado.