Excavation of the dam site and construction of a diversion tunnel continued through 1954, with the first concrete placed on August 9, 1955.
42.
The pass was named for water diversion tunnel draining Ivanhoe Lake on the west side of the pass into the Arkansas River basin.
43.
All tunnels and underground caverns were excavated using drill and blast method except for the diversion tunnels which utilised a 3m-diameter tunnel boring machine.
44.
The net result will be to move water from an existing diversion tunnel to Pipe Spring, which has attracted travelers for hundreds of years.
45.
"We still need to continue with the river diversion tunnel project which was 65 per cent completed and the re-settlement programme, " he said.
46.
EKRAN Bhd executive chairman Tan Sri Ting Pek Khiing said yesterday work on the river diversion tunnels for the Bakun hydroelectric dam is still continuing.
47.
Ekran will complete work underway, including three river diversion tunnels, and the resettlement of an estimated 10, 000 indigenous people will go on, Anwar said.
48.
The foundations for " Bill's Brook Dam " and the diversion tunnel for the East Branch of the Farmington River were completed in August 1934.
49.
The diversion tunnel was partly closed in December and the reservoir began to fill, with final closure of the diversion tunnel on February 7, 1966.
50.
Two diversion tunnels, one of which will later be converted to a low level outlet, are proposed to handle river flow during the construction period.
