IMAGE
Geologist Royden Thomson in drainage tunnel, Cromwell Gorge
- Date
- 17 August 1989
- Reference
- EP-Energy-Hydro Electricity, Clyde Dam-08
- Description
Chief site geologist Royden Thomson explaining the structure within a drainage tunnel at the no 5 creek slide. Photographed by an unknown photographer in August 1989.
The lake behind the Clyde dam involved inundating the toes of 14 major landslides in the Cromwell Gorge section of the new reservoir. It was feared that a rise in ground water could cause these slides to move, and possibly slump into the lake causing waves that might top the dam and damage the surrounding communities. One of the measures to stabilise these landslides involved constructing over 18 km of drainage tunnels throughout the gorge. This was some of the extra work causing a budget over-run on the project of nearly 50 percent.
Quantity: 1 b&w original photographic print(s).
Physical Description: Silver gelatin print, 25.4 x 20 cm
- Additional description
Alternative form available: Print in Turnbull Library Pictures Evening Post illustrations file at Energy-Hydro Electricity-Clyde Dam (Cabinet no 7, drawer 2).
- Access restrictions
- Partly restricted - Please use surrogate in place of original
- Part of
- Dominion Post (Newspaper): Photographic negatives and prints of the Evening Post and Dominion newspapers / Clyde Dam
- Format
- 1 b&w original photographic print(s), Photographs, Gelatin silver prints, Portraits, Silver gelatin print, 25.4 x 20 cm, Orientation: Horizontal image
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Geologist Royden Thomson in drainage tunnel, Cromwell Gorge. Dominion Post (Newspaper): Photographic negatives and prints of the Evening Post and Dominion newspapers. Ref: EP-Energy-Hydro Electricity, Clyde Dam-08. Alexander Turnbull Library, Wellington, New Zealand. /records/23147771More information can be found in our terms of use.