The core samples in the display cabinet were obtained from the various sites at which drilling into the rock surface was carried out (under the control of design and structural engineers of the SEC Kiewa Hydro Scheme - late 1940's). This function was a precursor to the decision where to locate, in this case, the McKay Creek Power Station. The information gained by structural engineers from the core samples would be used also for the placements of underground tunnels entry and exit points and the overall effective size of the generator plant. This would have included drill and blast techniques (rock characteristics play an import part of explosion control), requirements for support structures and reinforcing cement/steel forms. The use and replenishment of diamond drill bits(the strongest available, see KVHS 0280) was dependent on the "type" of rock found (harder rock required greater numbers of drill bits). Support beams for reinforced ceilings and floors was also a necessity.These rock core samples are very significant in the formulation and placement of the underground Power Stations and their maze of tunnels (in and out) for a successful implementation of the Hydro Scheme. The amount of pre-planning and engineering studies required for such a large scheme must be undertaken to ensure that a "white elephant" was not the result.There are nine columns of rock cores, each 30mm in diameter, set in a wooden display rack. A clear plastic (slide out) protective panel is installed to the front section. Within each column are block details of the depth from which that section was brought from. See KVHS for the appropriate sketch details.Depth levels (retrieved from) are shown for each section on wooden Blocks: 1st Block: "7'10" (seven feet, ten inches), 2nd Block:"9'4" (nine feet, four inches), 3rd Block: "19'3" (nineteen feet, three inches), 4th Block: "24'2" (twenty four feet, two inches), 5th Block: "25'7"( twenty five feet, seven inches) and last block: "30' (thirty feet)"alternate energy supplies, alpine feasibility studies temperature, rainfall, sec, kiewa hydro scheme, electricity

This framed sketch details, in graphic form, where the core samples in the display cabinet were removed. The drilling was a precursor to the decision where to locate, in this case, the McKay Creek Power Station. The information gained by structural engineers from the core samples would be used also for the placements of underground tunnels entry and exit points and the overall effective size of the plant. This would have included drill and blast techniques(rock characteristics play an import part of explosion control), requirements for support structures and reinforcing cement/steel forms. The use and replenishment of diamond drill bits(the strongest available, see KVHS 0280) was dependent on the "type" of rock found. Support beams for reinforced ceilings and floors was also a necessity.The visual derails of where the rock core samples were removed is very significant in the formulation and placement of the underground Power Stations and their maze of tunnels(in and out) for a successful implementation of the Hydro Scheme. The amount of pre-planning and scientific studies required for such a large scheme must be undertaken to ensure that a "white elephant" was not the result.This framed and glass front rock core display sketch has type written information of the rock samples displayed in KVHS 0279 (A). It has a softwood stained and glossed frame with a fixed(nailed) back board and a brass fixture for mounting onto a wall.The paper and type are slighted faded (sunlight affected). The sign heading "ROCK CORE SAMPLES RECOVERED FROM DIAMOND DRILLED BORE" underneath this "BORE NO: 883" and below this "LOCATION: McKAY CREEK POWER STATION AREA" to the left a sketch incorporating the ground level point "GROUND LEVEL R.L.3493", and the core depth point "CORE DEPTH 40' 7". In between and representing( in visual form) the core location areain question.alternate energy supplies, alpine feasibility studies temperature, rainfall, sec, kiewa hydro scheme, electricity

E560 N5 Dec 1979 A43 Boring mole pit near big box tree in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.

E560 N6 Dec 1979 A43 The back-hoe works on the beginnings of pit in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.

E560 N24 Jan 1980 A43 Cover of mole pit near big box tree in 39 Burlock Avenue backyard Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N23 Jan 1980 A43 Compressor unit in backyard of 39 Burlock Avenue

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N22Jan 1980 A43 Work on mole boring pit in 39 Burlock Avenue backyard

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N10 Dec 1979 A43 Filling at 29 Burlock Avenue

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N9 Dec 1979 A43 Filling behind 29 Burlock Avenue just off sewer line

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N11 Dec 1979 A43 Filling at 29 Burlock Avenue

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N31 Jan 1980 A43 Closeup of revolving airwinch near Hibberd's house

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N25 Jan 1980 A43 Grating over hole 37 feet deep in Chalkley's 41 Burlock Avenue (lot 8)

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N27 Jan 1980 A43 View along line work in Hibberd's and Chalkley's (lot 9 and 8)

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N32 Feb 1980 A43 Truck-mounted posthole digger that tried to sink shafts on MMBW sewer line behind 29-39 Burlock Avenue. Four feet wide, the auger could only go down one metre and was nearly useless.

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N26 Jan 1980 A43 View behind no. 39 Burlock Avenue showing compressor, mole pit cover and the big box tree

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N28 Jan 1980 A43 Line of sewer work with mole power pack near Hibberd's shed

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N30 Feb 1980 A43 View east, sewer work line showing grate over pit

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N1 Feb 1980 A43 Air winch over the hole in the corner of Chalkley's (lot 8)

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N3 Feb 1980 A43 Swivel crane over first hole west of boring pit in 39 Burlock Avenue. The track used to reach Burlock Avenue on left.

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E560 N29 Feb 1980 A43 View along MMBW work line in east end of Hibberd's, showing grating over mole boring pit

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N2 Feb 1980 A43 Final hole in lot 8 (no. 41) at the corner of Chalkly's

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N4 Feb 1980 A43 The boring hole, 39' deep, at lot 7 (Clarke's, 39 Burlock Ave) with the generator used to supply light.

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N6 Feb 1980 A43 Compressor of the tunnelling gang on the sewer line in Burlock Ave

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N5 Feb 1980 A43 Cars and caravans of the tunnelling gang in Burlock Ave

Part of a 43-photo record of the MMBW engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980."E565 N8 16 April 1980 A43 The pipe laying has been finished, now to cover it all in."

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E565 N11 28 April 1980 A43 The grip of the mechanical mole. The square at the bottom revolves, turning the sectioned shaft that carries the mole at its end.

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E565 N10 28 April 1980 A43 The "muscles" of the mechanical mole, driven by a hydraulic line from a powerful "power pack".

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N8 Feb 1980 A43 Line of tunnel shafts running from bottom centre to left of centre

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E561 N12 Feb 1980 A43 Line of tunnel shafts at 29-30 Burlock Avenue showing swivel cranes 5 and 6 from the bore-hole in Lot 7

Part of a 43-photo record of the MMBW�s engineering feat in drilling a 12 inch pipe line up to 40 feet deep through rock hardened by volcanic action associated with geological fault that occurs along the line. The work took place from October 1979 to May 1980 on the southern boundary of Hubbard Reserve, North Ringwood. The collection was presented to the Ringwood Historical Research Group by J Clarke on 9th June 1980.E563 N2 12 April 1980 A43 MMBW compound in Evelyn Road gully