Karori Reservoir Tower

Zealandia

Karori Reservoir, Waiapu Road, Karori, Wellington
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  • Constructed

    1872 - 1878

  • Architect(s)

    Nicholas Marchant

  • Builder(s)

  • The water tower building is an excellent example of the Carpenter Gothic style and has architectural value for its design, style, materials, and craftsmanship. The picturesque design-aesthetic, and location, elevates the importance of this building greatly above its mundane function.   

    The Karori Reservoir Tower is a structure that, along with the reservoir itself, has gained significant historic value as the beginning of the municipal water supply to Wellington City. The dam is the first water supply dam built in New Zealand by a municipality and is the second purpose built water supply dam in the country. 

    The dam and its various elements, including the tower, have the potential to tell a dramatic story about the importance of water supply in early Wellington, water capture techniques, and the substantial engineering effort required to achieve a sustainable water supply. 

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  • close History
    • The Karori Reservoir Tower is a structure that, along with the reservoir itself, has gained significant historic value as the beginning of the municipal water supply to Wellington City. The amenity value of the reservoir has been significant as a service and continues to be a key feature of the Karori sanctuary and as the setting of the tower creates a picturesque scene of water, hills, and trees.

      For the first 40 years of Wellington’s settlement there was no communal water supply. Residents either collected rainwater or relied on streams and wells. As the population grew this situation became unsustainable and unsafe. A report written by Dr. James Hector to the town board in 1871 confirmed the risk of pollution and recommended a single source for the supply of water. The city surveyor, Nicholas Marchant, responded with a recommendation for a reservoir in the Karori valley, close to the source of the Kaiwharawhara Stream.

      Marchant designed a dam which was built across the gully by the contractors Saunders and O’Malley at a cost of £4800. It began to supply water to Wellington City in 1874 and the water level behind the innovative concrete structure was controlled by a valve housed in this elegant timber building atop a tall concrete tower set in the back of the dam. The dam is a puddle clay core construction, meaning that it has a central core of puddle clay, with graded banks of gravel on either side. The tower, which stands in the water retained by the dam, is a concrete cylinder which incorporates two manually operated valves used originally to control the water level of the dam. The tower is an original feature of the design, and the shaft terminates above the water in an octagonal ‘turret’ with Gothic inspired arched openings and a bracketed enclosing walkway linked to the land by a steel trussed access bridge, which was replaced in 1924 by the present wooden structure.

      In 1988 upgrading work was carried out and the interior was lined with plywood and zinc roofing was put on in place of the original lead sheeting. Other changes since construction include the replacement of the original timber balustrade to the bridge with the present steel pipe handrail.

      In 1997/98 the dam was decommissioned and in 2004 the Karori waterworks reserve was gifted back to Wellington City Council for the development as a feature of the Karori Wildlife Sanctuary.

  • close Architectural Information
    • Building Classification(s) close

      Not assessed

    • Architecture close

      The water tower building is an excellent example of the Carpenter Gothic style. It is octagonal in plan, with a lancet shaped opening to each facet of the wall. One of these opening is a door, while the others have ventilating slats. The steep pitched turreted roof, clad in flat sheet zinc, has a small gabled dormer to dour of the eight facets, infilled with ventilating slats and the roof finishes at the apex with a turned timber finial. The foundation of the building is a circular concrete tube that extends to the base of the dam. There are concrete corbels at water level which support a continuous walkway with a steel framed bridge which connects the tower to the shore. Above the walkway level, the structure of the building is timber framing clad in rusticated weatherboards.

    • Materials close

      Timber joinery

      Rusticated weatherboards

      Concrete base

      Flat sheet zinc roof

    • Setting close

      The tower is a part of a large heritage landscape defined by the Lower Karori Dam, a major public utility situated within the Karori Wildlife Sanctuary (Zealandia). It is accessed from Waiapu Road, and the valley in which the dam sits is located in Karori between Highbury and Wright’s Hill.

  • close Cultural Value

    The water tower building is an excellent example of the Carpenter Gothic style and has architectural value for its design, style, materials, and craftsmanship. The picturesque design-aesthetic, and location, elevates the importance of this building greatly above its mundane function.

    The Karori Reservoir Tower is a structure that, along with the reservoir itself, has gained significant historic value as the beginning of the municipal water supply to Wellington City. The dam is the first water supply dam built in New Zealand by a municipality and is the second purpose built water supply dam in the country.

    The dam and its various elements, including the tower, have the potential to tell a dramatic story about the importance of water supply in early Wellington, water capture techniques, and the substantial engineering effort required to achieve a sustainable water supply.

    • Aesthetic Value close
      • Architectural

        Does the item have architectural or artistic value for characteristics that may include its design, style, era, form, scale, materials, colour, texture, patina of age, quality of space, craftsmanship, smells, and sounds?

        The water tower building is an excellent example of the Carpenter Gothic style and has architectural value for its design, style, materials, and craftsmanship. The picturesque design-aesthetic, and location, elevates the importance of this building greatly above its mundane function.

      • Group

        Is the item part of a group of buildings, structures, or sites that taken together have coherence because of their age, history, style, scale, materials, or use?

        The water tower has significant group value as part of the original water supply infrastructure for Wellington City. Other elements within this group include the water supply lakes and damns, the pipes and pumping mechanisms and the former boatshed building.

      • Townscape

        Does the item have townscape value for the part it plays in defining a space or street; providing visual interest; its role as a landmark; or the contribution it makes to the character and sense of place of Wellington?

        The tower is a part of a large heritage landscape defined by the Lower Karori Dam, and is only partially visible from Waiapu Road. The tower adds significant visual interest to the area.

    • Historic Value close
      • Association

        Is the item associated with an important person, group, or organisation?

        The Karori Reservoir Tower is a structure that, along with the reservoir itself, has gained significant historic value as part of the beginning of the municipal water supply to Wellington City. The dam is the first water supply dam built in New Zealand by a municipality and is the second purpose built water supply dam in the country.

    • Scientific Value close
      • Archaeological

        Does the item have archaeological value for its ability to provide scientific information about past human activity?

        The dam and associated tower are an important industrial archaeological site that has undergone some previous investigation – NZAA R27/276.

      • Educational

        Does the item have educational value for what it can demonstrate about aspects of the past?

        The dam and its various elements, including the tower, have the potential to tell a dramatic story about the importance of water supply in early Wellington, water capture techniques, and the substantial engineering effort required to achieve a sustainable water supply.

      • Technological

        Does the item have technological value for its innovative or important construction methods or use of materials?

        The tower is of technical interest as an element of the whole dam structure, as well as for its craftsmanship in timber.

    • Social Value close
      • Identity Sense Of Place Continuity

        Is the item a focus of community, regional, or national identity? Does the item contribute to sense of place or continuity?

        This structure has considerable historic significance for Wellington city and the Wellington region in their functions, and national significance for the construction and design of the dam. The tower and the dam create a highly picturesque landscape that contributes well to the sense of place and continuity in Wellington.

      • Public Esteem

        Is the item held in high public esteem?

        The tower is part of a publicly available area with high use values, great visual interest, and obvious attractiveness to visitors. It is held in high public esteem as a part of a historic landscape and the Karori Wildlife Sanctuary/Zelandia.

    • Level of Cultural Heritage Significance close
      • Authentic

        Does the item have authenticity or integrity because it retains significant fabric from the time of its construction or from later periods when important additions or modifications were carried out?

        This building has had few alterations and has been kept in good condition; it has great integrity and authenticity.

      • Local Regional National International

        Is the item important for any of the above characteristics at a local, regional, national, or international level?

        As a part of the dam historic landscape, the Karori Reservoir tower, is of regional significance. It is part of an intact industrial landscape, has architectural value, has important historic associations, is of educational and technical value, and contributes well to the sense of place in Wellington.

      • Rare

        Is the item rare, unique, unusual, seminal, influential, or outstanding?

        The Karori dam and the tower is the first of their kind built in New Zealand by a municipality, and the second purpose built water supply dam in the country. The tower has some rarity value due to this association.

      • Representative

        Is the item a good example of the class it represents?

        The tower is an excellent example of the Carpenter Gothic architecture style, and has had a significant history as a part of an important historic landscape.

    • Local / Regional / National / International Importance close

      Not assessed

  • close Site Detail
    • District Plan Number

      11/ 168

    • Legal Description

      Lot 1 DP 313319, Part legal road, Wellington Land District Pt Sec 1 Upper Kaiwharawhara District marked A on SO 32281, Pt Sec 10 Owhiro District Marked A on SO 32922

    • Heritage New Zealand Listed

      1/ 7750

    • Archaeological Site

      NZAA R27/276

    • Current Uses

      unknown

    • Former Uses

      unknown

    • Has building been funded

      No

    • Funding Amount

      Not applicable

    • Earthquake Prone Status

      Unknown

  • close Additional Information

Last updated: 10/24/2017 11:11:18 PM