Wahroonga Reservoir (Elevated) (WS 0124) | NSW Environment & Heritage

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Wahroonga Reservoir (Elevated) (WS 0124)

Item details

Name of item: Wahroonga Reservoir (Elevated) (WS 0124)
Type of item: Built
Group/Collection: Utilities - Water
Category: Water Supply Reservoir/ Dam
Location: Lat: -33.7193219176 Long: 151.1140947360
Primary address: 1678 Pacific Highway and Woonona Avenue, Wahroonga, NSW 2076
Local govt. area: Ku-Ring-Gai
Local Aboriginal Land Council: Metropolitan
Property description
Lot/Volume CodeLot/Volume NumberSection NumberPlan/Folio CodePlan/Folio Number
PART LOT1 DP1210093

Boundary:

Listing boundary is 3 metres from the edge of the reservoir.
All addresses
Street AddressSuburb/townLGAParishCountyType
1678 Pacific Highway and Woonona AvenueWahroongaKu-Ring-Gai  Primary Address

Owner/s

Organisation NameOwner CategoryDate Ownership Updated
Sydney WaterState Government27 Nov 98

Statement of significance:

Wahroonga Reservoir (Elevated) (WS 124) is an unusual and unique reservoir in the Sydney Water Supply System. The whole structure is a fine example of riveted steel design and technology, surviving intact. It is a distinct local landmark. The reservoirs at Wahroonga demonstrate the variety of reservoir construction techniques used by the MWS & DB, the engineering expertise available to the Board as well as the growth in demand in the Northern Suburbs from 1898 onwards, now more than 100 years of growth. Wahroonga reservoirs have played a major role in the supply of water to the Northern Suburbs.
Date significance updated: 07 Sep 16
Note: The State Heritage Inventory provides information about heritage items listed by local and State government agencies. The State Heritage Inventory is continually being updated by local and State agencies as new information becomes available. Read the OEH copyright and disclaimer.

Description

Designer/Maker: Water Board
Builder/Maker: Water Board
Physical description: Wahroonga Reservoir (Elevated) (WS 124) is an unusual and unique reservoir in the Sydney Water Supply System. It has a cylindrical elevated riveted steel tank, with an original roof and a spherical or rounded base, all constructed in riveted steel plate. The reservoir is supported on an eight legged, H section, steel girder riveted frame, with horizontal and diagonal bracing. The top of the reservoir is reached by a stairway up the inside of the frame, with a walkway at the top of the frame (attached by triangular riveted plates) and a stairway to the roof of the reservoir. The whole structure is a fine example of riveted steel design and technology, surviving intact for more than 85 years. It is a prominent local landmark.

Standard features include: davit, trigonometric station, access stairway, handrails and inlet and outlet valve chambers.

Significant plantings include: cypress, jacaranda and Illawarra flame tree.

Full Service Level: 237 m.
Capacity: 1.1 ML.
Modifications and dates: Good condition and intact.
Current use: Reservoir.
Former use: Reservoir.

History

Historical notes: Wahroonga Reservoir (Elevated) (WS 124).

Northern Suburbs Supply.

When the Board took over from Sydney City Council in 1888, the only supply to the northern suburbs was by a submarine main from Dawes Point to Milsons Point, taking water by gravitation from Paddington Reservoir. The level of Paddington Reservoir limited supply to the lower areas of the N Sydney.

In 1888, in order to overcome this problem, the Board erected a pumping station in Junction Street, N Sydney, with two storage tanks in the grounds of St. Thomas’ Church, to meet demand for the higher parts of N Sydney. The plant was dismantled in 1892, the pump being transferred to Carlton and the tanks to Wahroonga (not extant). The above submarine main was abandoned in 1917.

In 1892 the Ryde Pumping Station was commissioned, supplied by mains from Potts Hill (via Rookwood Cemetery, along the Concord Peninsula and attached to the 1889 railway bridge at Meadowbank), with reservoirs at Ryde Pumping Station (disused 1930) and Ryde Hill and then by mains to a pair of reservoirs at Chatswood (previously constructed in 1888).

With increasing population of the N Shore, brought about by the construction of the railway, new storage reservoirs were required. The tanks, originally at N Sydney, were transferred to Wahroonga in 1896. A steam powered pumping station was erected at Chatswood in 1895 for the supply of Wahroonga. A new steel surface reservoir was constructed at Wahroonga in 1898 (Wahroonga Reservoir No.1 (WS 123)).

From Wahroonga the main from Chatswood extended to Hornsby, with a branch to Thornleigh and Beecroft.

The mains from Chatswood to Wahroonga had deteriorated by 1905, necessitating new direct mains from Ryde to Wahroonga, and from Chatswood to Pymble to connect to former.

Wahroonga Reservoir (Elevated) (WS 124) was erected in 1915.

A main to Mobbs Hill was constructed in 1916. It was extended to Beecroft and Wahroonga in 1918, superseding the Ryde Wahroonga Main which was now too small.

A Pumping Station was erected at Wahroonga for the elevated tank (Wahroonga Reservoir (Elevated) (WS 124)) in 1935.

New mains were constructed from Ryde to Wahroonga in 1937 for the new reservoir (Wahroonga Reservoir No.3 (WS 125)), with connection to Pymble.

Historic themes

Australian theme (abbrev)New South Wales themeLocal theme
4. Settlement-Building settlements, towns and cities Utilities-Activities associated with the provision of services, especially on a communal basis (none)-

Assessment of significance

SHR Criteria a)
[Historical significance]
The reservoirs at Wahroonga demonstrate the growth in demand in the Northern Suburbs from 1898 onwards, now more than 100 years of growth. Wahroonga reservoirs have played a major role in the supply of water to the Northern Suburbs.
SHR Criteria c)
[Aesthetic significance]
The reservoirs at Wahroonga demonstrate the variety of reservoir construction techniques used by the MWS & DB, the engineering expertise available to the Board. They are a prominent landmark in the area.
SHR Criteria e)
[Research potential]
The design and construction of this reservoir are not repeated in the SWC system.
SHR Criteria f)
[Rarity]
This reservoir is unique in the Sydney Water Supply Area, with its riveted cylindrical tank and riveted steel girder stand.
Assessment criteria: Items are assessed against the PDF State Heritage Register (SHR) Criteria to determine the level of significance. Refer to the Listings below for the level of statutory protection.

Recommended management:

Manage the place and its significant components in accordance with the Heritage Council State Owned Heritage Asset Management Guidelines and the Minimum Standards of Maintenance and Repair in the NSW Heritage Regulations. Manage significant site elements in accordance with a Conservation Management Plan (CMP). If no CMP exists, consult with Asset Management Commercial Services with respect to commissioning a CMP. When commissioning a CMP, do so in accordance with the Model Brief for CMPs available on ConnectNet. Seek endorsement of the CMP from the Heritage Council of NSW. Works undertaken in accordance with a Heritage Council-endorsed CMP do not require further approval under the NSW Heritage Act. Involve heritage professionals as required under the terms of the CMP, or as otherwise determined necessary. Review CMP every 5 years or in a major change of circumstances, whichever is sooner. Review of a CMP should only be undertaken following consultation with Asset Management Commercial Services . When commissioning a CMP review, do so in accordance with the Model Brief for CMPs available on ConnectNet. Where no CMP is in place, or where works are outside the scope of the existing CMP, assess heritage impacts of proposed works in accordance with Sydney Water Environment Impact Assessment guidelines (e.g. undertake a Heritage Assessment and/or Statement of Heritage Impact as required, obtain Heritage Council approval as required). Consult with the Heritage Manager, Environment and Innovation, when major works are planned which affect items of State heritage significance. Undertake archival and photographic recording before major changes, in accordance with Heritage Council guidelines. Lodge copies of the archival record with the Sydney Water Archives and the NSW Heritage Office. Where the item is listed in a Local Environmental Plan Schedule of Heritage items, determine if works are exempt from approval under the LEP provisions. Where works are not exempt, obtain necessary approvals from the local council, in accordance with SWC EIA Guidelines.

Procedures /Exemptions

Section of actDescriptionTitleCommentsAction date
57(2)Exemption to allow workStandard Exemptions SCHEDULE OF STANDARD EXEMPTIONS
HERITAGE ACT 1977
Notice of Order Under Section 57 (2) of the Heritage Act 1977

I, the Minister for Planning, pursuant to subsection 57(2) of the Heritage Act 1977, on the recommendation of the Heritage Council of New South Wales, do by this Order:

1. revoke the Schedule of Exemptions to subsection 57(1) of the Heritage Act made under subsection 57(2) and published in the Government Gazette on 22 February 2008; and

2. grant standard exemptions from subsection 57(1) of the Heritage Act 1977, described in the Schedule attached.

FRANK SARTOR
Minister for Planning
Sydney, 11 July 2008

To view the schedule click on the Standard Exemptions for Works Requiring Heritage Council Approval link below.
Sep 5 2008

PDF Standard exemptions for works requiring Heritage Council approval

Listings

Heritage ListingListing TitleListing NumberGazette DateGazette NumberGazette Page
Heritage Act - State Heritage Register 0135218 Nov 99 2209711
Heritage Act - s.170 NSW State agency heritage register 121423   
National Trust of Australia register      

Study details

TitleYearNumberAuthorInspected byGuidelines used
Sydney Water Heritage Study1996121423Graham Brooks and Associates Pty LtdGRAHAM BROOKS AND ASSOCIATES PTY LTD 1 July 1996 Yes

References, internet links & images

TypeAuthorYearTitleInternet Links
Management Plan (HC endorsed)Sydney Water Corporation.2005Wahroonga reservoirs : Conservation management plan

Note: internet links may be to web pages, documents or images.

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(Click on thumbnail for full size image and image details)

Data source

The information for this entry comes from the following source:
Name: Heritage Office
Database number: 5060541
File number: H05/00103


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