Curved profile of dam wall from east side Photographer: William Martinson - 2016

Wall during construction Submitted by William MARTINSON Photographer: Unidentified

Dam wall in context from east Photographer: William Martinson - 2016

At the Bongolo Reservoir. Empire Parliaments' Delegation Tour of South Africa From the Collections of the Library of Parliament. Acc No. 1656 (54). Submitted by Lila Komnick Photographer: C F Stokes, SA Railways Publicity Dept. - 1924

View from north end of dam wall Photographer: William Martinson - 2018

Detail of curved dam wall from south bank Photographer: William Martinson - 2018

View of dam wall from south bank Photographer: William Martinson - 2018

View of dam wall from north end Photographer: William Martinson - 2018

View across dam wall from east side Photographer: William Martinson - 2018

View of dam wall from siphon spillway towards south end of dam wall Photographer: William Martinson - 2018

View from siphon spillway towards north end of dam wall Photographer: William Martinson - 2018

Detail of railing and security gate on dam wall Photographer: William Martinson - 2018

Detail of security gate - breached to allow access onto dam wall Photographer: William Martinson - 2018

Detail of cast iron ball and stanchion railings with galvanized mesh Photographer: William Martinson - 2018

Detail of cast iron ball and stanchion railing Photographer: William Martinson - 2018

Detail of west side of dam wall at north end Photographer: William Martinson - 2018

Detail of stepped concrete capping over siphon causeway Photographer: William Martinson - 2018

Enameled water level gauging rule mounted on upstream face of dam wall at south end Photographer: William Martinson - 2018

Detail of low level intake pipe to valve chamber Photographer: William Martinson - 2018

Detail of energy dissipation pond at base of dam wall Photographer: William Martinson - 2018

Oblique view of energy dissipation pond at base of dam wall Photographer: William Martinson - 2018

Detail of open spillway on north side of dam Photographer: William Martinson - 2018

Detail of valve chamber Photographer: William Martinson - 2018

Oblique view of parapet of valve chamber Photographer: William Martinson - 2018

Detail of bastion on parapet of Valve chamber Photographer: William Martinson - 2018

Detail of bastion on parapet of valve chamber Photographer: William Martinson - 2018

View of underside of bastion on parapet of Valve chamber Photographer: William Martinson - 2018

Oblique view of blind arches on valve chamber Photographer: William Martinson - 2018

Oblique view of arched window and entrance door to valve chamber Photographer: William Martinson - 2018

Detail of arched window to valve chamber Photographer: William Martinson - 2018

Oblique view of south face of valve chamber with two blind arches Photographer: William Martinson - 2018

Pair of blind arches in wall of valve chamber Photographer: William Martinson - 2018

Detail of valve control wheels inside valve chamber Photographer: William Martinson - 2018

Detail of tooled corner margin to sandstone blocks of valve chamber Photographer: William Martinson - 2018

Detail of moulded sandstone string-course to valve chamber Photographer: William Martinson - 2018

Detail of sandstone moulding to plinth of valve chamber Photographer: William Martinson - 2018

Detail of base of valve chamber on upstream side of dam wall Photographer: William Martinson - 2018

One of Queenstown's main sources of water, used extensively for recreation and watersports. Situated on the far shore is the Queenstown Powerboat and Yacht Club. Bought in 1981 Submitted by Dorothy Adendorff Photographer: Arthur English Prints

Early postcard of Dam Wall without the siphon spillway Submitted by William MARTINSON Photographer: Unidentified

Bongolo Poort prior to construction of dam wall Source: East London and Frontier Red Book. 1906:444 Submitted by William MARTINSON Photographer: Unidentified

A SAPSCO real photo postcard showing the completed concrete wall a few years after completion. Posted in December 1913. Submitted by Mark Finnigan via William Martinson Photographer: Unidentified

Postcard of Bongolo Poort, Queenstown by E.W. Welch of Queenstown circa 1906. The message on the postcard describes how the people of Queenstown are having a great reservoir constructed at the Poort. Submitted by Mark Finnigan via William Martinson Photographer: Unidentified

Bongolo Poort, Queenstown, circa 1903. showing site of the proposed dam wall across the poort. Postcard published by E.W. Welch of Queenstown. Submitted by William Martinson Photographer: Unidentified

Laying Foundation Stone, Bongolo Water Scheme, Queenstown, 1905. Card by local publisher E.W. Welch Submitted by Mark Finnigan via William Martinson Photographer: Unidentified