oa Civil Engineering = Siviele Ingenieurswese - Rehabilitation of a 75-year-old Free State workhorse
|Article Title||Rehabilitation of a 75-year-old Free State workhorse|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Publication Date||Jun 1956|
|Pages||21 - 22|
|Keyword(s)||Free State, River Bridge No 86 and Welkom|
Innovative techniques were used to ensure the continued viability of a vital regional link to schools, shops and farming activities land River Bridge No 86 south of Welkom in the Free State was constructed in 1921. The mass concrete (1 :2:4) abutments and the central pier were founded on large concrete (1 :3:6) caissons (8,6 m by 3,35 m) at a depth of about 5 m below river bed level onto a boulder bed, which prohibited further sinking.
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