Upgrading of three historic arch bridges over the Orange River near Keimoes, South Africa

Author(s): A.A. Newmark, E.J. Smuts, E.J. Kruger, E. Lourens
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 401- 402
Total Pages: 2
Language: English

Abstract: 
This project is located on National Route R27 near Keimoes in the Northern Cape Province of South Africa. The overall objective is to improve traffic capacity and safety of the route, with the main focus being the widening of four single traffic lane bridges over the Orange River floodplain. This paper reviews the upgrading of the three main historic arch bridges. The project included a detailed hydrological and hydraulic assessment which resulted in the raising of two of the structures by approximately 2.5 m to prevent overtopping of the structures during larger flood events. The raising and/or widening had to comply with heritage requirements as these structures, completed in the early 1930’s, have significant historical importance. This resulted in the original form and appearance to be retained by using a similar arch configuration and detailing. Construction is currently due for completion early 2013.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00