Transport and Public Works

Question by: 
Hon Pierre Uys
Answered by: 
Hon Donald Grant
Question Number: 
1
Question Body: 
  1. Who is responsible for the (i) design and (ii) construction of the arched or suspended bridge over the Cogmans gorge at Ashton, (b) why was this specific design decided on, (c) which other design techniques were considered, (d) what was the estimated cost of each of the various possible designs that could have be used, (e) explain each of the alternatives that was considered, (f) give an explanation of the advantages and disadvantages as well as the estimated cost of each design, (g) when will the construction of the bridge and the road be completed, (h) by whom, (i) at what total cost and (j) what process was followed for the appointment of the consulting engineers and contractors?

 

Answer Body: 

*1. (a)(i)         The design of the bridge is the responsibility of the Sub-Directorate Structures in the Directorate Road Design, Branch Road Network Management of the Department of Transport and Public works.

(ii)         The construction of the bridge is the responsibility of the Directorate Construction and Maintenance, Branch Road Network Management of the Department of Transport and Public works.

  1. The decision followed considering the advantages and disadvantages of design options. See the summary of key design considerations matrix attached.
  1. See the summary of key design considerations matrix attached.
  1. The estimated costs as given in the preliminary report dated March 2013 were as follows:
  1. Voided slab or Precast beam deck built with temporary bypass - R106 m
  2. Voided slab or Precast beam deck built in half width - R84 m
  3. Tied Arch bridge - R85 m

 

  1. See the summary of key design considerations matrix attached.

 

  1. See the summary of key design considerations matrix attached, as well as answer (d) above.

 

  1. The current estimated completion date for the full project is August 2020.

 

  1. The procurement process has not been completed and a new contractor has not yet been appointed.
  1. The total cost will only be available on completion of the contract.
  1. No new Consulting Engineering appointment is required. A tender process will be followed to appoint a new contractor to complete the bridge.

 

 

 

 

 

 

 

Date: 
Friday, October 12, 2018
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