Hammarsdale Interchange | KZN – Supervisory Surveyor


  • Pre- and post-construction concrete survey checks.
  • Verification of quantities on the Contractor’s Certificate
  • Layer works checking.
  • Earthworks setting out.
  • Structural monitoring of new bridge structure.

Client: HATCH

Date: 2015-2019

The national and provincial importance of the Hammarsdale Interchange stems from its location on the N3 between eThekwini and Msunduzi Municipalities, its proximity to the rail line linking Gauteng to Durban Harbour, and the proposed inland container terminal at Cato Ridge. To fast-track its completion, SANRAL partnered with eThekwini Municipality to co-fund the project.

The simple diamond interchange at Hammarsdale has been upgraded to a semi-parclo (partial clover leaf) free-flow interchange. This includes construction of six new on- and off-ramps. The improved geometry of these ramps demanded significant cutting into the existing ridges, requiring regular blasting activities which became familiar to frequent travellers along the route. GeoAfrika Surveys were responsible for on-site survey supervision and oversight on behalf of the consulting engineers on site.