Spillway Dam Providing Substantial Cost Savings to Avocet Mining

CARES carried out an inspection of the Avocet Gold Mines Barrage and it was clear that the dam was failing. As a result CARES provided the design of a labyrinth spillway that offered a cost-effective, low maintenance solution. Avocet’s Inata Gold Mine had a barrage with a 400m wide overflow section to the east of […]

PROJECT SUMMARY
Project start: Jan 1970
Project completion: Jan 1970
Sectors: Infrastructure, Water Resources
Project location: Inata, Burkina Faso

CARES carried out an inspection of the Avocet Gold Mines Barrage and it was clear that the dam was failing. As a result CARES provided the design of a labyrinth spillway that offered a cost-effective, low maintenance solution.
Avocet’s Inata Gold Mine had a barrage with a 400m wide overflow section to the east of the barrage. This original scheme was an earthfill bund with rock erosion protection. During floods in 2009 and again in 2010 erosion problems were experienced and a more permanent solution was sought.
CARES recommended and designed a Labyrinth Spillway which compressed the length of the original failed crest into a series of trapezoidal sections resulting in a more economical structure with higher discharge per metre width of spillway.
CARES provided the design of a labyrinth spillway that offered a cost-effective, low maintenance solution using minimal construction materials, providing a substantial cost saving for Avocet.
CARES also provided on-site Quality Control (QC) and Quality Assurance (QA) during the construction works.

SERVICES PROVIDED:
  • Labyrinth Spillway Dam Design
  • Dam Inspection
  • Construction Quality Control (QC) / Quality Assurance (QA)
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