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Cost and schedule overruns in large hydropower dams: an assessment of projects completed since 2000

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  • Judith Plummer Braeckman
  • Tim Disselhoff
  • Julian Kirchherr

Abstract

This paper presents novel data on cost and schedule overruns in recent dam projects started and completed since 2000 and compares them with pre-existing data sets on projects started before 2000. Combining these data, a meta-data set was created of 184 cost overrun and 191 time overrun data points. For post-2000 projects, the average cost overrun was 33% and schedule overrun was 18% as compared with 46% and 37% respectively for pre-2000 projects. While a decrease in the averages was observed, the change in cost overruns is not statistically significant, whereas the change in time overruns is significant.

Suggested Citation

  • Judith Plummer Braeckman & Tim Disselhoff & Julian Kirchherr, 2020. "Cost and schedule overruns in large hydropower dams: an assessment of projects completed since 2000," International Journal of Water Resources Development, Taylor & Francis Journals, vol. 36(5), pages 839-854, September.
    • Handle: RePEc:taf:cijwxx:v:36:y:2020:i:5:p:839-854
    DOI: 10.1080/07900627.2019.1568232
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