TY - JOUR
T1 - Cost and schedule overruns in large hydropower dams
T2 - an assessment of projects completed since 2000
AU - Plummer Braeckman, Judith
AU - Disselhoff, Tim
AU - Kirchherr, Julian
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
KW - Large dams
KW - World Commission on Dams
KW - Cost and schedule estimates
KW - Forecasting
KW - Hydropower
KW - Large dams
KW - World Commission on Dams
KW - Cost and schedule estimates
KW - Forecasting
KW - Hydropower
U2 - 10.1080/07900627.2019.1568232
DO - 10.1080/07900627.2019.1568232
M3 - Journal article
SN - 0790-0627
VL - 36
SP - 839
EP - 854
JO - International Journal of Water Resources Development
JF - International Journal of Water Resources Development
IS - 5
ER -