Causes, Effects, and Mitigation Measures of Time and Cost Overruns in Water Supply Projects: Case of Tigrai Region, Northern Ethiopia

Table 9

Findings of the case studies.

Project	Contract signed date	Contract completion date	Actual completion	Time overruns (day)	Initial contract amount (ETB)	Actual cost (ETB)	Cost overruns (ETB)	Cost overrun, (%)
A	07-08-07	19-08-08	Ongoing	741	135,202,397.4	150,901,250.7	15,698,853.3	12
B	09-07-07	13-04-08	21-10-09	553	17,556,161.1	19,401,165.9	1,845,004.8	10.5
C	11-02-09	25-07-09	10-01-10	165	5,403,696.5	6,645,094.2	1,241,397.7	23
D	17-04-07	22-01-09	14-08-09	142	15,183,028.5	16,357,182.9	1,174,154.4	7.7
E	20-11-08	14-03-09	07-12-08	−97	5,549,151.5	5,715,598.9	166,447.4	3
F	27-10-08	08-09-09	20-08-09	−18	16,375,502.9	16,364,176.6	−11,326.3	0
G	22-04-06	10-02-09	Ongoing	571	136,892,950.5	171,116,180.5	34,223,230	25
H	08-07-07	09-04-08	Ongoing	870	75,113,281.6	84,106,477.8	8,993,196.2	12
I	12-04-08	05-04-10	Ongoing	145	125,850,628.3	251,700,979.6	27,592,776.8	22
J	22-10-08	25-09-09	03-11-09	37	9,440,495.20	8,608,284.90	−832,210.20	−8.8
K	05-08-08	15-01-09	15-02-09	39	6,089,668.30	5,729,844.80	−359823.4	−6

Note: ETB = Ethiopian birr.