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Table 7 Watershed parameter analysis

From: Flood risk analysis: causes and landscape based mitigation strategies in Dire Dawa city, Ethiopia

Watershed Area (km2) Perimeter(km) Basin length (km) Drainage density (Km/km2) stream frequency
1 10.7 22.6 5.04 0.54 0.37
2 17.9 38.8 6.75 1.05 1.01
3 3.6 16.4 2.72 0.95 1.94
4 77.8 92.5 15.56 1.06 0.57
5 95.7 97.3 17.50 1.05 0.72
6 7.7 18.8 4.18 0.56 0.91
7 44.6 53.3 11.35 1.16 0.58
8 10.5 22.6 5.00 1.02 0.85
9 29.6 56.5 8.98 1.01 0.68
10 39.3 51.8 10.60 0.98 0.66
11 3.7 17.9 2.76 1.19 0.81
12 6.6 24.0 3.84 1.29 0.60
13 21.1 32.8 7.42 1.10 0.66
14 17.8 30.9 6.72 1.03 0.51
15 20.4 31.9 7.28 0.84 0.78
16 10.4 21.4 4.97 0.96 0.77
17 25.7 39.5 8.30 0.89 0.78
18 78.1 69.9 15.59 0.89 0.58
19 5.5 15.1 3.45 2.44 4.74
20 39.2 42.1 10.55 0.88 0.54
21 33.8 39.5 9.69 1.03 0.74
22 38.3 47.5 10.41 0.99 0.68
23 30.4 39.1 9.12 0.93 0.63
24 13.3 27.0 8.54 0.93 0.38
25 14.3 24.6 5.94 0.84 0.63
26 2.4 13.8 2.14 1.58 1.27