- Table 7 10 Typical C Coefficients For 5 To 10 Yr Frequency Design Description Of Area Runoff Coefficients Business Dow 1 (495.7 KiB) Viewed 36 times
TABLE 7.10 Typical C Coefficients for 5- to 10-yr Frequency Design Description of Area Runoff Coefficients Business: Dow
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TABLE 7.10 Typical C Coefficients for 5- to 10-yr Frequency Design Description of Area Runoff Coefficients Business: Dow
TABLE 7.10 Typical C Coefficients for 5- to 10-yr Frequency Design Description of Area Runoff Coefficients Business: Downtown areas 0.70-0.95 Neighborhood areas 0.50-0.70 Single-family areas 0.30-0.50 Multiunits, detached 0.40-0.60 Multiunits, attached 0.60-0.75 Residential (suburban) 0.25-0.40 Apartment dwelling areas 0.50-0.70 Industrial: Light areas 0.50-0.80 Heavy areas 0.60-0.90 Parks, cemeteries 0.10-0.25 Playgrounds 0.20-0.35 Railroad yard areas 0.20-0.40 0.10-0.30 Unimproved areas Streets: 0.70-0.95 Asphaltic Concrete 0.80-0.95 0.70-0.85 Brick 0.75-0.85 Drives and walks 0.75-0.95 Roofs Lawns, sandy soil: 0.05-0.10 Flat, 2% 0.100.15 Average, 2-7% 0.15-0.20 Steep, 7% Lawns, heavy soil: 0.13-0.17 Flat, 2% 0.18-0.22 0.25-0.35 Average, 2-7% Steep, 7% Residential:
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