WebE.2.1.2 Runoff Coefficient Table F.2 provides guidelines for evaluating the value of the runoff coefficient 'C'. In areas having more than one soil type or land use, the effective coefficient is obtained by evaluating a coefficient for each sub-area and computing a "weighted" average for the entire catchment based on area served. WebC = Runoff coefficient to reflect the ratio of rainfall to surface runoff . i = Rainfall intensity in inches per hour (in/hr) A = Drainage area in acres (ac) Limitations and assumptions in …

Determination of runoff coefficients of storm-water-basin …

WebRunoff Coefficient (C) This Coefficient allows for the quantity of water which runoff a particular type of surfacing into a drainage system, and discount the quantity of water which will soak into or through the surfacing. Typical values are given below; Typical Runoff Coefficients. Land Use. WebRUNOFF COEFFICIENT 1.00 0.85 0.85 0.20 0.86 NOTES: 1 Runoff coefficients for each surface type are as per DEP. 2 Total roof areas onsite. 3 Identify any other surfaces … christian little women

Drainage of Runoff from Natural Catchments (including …

WebRunoff Coefficients (C) Rational method runoff coefficients are tabulated below. Note that Stormwater Studio allows you to compute composite coefficients with up to three … Webfmax = maximum coefficient of side frictional force developed between the vehicle tyres and the road pavement. However, the desirable maximum coefficient of side friction (or even a value close to it) should be used in preference to the absolute maximum value whenever possible (see Tables 11.1). Equation 11.1 is commonly called the ‘point ... http://www.bayareaperviousconcrete.com/blog/2015/3/11/the-rational-method-and-pervious-concrete georgia heart institute gainesville georgia