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#### Rational Method Hydrologic Calculations with Excel.pdf

**Rational Method** Hydrologic **Calculations** with Excel Harlan H. Bengtson, PhD, P.E. COURSE CONTENT 1. Introduction **Calculation** of peak storm water **runoff** rate from ...

#### CHAPTER 5 Computing Stormwater Runoff Rates and.pdf

C = **Rational Method runoff** coefficient I = rainfall intensity (inches per hour) A = drainage area (acres) D = storm duration (hours) ...

#### A. Rational Method Example.pdf

2B-6 Design Manual Chapter 2 - Stormwater 2B - Urban Hydrology and **Runoff** 1 Revised: 2013 Edition **Runoff** Examples A. **Rational Method** Example ... Down

#### A. Rational Method Example

2B-6 Design Manual Chapter 2 - Stormwater 2B - Urban Hydrology and

www.iowasudas.org/manuals/design/Chapter02/2B-6.pdf**Runoff**1 Revised: 2013 Edition**Runoff**Examples A.**Rational Method**Example#### The Modified Rational Method - NJCDEA

njscdea.ncdea.org/The Modified Rational Method.pdf**Rational Method**Equation: Based upon the**Rational Method**Equation: Q = C x I x A x APF Where: Q = The Quantity Flow Rate in CFS C = Dimensionless**Runoff**Coefficient#### Using the Rational Method to Determine Peak Flow

Chapter 4—Drainage Section 4A-5—Using the

www.iowadot.gov/design/dmanual/04a-05.pdf**Rational Method**to Determine Peak Flow Page 3 of 10 Table 1:**Runoff**coefficients for the**Rational Method**.#### 3.1.3 Rational Method - Knox County, Tennessee

A popular approach for determining the peak

www.knoxcounty.org/stormwater/pdfs/vol2/3-1-3 Rational Method.pdf**runoff**rate is the**Rational**Formula. The**Rational Method**...**Calculation**of t c ...**Rational Method Runoff**...