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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 ...

#### The Modified Rational Method - NJCDEA.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 ...

#### 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) ... Down

#### CHAPTER 5 Computing Stormwater Runoff Rates and …

C =

www.njstormwater.org/bmp_manual/NJ_SWBMP_5 print.pdf**Rational Method runoff**coefficient I = rainfall intensity (inches per hour) A = drainage area (acres) D = storm duration (hours)#### Estimating Storm Water Runoff - PDHonline.org

Chapter 3 - Estimating Stormwater

www.pdhonline.org/courses/h119/stormwater runoff.pdf**Runoff**3.5**RATIONAL METHOD**The**R ational**For mula is the most commonl y used**method**of deter mining peak discharges#### Design Manual Using the Rational Method to Chapter 4 ...

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**.#### TxDOT PROJECT 0-6070: USE OF THE RATIONAL AND …

TxDOT PROJECT 0-6070: USE OF THE

tti.tamu.edu/conferences/tsc11/program/presentations/struct...**RATIONAL**AND MODIFIED**RATIONAL METHOD**FOR HYDRAULIC DESIGN Presentation by: Matthew Wingfield P.E., CFM . …