decking and rainfall coefficient

hydraulic design manual: rational method - search - txdot

the rational formula estimates the peak rate of runoff at a specific location in a watershed as a function of the drainage area, runoff coefficient, and mean rainfall...【Get Price】

evaluation of linear thermal expansion of wpc-decking ... - idecking

the volume of thermoplastic polymers is highly dependent on the change of temperature. this behaviour ... linear thermal expansion coefficient of decking boards made ... material: material is a wpc-decking board in form of a hollow profile.【Get Price】

how to calculate runoff coefficient | hunker

a runoff coefficient is a number that relates the rainfall rate and runoff rate. using the runoff coefficient, scientists and hydrologists can calculate how much water...【Get Price】

stormwater runoff from bridges - connect ncdot

may 9, 2012 ... 4.2.2 linking bridge deck runoff to receiving streams . ...... organic constituents frequently have high sorption coefficients, and can.【Get Price】

application of runoff coefficient and rainfall-intensity-ratio to analyze ...

may 9, 2016 ... 1. application of runoff coefficient and. 1 rainfall-intensity-ratio to analyze the relationship between. 2 storm patterns and flood responses. 3.【Get Price】

17-1 deck drainage design

c. = coefficient of runoff = 1.0 for bridge decks; i. = average rainfall intensity, in inches per hour, for a given frequency and for the duration equal to the time of...【Get Price】

stormwater drainage manual - drainage services department

6.8 design considerations of rainfall and. 33 .... 13.9 decking of existing nullahs. 80 ...... (iii) constant proportional losses (runoff coefficient).【Get Price】

temperature driven expansion–contraction of composite deck ...

jan 22, 2007 ... temperature driven expansion–contraction of composite deck boards: linear ... linear coefficient of thermal expansion–contraction for...【Get Price】

design of bridge deck drainage - federal highway administration

may 21, 1993 ... 8.2 establishment of governing design element--rainfall intensity ... the bridge deck and pavement runoff coefficient is usually assumed to be...【Get Price】

21 rainfall and runoff - christchurch city council

c = runoff coefficient (see 21.3.4) i = average rainfall intensity (mm/hr) during the design storm of duration (d) for the appropriate design annual exceedance.【Get Price】