Where does storm water go? - ANSWERRivers, creeks, and reservoirs.
Development impact on storm water runoff: - ANSWERrunoffafter - runoffbefore
Return Period - ANSWERAverage length of time between
storms of a given duration and depth.
CEA Final Review Storm Water Runoff
Correct 100%
Where does storm water go? - ANSWERRivers, creeks, and reservoirs.
Development impact on storm water runoff: - ANSWERrunoffafter - runoffbefore
Return Period - ANSWERAverage length of time between
storms of a given duration and depth.
Has a 1% chance of occurring in any given year. - ANSWER100 year storm
The Rational Formula: - ANSWERQ = C*i*A
Q - ANSWERPeak runoff rate (cubic feet/sec)
C - ANSWERRunoff coefficient (dependent on surface type).
i - ANSWERRainfall intensity (inches/hour).
A - ANSWERArea in acres.
Rational Formula (recurrence adjustment) - ANSWERQ = Cf*Ci*A.
Cf - ANSWERRunoff coefficient adjustment factor.
intensity - ANSWERdepth/duration
Has a 10% chance of occurring in any given year. - ANSWER10 year storm
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