Laserfiche WebLink
<br />@) <br /> <br />Worksheet 3: Graphical Peak Discharge method <br /> <br />Project ji)AC,,\L \tZ.UCiL ~ <br /> <br />Location <br /> <br />^at · O.a>63G;, mi2 (acres/640) <br />CN. 8~ (From worksheet 1) <br />Tc. (D. oOl!.-(FrOm worksheet 2) <br /> <br />Circle one: Present Developed <br /> <br />1. Data: <br /> <br />Drainage area <br /> <br />.......... <br /> <br />Runoff curve number .... <br />Time of concentration .. <br /> <br />2. Frequency............................... <br /> <br />3. Rainfall, P (24-hour) ................... <br /> <br />4. Initial abstraction, Ia ................. <br /> <br />(Use CN with table 7.l~6) <br /> <br />s. Compute I !p ............................ <br />a <br /> <br />6. Unit peak discharge, q ................. <br />u <br />(Use Tcand IA/~ with figure 7.1-5) <br /> <br />7. Runoff, Q ............................... <br /> <br />8. Peak discharge, q ...................... <br />p <br />(Where qp - quAmQFp) <br /> <br />" <br /> <br />By_ <br /> <br />Date <br /> <br />Checked <br /> <br />Date <br /> <br />Storm 1 Storm 2 Storm 3 <br /> <br />yr <br /> <br />,{ <br /> <br />too <br />r;. <br /> <br />in ~~ <br /> <br />I <br />I <br />I <br />I <br />( <br /> <br />in IO."Z.1 ~ 10.2."73 I <br />10. { l tt 10.04" I <br />csm/ln I (00 0 I to So I <br />in I j. z s I 4. ( I <br />cfs 11~ ,67.1 ~/. ~4J <br /> <br />10/89 <br /> <br />7.1-33 <br />