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North Eogkviacc Drninge eonoept Phose <br />COPICEPT'FLOW -CONVEY EA6I.EYIEW POPD EXCESS R.OW ACROSS 7p QITCH <br />We evoYnted the fofknvig three oltersntrs for the cmveyarrc of excess storm nnoff from the Eaglevier Pad <br />north ocoss the #3 Ditch to the proposed krge charnel on the Brm propo-ly ad thrn to the Fwv`d Pit pact- <br />1. Armor exisfog Eogkvrer. Pond spilhray ord bcdW 300• lag #3 Ditch wet <br />2. Sepoote Lesson Ditch it par chamd and fM.oe ova• #3 pitch <br />3. hbdify Eagk:view Pad spilhwy and build flsne over #3 Ditch <br />ALTERNATE! - ARMAQ EXI57ZAK fiPFLfYIEW ~.SOILLWAYA/JD BUILD 3A7'CGWS #3 pITC}/ h/EIR <br />This akertrate could reyuirc ro stnrcira+d modifiwtiars of the emtsg Eogkview Pard other then armonrg the <br />spilMiap. The pond would finction os desigkd by R6 Engineers, Inc The cutoff from the 2 yeor siorsn could be <br />compktey rrtoiced is the paid The 10 yeor scam rarW discharge 90 cfs peck flow through The 18' acct 36' <br />d~schage pipes to the #3 Ditch ritfi ro fbr ova' the spillsy. The 100 year storm wail dischovle over the <br />spilhvay to the #3 pitch ad then over a ree• to he corsfnxt'd it the north boric of the ditch. RG talaiated o <br />told lOD year ftor of 900 cfs sno The #3 Ditch fran the spillsy ord the disctra+ge pipes We esserrtially ogr+ee <br />riih a peak flan of 670 cfs <br />The weir wos shacvn as 340' kng in the Eagkvicrr Paid cansinrction pkns. Qr model edicates a rtes' Ierrgih of 300 <br />feet. <br />The ohengte scchxles a flew control sirvchre le the #3 Ditch dowretrean of the overfbr rdr. We siDed the <br />strucive as an open it k+ry, 8' wide by 6' high pour of carcrete wih with regrdls eedr ad. The stncirre could <br />be equipped with stop boards from the top down ord the sides it to restrict the fkatrr to arR'art i^i9ation needs <br />with flexibility Yo income far fuhre °T19ot10n sernrdoy rights <br />Velocities of up to 10 fps (feet per sward) an the Bitty, lardy soils of the Eagkviern Pad and #3 pitch will require <br />aroror protection for the spilh.ay ord the banks of the ditch This edterrote umbires: <br />• 0300' lag reir a the north bale of the #3 <br />• cancrvic cdlukr matirtss arma• <br />o from the Eogkviarc Pord spihrq artoff rwdl across <br />o the #3 Ditch ord the new weir <br />o to the ®m krge clrvnel <br />• large chapel to F St <br />• triple 4'x 10'x90' carmete box adva•t under F St <br />• chapel to itre east Eravd Pit pad <br />• carxxte calls fbw carrtrol stnrhr+e n the #3 Ditch <br />The site of the proposed sptlkray ord ditch armor is shown in the photo an the next pale The photo is token kdug <br />east, the Eogkvler Pond spilhrry le the areo on the right rith the caractc artoff .all jcrtt visible. All far trees <br />on the north bait (left side) of the #3 Ditch will Mw to be rerooved. The oonaete cdFdar mattress rill exterd <br />from the cutoff rdl, oQOSS the top of the spilhvay (the right bait of the ditch), dorr iMo acct moss the ditch <br />The north bmk rill be brervd 4' to 5' to set the rein at elevation 4689.5 to discfw~ge 944 cfs at an opeafvg <br />head of 1.05 feet. <br />The #3 Ditch flea control sirvretcae rardd be located rrmr the existig caretete wills in the ditch bottom. <br />Following the photo pogo h o perspective vier sketch of the torcrete cdfulm mattress armor insfolkd from the <br />Eogkvierr Pad spilhray, moss tfie #3 Ditch acct the proposed ter on its rwrth bole, and into the first 300' of the <br />Bun loge chmnel. The sketch shows space vegetation gcowig up thrv The operciw}s in the caraeie bbcks of the <br />ormor mattress, os has been experiared since corstnrction of the Eogkanew Pad grossed spills!'- The sketch oho <br />shows that the Trees m the north boric of the #3 Ditch wauW have to be rvnoved. <br />Page 13 <br />