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il•uu: a. ai.ut ~uuonouu,.uu <br />nnu dt ~~tx iii ~ <br />may also be used to dize~: llev tei+asd an in9t=cam sand/gravel Sat <br />• or shoal to cause it to scour. Material acCeaaaDls for jttties <br />include lasae angular rock, large ~enldezs, Lock-filled gabiona, <br />and lags oz t;aes along of in combination with the pzecading :ill <br />materials. Jetties are generally cot effecsiv.: an curves having a <br />radios of lsaa than 200 Peet and one 7e:ty alone is usually not <br />suf:icient. eiivez eebhle, sand, gravel and otY:es eredaDle <br />material are net actaQtable. Jetties art aut:-er:zed uadaz this <br />RPG provided: <br />(a) The maximum extesuion of any jetty into a wacsrxay <br />shall not exceed 25i of the channel width to asauze that flaw is <br />not directed to the oppesita bank; <br />(b) Jetties Shall he spaasd eleae enough to prevent <br />scouring or scallapinq betveea the structuzss; <br />(e) The angle of t1e jetty and baakline should net ba <br />g-eater :hen 30 degress so that floe is 31_aeaed tawaz3 thn cenrer <br />of the stream Bathes than th• opposite Dank; <br />(d) Settles should ganezal'_y b• tzisnqulas in shape (as <br />viewed in a top or plan view) and canst,uction matsxlala m4:st be o: <br />snE~icient aise to vithstaad axpect~d high velocities cad turSu- <br />lencx; <br />(e) Jetties bast be securely anchoz:d irate the bank Eos <br />aevezal Feet to protect against uadercattinq and cizeumvension os <br />• the strurara by hlgh flows; <br />(f) Txses used ins jetties should net b. obtained from <br />• rlpartaa or rivezine aouzca; and <br />(g) Thn length of bankliae rbera betty constzuctioa is <br />perzosmad must net excand 1000 feet as measured Eras the £isat to <br />iaat ietty cenatructed. <br />:zia•a:ar*z::zxa-,tiatzaasrae*szizwftzaaaaaiitiazaaf*aa!*tl#!#zaalz*z <br />Th• dzsvinga attached to tnis notice provide typical examples of <br />the vozlc author fixed undas t:tis 1lGi . <br />•*wsaxa*,ta:esalsasww::#attsaatwtw*ssaawrwtewae#:itwa:ai:*ftsaawals <br />TH13 ON G N R L E H ~ 9U8,_„JECT T,~O '"H F9 LOVING SpEC2nt~ <br />ChNDI'!'I ONe z <br />a. llpoa aetidlcation #zom the Cozaa of Engineeza that work belag <br />performed does aot comply with er fall withia the aeoge a! this <br />pezait, the soaponai6l• patty shall take ismmdiats atape, as <br />directed by the Corps of Ps~Qineezs, to bring the work into <br />compltanea with Chia p•zmit. <br />b. Natezial may nee ba placed in any wetland areas ez la gay <br />location or manner which will impair surface vataz Plov into az <br />• ~ <br />