By: E!llsEcologicaiServlcos, M•Y 2012

Source: BLM REO US<7S2012

Corps No. NWP-2000-486/3

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Page 6 of 18

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SHEET INDEX

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COVER SHEET CONSTRUCTION NOTES PROJECT OVE'FMEW AND SIT£ ACCESS EXISTING CONDITIONS STOCKPILE AND STAGING AREA PLAN 0\IE:IiALI- CHANNEL GRADING PlAN CH-\NNEl. GRADING PLAN AND PROFILE CHANNEL GRADING PlAN AND PROFILE CONSTRUCTION SEQUENCE AND EROSION CONTROL PLAN CONSTRUCTION DETAILS RMGETATIONPLAN

PROJECT DESCRIPTION THESE DRAWINGS PROVIDE" PLAi>jNING-LE\1£!. DESIGN DETAILS TO AOORESS WATER OLI.oiUIY AND WATEfi SUPPLY CONC(IINS AT A DISCADE PACIFIC WATER INTAKE ON THE MAINSJ'El.l WILU.METTE RIVER, JUST WEST OF HA!._SEY, OREGON. THE PROPOSED PROJECT CONSISTS OF ACTIVE R£CQNNf:C110N Of HISTORIC SID( CHANNELS WITH THE WlLLAME'TTE fiNER AT ITS UPSTR£\M END TO INCR£ASE THE FlOW Of WATER PAST THE WATER INTAKE.

GRADING SUMMARY

GRADING SUMMARY PROPOSED CHANNEL: ITfM VO!!!Mf ({;!JSIC YAROS) cur.. 22.soo ffiL• W

GRADING SUMMARY STOCKPILE AREA: !Tfl.l VOl liME (Cr!El!G YARDS)

cur... o Fill.. 17,150

GRADING SUMMARY TEMPORARY ACCESS ROADS:

CUT= --0 fill"" 5,400

THE ASOV£ OUANTinES ARE APPROXIMATE IN-PLACE \IOLUMES CALCUU\TED FROM THE DIFFERENCE BETWEEN EXISTING GROUND AND PROPOSE"O FINISH GRAD£. EXISTING GROUND IS DEFIN£0 BY THE TOPOGRAPHIC CONTOURS AND/OR SPOT ELEVAnONS ON THE PLAN. PROPOSED FINISH GRAD£ IS DEFINED AS THE DESIGN SURfACE ELEVAnON OF EARTH TO BE CONSTRUCTED.

THE ABOVE QUANTinES ARE FOR PERMIT PURPOSES ONLY AN!I HAVE: NOT BEEN fACTORED TO INCLUDE ALLOWANCES FOR SULKING, CLEARING AND GRUBBING, SUBSIDENCE, SHRINKAGE, OVER EXCAVAnON, RECOMPACTION, AND CONSTRUCnON METHODS.

THE ABOVE QUANTITIES WERE: CALCUI.ATEO fROM .2008 UOAR OEM AND ARE APPROXII.IATE. THE GROUND SURFACE MAY HAVE CHANGED FROM THE LOCATION SHOWN ON THE" DRAWINGS.

GRADING OF THE PROPOSED CHANNEl WILL PRODUCE APPROXIIMTEL'I' 11,500 C'l' Of SILTY SAND AND 11.100 CY OF SILTY GRAVEL

CASCADE PACIFIC PULP, LLC SIDE CHANNEL RECONNECTION

50% DESIGN

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PINEGRO~

ICINITY MAP N.T.S. COOGLE

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ABBREVIATIONS AW. cc g~

lfb "· FG FT.

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AVERAGE CONCRETE CUBIC YAROS DIAMETER EXISTING (XISnNG GROUND E'LEVAnDN FINISHED GRADE FEET INCHES LINEAR FEET

~~~~ ,,. NOT lN CONTRACT NOT TO SCALE ON CENTER RADIUS RELATIVE COMPACTION ROCK SLOPE PROTECTION SPIKE SQUARE FI:ET

SWPPP rao 1YP

STORMWATER POLLUTION PREVENTION PI.AN TO BE DETERMINED

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TYPICAL UNKNOWN WATER SURf"ACE ELEVATION YEAR

GENERAL NOTES 1. PREPARED AT THE REQUEST OF:

JIM HARPER FOR: CASCADE PAC(F/C PULP, t.LC BROWN AND CALDWELL 30480 AMERICAN DRIVE 6500 SW MACADAM AVIt HALS£Y, OR !17.:548 SUITE200 PORTlANO,ORg72.39

2. AERIAL TOPOGRAPHIC SOURCE: WATERSHED SCIENCES, INC. 42.1 SW 611-1 AVE SUIT£800 PORTLAND, OR 97204 DATE" flOWN: SEPTEMBER 5, 2008

J BATHYMETRIC SURVEY SOURCE: SOLMAR HYDRO 88.35 N. EDISON ST PORTlAND, OR g720J

4. CONTOUR INTERVAL: ONE fOOT

5 ELEVAnON DATUM: NAVD88

15. BASIS OF BEARINGS: CONTACT BROWN AND CAL.DWEU.

7. INDIVIDUAL TREES WERE NOT LOCATfO DURING THIS SURVEY.

B. THIS IS NOT A BOUNDARY SURVEY. PROPERTY UNES SHOWN HEREON AAE APPROXIMATE, FOR PRELIMINARY PLANNING PURPOSES ONLY.

SECTION AND DETAIL CONVENTION SECTION OR DETAIL IDENTIFICATION )z

(NUMBER OR LETTER) 5

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REI'tRENCE SHEET FROM WHICH SECTION OR DETAIL IS SHOWN. DETAIL OR SECTION IS TAKEN

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PROJECT OVERVIEW AND SITE ACCESS

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ffiEPARED AT TIE FIEOUEST QF; PRELIMINARY! WATERWAYS CASCADE PACIAC

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~ EXISTING TREES (NOT SHOWN) GREATER THAN 18' DSH REMMO DURING CHANNEL CONSTRUCTION SHAll BE STOCKPILED ON-SITE FOR USE IN LOG STRUCTURES.

EXCWATED MATERIAL IS SILTY SAND OVER POORLY GRADED SILTY GRAVEL. STOCKPILE SILTY SAND IN THE STOCKPILE AREA SHOWN ON SHEET CS. PLACE :l FT MA>: OF SILTY GRAV(L OVER EXISTING HAUL ROADS. STOCKPILE SILTY GRAVEL TO BE USED AS BACKFILL MATERIAL FOR LOG STRUCTURES WITHIN NEW CHANNEL STOCKPILE THE' REMAINDER Of SILlY GRAVEL IN THE STOCKPilE

""' STOCKPILE LOGS AND BACKFILL MATERIAL TO BE USED IN lOG STIIUCWRES DIRECTLY ADJACENT TO CHANNEl. CONSTRUCTION ARE-\ AS OIRECTfll SY THE ENGINEER.

FOLLOWING WORK, RESTORE ORIGINAL GRADES AT DISTURBED AREAS ALONG TEMPOR,I,R'f AND PORTIONS OF EXISTING ACCESS ROADS AS DIRECTED BY TH£ ENGINEER AND SCARIFY TO PREP,I,RE SEED BEO.

STABILIZE PISTURBEO AR£6.5 ALONG CHANNEL BANKS PER THE REVEG£TATION PLAN,SHE£TCJO.

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BAR IS ON£ INCH ON ORIGINAL OAAWJNG,

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CONSTRUCTION SEQUENCE .\ NOTE: EXCAVATION OF PROPOSED CHANNELS MUST oCCUR DURING LOW FLOW CONDITIONS, CONSTRUCT NORTii SIDE CHANNEl CONNECTION FIRST.

!. INSTALL TURBIDITY CURTAINS AT THE DOWNSTREAM ENDS Of THE PROPOSED Cw.NNELS.

2 INSTALL COFFER DAMS AND PUMP PONDED WATER UPSTREAM OF COFFER DAMS.

J EXCAVATE PROPOSED CHANNElS FROM THE WEST 51~ OF THE" DOWNSTREAM COFFER DAMS TO THE EAST SiDE OF THE UPSTREAM EARTHEN PLUGS. ALLOW TURBIDITY TO SETTLE OR PUMP TURBID WATER TO APPROVED LOCATION

4 INSTALL TURBIDITY CURTAINS AT THE" UPSTREAM ENOS OF THE PROPOSED CHANNELS.

5. EXCAVATE AREA WEST OF THE UPSTREAM tARlliEN PLUG WHILE PUMPING TURBID WATffi FROt.l CONSTRUCTION ACTIVITIES TO APPROVED LOCATION.

6. REMOVE: THE DOWNSTREAM TURBIDITY CURTAINS AND COF"FER o,.ws ALLOWING WATER TO ENTER THE EXCAVATED CHANNElS.

7, REMOVE THE UPSTREAM TURBIDITY CURTAINS. EXCAYAT£ UPSTREAM EARTHEN PLUG TO 1' ABOVE LOW WArER 1'11EN REI.K/VE REMAINING PORTION OF' UPSTREAM EARTHEN PLUG.

ll. FOLLOWING WORK. RESTORE ORIGINAL GRADES AT DISTURBED AREAS AND SCARIFY TO PREPARE SEEDBED.

g, THE DEWATERING PLAN SHOWN HEREON IS SCHEMATIC. F1NAL PLAN WILL llE DESIGNED BY THE CONTRACTOR TO ACCOI.tMODATf CHANNEL TOPOGRAPHY AND WATfR LEVELS PRESENT AT THE TIME OF CONSTRUCTION. THE DOWNSTREAM COFFER OAMS MAY BE OMrTTED IF WATER LEVELS ARE SUF'FICIENTLY LOW TO ALLOW WORK TO BE: PERFORMED FROM THE BANKS (E G., BY DRAG UN£ OR LONG RE.A.CH EXCAVATOR), IN THIS EVENT, A nJRBIOITY CURTAIN WOULD STILL BE REQUIRED IN CONJUNTION WITH PUMPING AND/OR fiLTRATION, AS NEEDED TO COMPLY WITH WNER QUALITY REQUIREMENTS ~ET FORTH IN THE PERMIT CONOffiONS.

LEGEND -illll ~ i______c_:_J

EARTHENPUJG

EXCAVATION OF' AREA WEST OF UPSTREAM EARTHEN PLUG

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MIDSlOPE,TYP.

TYPICAL EROSION CONTROL SECTION SCALE:N.T.S.

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IF' POOR CONDITIONS ALONG THE NEW CHANNEL BED EXIST, AS DETERMINED BY THE ENGINEER, OVEREXCAYATE AND REPlACE WlTH UP TO 12"0F' GRAVEL.

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"MIRAF/ SILT FENCE" OR EQUIVALENT

1. DIG TRENCH FIRST, THEN ERECT FENCE IN TRENCH. BAC~Flll "'''D COMPACT SOIL TO SECURE FACiRIC . 2. PR0\110£ 1' MINIMUM OVERlAP AT FENCE SPLICES. J. SILT FENCE SHALL 8£ PLACED ON SLOP£ CONTOURS. 4. INSPECT AND REPAJR FENCE AFTER EACH STORM £V£NT AND REMOVE ACCUMULATED SEDIMrNT, TO AN APPROVED AR£,1,. gitt.!iNfEtB_~K~~INAnONS SHOULD Sf TURNED UPSlOPE TO

SILT Ei;;NCE @ SCALE:1oo2 C NOTCH LOG TO CREATE ROOM FOR

R£8ARBEN0(7YP).

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SEND REBAR TO CONFORM TO LOG SURFACE. MINIMUM RADIUS Of SEND (MEASURED ON THE INSIDE OF SEND) SHALLSEJINCHES(TYP).

~~(~;m CONNECTION ®

FIBER ROLL 12\ SCALE: 1"-1' '~a'

BOUNDARY FENCE DETAIL@ SCALE: 1 •4- CS, 7C

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LOG STRUCTURE NOTES

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(N) TOP'"' TOE OF BANK ~ n ·~

!0-,·J.··.'!··.:, .. : ~·. -~~~c~q.!f?!.T l.e~o :IS; LOG LOCATIONS SHOWN ON DRAWINGS ARE APPROXIMATE. EXACT LOCATIONS .,,.,..,LL ..,._ "~ ,...,,~,_,._I.J BY THE ENGINEER. BURY LOGS WITH A MINIMUM OF 4' COVER OVER A MINIMUM OF" 20FT Of LOG.

2 . .I..QGi:. LaGS SHALL BE COTTONWOOD OR CONIFEROUS, SOUND AND fREE Of SIGNiflCANT DECAY. fOR ClARITY, MOST LOGS ARE SHOWN WITHOUT BRANCHES OR R001WAOS INTACT. HOWEVER, IT IS PREFERABLE THAT LOGS BE SUPPLIED WITH THE IJAXJMUM NUMBER 01'" SRANCHES AND ROOTS INTACT, TO MAXIMIZE PE:RFORMANCE OF nJE STRUCTURES. MATERIALS FOR USE IN THE STRUCTURES SHALL MEET THE FOLLOWING SIZE" CRITERIA·

J . .QlJM.IDllES..:

ITEM QIA!.fU[R (!Nl lfNGIH CIT) CO!JNT LOG WITH ROOfWAD 16-24 .35-+0 18 LOG WiTHOUT R001WAD 18-24 .35-40 9

4. ~ CONNECTIONS SHALL CONSIST Of LOG/LOG CONNECTIONS, AS SHOWN ON DETAIL 4, THIS SHEET. PRO\IJDE A MINIMUM OF" ONE (1) LOG/LOG CONNECTION PER LOG, OR AS DIRECTED BY nJE ENGINEeR. ALL CONNECTIONS SHALL BE PI.AC£0 TO MINIMIZE \llSUAl IMPACT.

5. ~PlACE TOP OF FOOTER LOGS AT OR BELOW LOW WATE"R E~EVATIOI>I OR AS OJRECTEO 9Y THE ENGINEER.

6 ~PlACE SANOY GRAVEl (EXCAVATED DURING CHANNEL GRADING ACTMTIES) AS SALLAST MATERIAL, PLACE SANDY GRAVEL 2FT. DEEP X J FT. WIDE" TRENCH OVER THE BURIED LENGTH OF EACH LOG. S-I>.CKFIU TOP 1' OF TRENCH WITH SIL1Y SAND EXCAVATED DURING CHANNEL GRADING ACTIVITIES.

7. SJ.e.Sb'.: 20-JO FT. PIECES WITH BRANCHES RETAINED, ADD SLASH TO LOG STRUCTURES AS DIRECTED 9Y THE ENGINEER.

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LJMJT OF_PI...ANTINQ AND SEEDING ~

SITE PLAN SCALE: I ~300

!ABLE 1• E'LANIING

Location/ Elevation

ChenrmiEdge

'"" (3ftabow channel bed totopofbank andll!lmporary aCC!lnroadl)

Propagation Growth Percent Botanical name Common Nama Stza SpaclngJNotes Method Fonn of Group

4ft length, 0.75ta 2~nc:h

Comuaatolor!ll'era Retl.¢sl~rdogwood Cutllng diameter ~rage5110.C. ... ,.. 4fllllnglh,

0.75to2-lnch Sflllxeeoulerlana Seo!.!lerwlllow Cutlln tllameler Alerage51tO.C. ... ,..

4ft length, 0.751o2-lnch

Sa!lxlaslandra Paclncwlllow Cutting diameter Awrage5110C. ... 25% 4fthmglh,

0.7Sto:2.-incll Saltx&ltc!lenala Sib willow Cultrng diameter AYerageSIIO.C • ... ,,.

REVEGETATION NOTES IMMEDIATELY FOi.LOW!NiiCONSfflUCTION C0M?LrnbN, SEEii-CHANNEl-B.ANl<S-(J' ABOVE BED ELEVATION TO TOP OF BANK), TEMPO~ARY ACCESS ~OAOS AND THE STOCKPILE ARE<\ WITI-1 "REGREEN" 0~ APP~OVED EQUAL.

A SEED CHANNEL BANKS (J' ABOVE BED ELEVAnDN TO TOP OF a-INK), TrMPORARY ACCESS ROADS ADJACENT TO NEW CHANNElS AND PORnON OF STOCKPILE ACCESS ROAD WITH "RIPARIAN FOREST" MIX IN LAT! WINTER OR EARLY SPRING FOLLOWING PROJECT COMPLWON PER TABLE 2, THIS SHEIT.

B. SEE:O THE STOCKPILE AREA ANO PORTION OF STOCKPILE" ACCESS ROAD IN !.ArE WINTER DR EA~LY

SPRING WITH "UPlAND fOREST" MIX PER TABLE" 2, THIS SHEET.

IMMEDIATELY fOLLOWING SEEDING WITH "REGREEN" OR APPROVED EQUAL, INSTALl. FIBER ROLL AND EROSION CONTROL FABRIC AS SHOWN ON THE PLANS OR AS DIRECTED BY THE ENGINEER.

COLLECT AND PREPARE PlANT MATERIAL ON-SITE. PLANT NEW CHANNns (J' ABOVE BE"D ELEVATION TO TOP OF flANK) AND TEMPORARY ACCESS ROADS A[).JACE:NT TO NEW CHANNELS PER TABLE I, THIS SHEET.

MIX PLANT MATERIAL TO REFlECT OENSIDES OF EXISTING ON-SITE I.IAT£RIAL

DO NOT DISTURB AREAS OUTSIDE OF THE DESIGNATED LIMITS OF DISTURBANCE, UNLESS AUTHORIZED IN WRinNG BY THE ENGINEER. All ASSOCIATED RESTORATION AND REVEGETATION OF DISTURBED AREAS OUTSIDE OF THE DESIGNATED LIMITS Of DISTURBANCE, AS SHOWN ON THE DRAWINGS, SHALL BE BOURN£ SOLEL'r' 8'1' THE CONTRACTOR.

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Quantity

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PLAN

WET WELL

KEYNOTES: 8 2 NEW 7'x9' STAINLESS STEEL INCLINED PLATE FISH

SCREENS MOUNTED TO STEEL STRUCTURE.

® 2 NEW gx7,B STAINLESS STEEL MOTOR OPERATED SLIDE GATES IN EXISTING BAR SCREEN CHANNEL.

0 AIR PiPE ROUTED TO AIR COMP~ESSOR BUILDING,

0 EXISTING FISH SCREEN TO BE DEMOLISHED AND OPENING COVERED WITH STEEL GRATING, TYP OF 2,

0 PRESSURE REDUCING VALVE, TYP OF 2.

0 WATER SUPPLY FOR SWEEPING VELOCiTY SYSTEM (IF REQUIRED IN FUTURE).

0 MOUNTING BRACKET FOR FUTURE PIPING TO PROVIDE SWEEPING VELOCITY IF NEEDED.

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INTAKE STRUCTURE

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KEY NOTES: 0 2 NEW 7'x9' STAINLESS STEEL INCLINED PLATE FISH SCREENS

MOUNTED TO STEEL STRUCTIJRE.

CD NEW SLIDE GATE, SEE KEYNOTE 2JM100.

G) 2 NEW 9'x7.5' STAINLESS STEEL SLIDE GATEOPERATORSAND STRUCTURES.

CD SWEEPING VELOCITY SYSTEM PRESSURE REDUCING VALVE.

0 AIR BURST HEADER PiPING TO BE PROVIDED BY FISH SCREEN VENDOR

0 MOUNTING BRACKET FOR FUTURE PIPING TO PROVIDE SWEEPING VELOCITY IF NEEDED.

0 INSTALL GRATE OVER EXISTING FISH SCREEN OPENING

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INTAKE STRUCTURE FRONT

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KEYNOTES: 0 NEW INCLINED Pl.ATE FISH SCREEN, SEE KEY NOTE 1/M100, TYP

OF2.

0 NEW SliDE GATE, SEE KEY NOTE 21M100, TYP OF 2.

0 BLANK OFF OPENING WITH STEEL PLATE, TYP OF 2,

0 SUDE GATE STEM AND OPERATOR, TYP OF 2.

® MOUNTING BRACKET FOR FUTURE PIPING TO PROVIDE SWEEPING VI:.LOCITIES IF NEEDED.

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