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<br />DROP STRUCTURE PROP STRUCTURE G N d
<br />B -- t B a160
<br />D 4y B S D / _ 21' 9' B s 10' 21' •p C bid
<br />A 1-ipyl In
<br />GRWTED / /1 Q. GFtOU TED Ii rn l� pp
<br />li BOULDERS °
<br />!� BWLOEHS f f . -'. i in
<br />I IIF.: l ^:� 4 h.0 a J.8' 4 A W N W~ h d
<br />Vs � ND QED
<br />O
<br />J' MIN. M' [] N M
<br />36" MIN. STILL. GROUTED e 7 t� Y
<br />36" MIN. CRUIlEO BOULDER STILL. T 12' CONFESS TYPE K a v O
<br />ROUIDFR SILL I 1 }, RIPRAP, TYR. BOTH SIDES 73 N rn
<br />( h CT 7 v
<br />TYPE M RIPRAAP
<br />TYPE M RIPRAP }
<br />TYPICAL CHANNEL SECTION
<br />I TYPICAL CHANNEL SECTION .,
<br />UPSTREAM AND DOWNSTREAM OF DROP { r
<br />(UPSTREAM AND DOWNSTREAM OF DROP B
<br />B_ ,A'F��.
<br />��'F'� u
<br />_ J
<br />DROP STRUCTURE 1 - - DROP STRUCTURE CA
<br />x I
<br />6 : 21' B a 10' 21'
<br />TOP OF TOP OF ', , _ TOP OF TOP OF L.
<br />gun n, , \• : RUCK ELEVATION ROCK EEVATION $ryS1EM '"Aj~ t: ROCK ELEVATION L ROCK E1:EVATION 1 Q
<br />M - TOP OF q 4 ELEV. Ai RE$ NE 4 1 I
<br />IS TOP OF IA
<br />4. �'` •w.we.. w w•rA•r.w_ ,n Hrt ROCK
<br />MINE
<br />y 05 A Z V
<br />GROUTED � - -^ - :, ^A, •, 'J'- -
<br />' •�.M a ♦ li ..Y.: ?iP. IiL''u • •, w'y ... .t I. �.♦ A+ �t _ _ _ __ _rn>•1a� t ) C.
<br />BOULDERS, s]'r:. '3n.•'T.r.N.¢.v y,.. ,4i ^. aA.it. rr a/ t ^- d. LTI °
<br />W l �t GRWTED a
<br />�.
<br />_ L.
<br />'R ...r. ..J .,a -art
<br />w:.r: �. ^J:.T � °ef.....e.T rh!' .. •' " "- rSV� a.. ?'•. ��i. . -..` •A.... nr�. v. .. y �. I DEPTH OF CUTOFF i0 BE C �..,.i.•. �K. c•.- :.V' -. 4' %' � yy
<br />yr -•.`•. = ,•.:, ; & . _, !• i' i •Rr Y+'w / - "" : DETERMINED BASED UPON K -, .'L A•.'• .., - 1` 'v -r•
<br />DETER OF CUTOFF TO BF - A' f Aa {: M1 .� - +, +. ' .T�},:
<br />DETERMINED HASEO UPON +0'A �x •:P3P` A iT ,Z -H 7,. r r, -! *•'• CEOIECHNICAL INVESTIGATIONS H �- tii•: O 12
<br />AND GEOIECHNIGAL INVESTIGATION$ '• /.- _ - `T �� J IIF AND SEEPAGE ANALYSIS. IN THE . A SEEPAGE CUTOFF I 1-
<br />AND SEEPAGE ANALYSIS IN MF - SEEPAGE CUTOFF ABSENCE OF A SEEPAGE - ' -' Q ! 61
<br />- - ABSENCE OF A SEWAGE t� v ' '�nY�i ANALYSIS, SEE SEEPAGE CUTOFG J
<br />ANALYSIS, SEE SEEPAGE GUIDED DETAIL Q
<br />SEEPAGE CUTOFF SECTION C _TYPICAL CUTOFF SECTION C :E
<br />WS i e
<br />a
<br />NTS
<br />Q W
<br />W ISO w
<br />Q o To
<br />n a L • - } pNtTP STRUCTURE DROP STRUCTURE IJ v i I❑ m
<br />4 i f ..: a 2Y Bi19' 21 O I i jIO ,
<br />TOP OF ROCK TOP OF ROCK ELEV FvPRIWKES O O , 4�� S o cc TOP OF ROCK ELEV. VARIES , '
<br />ELEV. VARIES REV. VARIES I0
<br />LOP OF M , 0 1 C O
<br />4 LOCH I M1 11 .._. TOP ROCK ( _ _ I� _ W a € % r 0 n nl
<br />1E. lr __: 16 IS IL M
<br />DROP STRUCTURE PLAN ' U °'' DROP STRUCTURE PLAN .�U a
<br />ti UNDISTURBED SOIL - -' "- -" GRWTED BOULDERS m 0 m Im pjQ
<br />NITSNITS UNDIGRIRSEU SOIL, GROUT TED BOULDERS �r}� OR COMPACTFD �C!lV6 "`� 0- U 0; U F IU O I❑
<br />J OR COMPAC•1ED N 1 J MATERIAL
<br />MATERIAL M MIN, GROUTED TYPICAL DROP FACE SECTION -P'PICAL DROP FACE SE�
<br />B 8 2fi' ]S' ICY BOULDER SILL AT ,Rp E%
<br />- - DROP FACT DPfIF BASIN - END OF BAST N I J TUTS
<br />SEE SECTION
<br />TOP OF DROP STRUCTURE C DROP STRUCTURE I
<br />ROW OAOT IL /IL S 0.0 ROCK w CHINK OEiW WITH SILL B 1 �
<br />R 160' ` O
<br />BOULDERS MATH RIF RAP TO TOP OF r
<br />—� PREVENT SMAIIR RDGt TOP OF J8" MIN, CROUIED TDP OF 2I B' 10' 21'
<br />^ .y - _ ;= TOP OF ROCK ELEV, TURFED Lo B' ~ 20' ~ m 10' BOULDER 5111 ROCK REV. _ ROCY REV. AiNSILL 1 BWL ER 4 ROCK REV.
<br />AND TOPSOIL FROM ROCK ELEV _ m END $Or BAN E - TOP (IF 4 LOw AL-OW Q
<br />., ;� FALLING DOULDH GROUTED M DROP FACE PROP BASIN
<br />4 RE TWECN BOULDERS BOULDER RIPRAP 8' a °.
<br />•• I 0.00.3 R R ROCK SILL Fe TOP OF' LU
<br />_ 'rk I5 4 ,� ; FLOW M26IT II S 00 U ROCK CHINK N L _ „ SILL in
<br />_ -
<br />- ^11 �- BRIJ� RS WITH RIPRMC TO _
<br />UEPTFF vARIES SEEPAGE - r = AND TOPSOIL IFROMRO -' _ _ _ 'i
<br />SLE
<br />SF C IION.'ti. CII OFF S P OTAAIIN SYSTEM v1....lCY. .- - - - .r. - CHANNEL .. :C =... 1n FALLING THROUGH I - _
<br />Q
<br />11 [.:;:�:..
<br />arF DLTAII..Oj FE DE LO �CRANUTAR OFDDING __- _._. ___. .�.:.__ v _ ..- -.-.'. . ._ LOW ROW C EL I 000]6 0 11 - ROD .Y`
<br />Q O O
<br /><: 4 HEIWFEN BOULDERS UNDISTURBED Sql S TED BWtDRS Q
<br />TYPE MATER,R.(PIR ," \ INVIRI ELEV. Ai CREST
<br />GROUTED UOUI DEN$ M KIPRAP UDFCO REOUINEMF NIS) y ....... R .
<br />SEE OETAIL� UNTASTUROFO 50,1, _ I+. ', • N. ROUTED BOULDERS -" t 5 - -' r'" ,''',', J
<br />yT: : OR COMPACTED
<br />OR COMPACTED yl'1 - MATERIAL
<br />MATERIAL DEP711 VARIES SEEPAGE " -' - LOW ROW W O
<br />TYPICAL DROOP BASIN SECTION AND SILL SEE SECTION CUTOFF EP DRAIN SYSTEM. CHANNEL INVERT TYPICE I. DROP BASIN SECTION AND SILL E
<br />DROP STRUCTURE PROFILE -�\ M S - E SEE DETAILO OETNLO GRANULAR BEDDING
<br />GROUTED BOULDERS AWE MATERIAL (PER "' J O
<br />NTS A SEF BE FAIL M RIPRAP UDECD HEWIREMENTSJ
<br />a
<br />DAP STRUCTURE PROFILE J >. W 0 p..,
<br />Z (,% Z
<br />PROPOSED GRADE\ GROUTED HOLDERS
<br />TWSOIL IN ON;RBANKS CNL A,
<br />- Gncur LIMITS (nPPRrn.J
<br />� r
<br />PROPOSED CRAP GROUTED 7 TED BERS ` 2
<br />�K TOPSOIL IN OVER KS ONE DIFFICULT UNITS (APPROX.) O
<br />IXt v
<br />WT TO EXfEN
<br />0:8•,10 OR 4'. UDSTREAM OF BOULDERS _
<br />WHICHEVER ROUGHEN IOP SURFACE
<br />IS GREATER THOROUGHLY CLEAN SURFACE OF 6H(8T CUTOFF
<br />OF SEEPAGE C;IFMW PRIOR i0 5 WfF IV
<br />GRWBNO NO DERS. DEEP KEYWAY
<br />GROUT TO BOULDERS
<br />GROUT OR CCN RFT1 SEEPAGE CUIDTF - UPSTREAM OF BOULOFAS
<br />f OF GNEN TOP SURFACE Q
<br />THOROUGHLY CLEAN SURFACE OF GROUT CUTOFF
<br />15" MM OF SEEPAGE G DNGF PRIOR TO 6• WOE BY 4'
<br />/'� CROV ONC BWlDRS. DEEP KEYWAY
<br />SEEPAGE CUTOFF DETAIL / \ GROUT OR CONCRETE SEEPAGE CU O F
<br />NTS _�.1/J GROUT NOTES
<br />SLL IIF IAII- FOR GROUTED_ 4" N.;N PERFORATEO LATERAL PIPES SEEPAGE CUTOFF DETAIL
<br />UOVI DtF CONSIRUC.IION SPAT FD 10' OC.. MAXIMUM_ SLOPE AT 1% 1
<br />TO UAYTIGIR AT MAIN CHANNEL INVERT Material Specifications Placement Specifications NTS
<br />EI EV1ilIN. PIPE ALIGNMFNI.MAY BE CURVED
<br />SLIGPTLY TO FIT BETWEEN BOULDERS. Z
<br />1• All grout shall hove a minimum 1. All Type A grout shall be delivered
<br />�.
<br />__ 4" MIN. THICKNESS TOPSOIL G H
<br />COVER ABOVE LOW ROW CHANNEL 28 -day compressive strength equal by means of a low pressure (less SEE DETAIL FOR GROUTED 4" NON - PERFORATED LATERAL PIPES a_
<br />1 TOP HALF tIF BOULDERS to 3200 psi. than 10 psi) rout Um using a BOULDER CONSTRUCTION SPACED 10' O.C., MAXIMUM. SLOPE AT IA
<br />P P ) 9 pump 9 _ TO DAYLIGHT AT MAIN CHANNEL INVERT
<br />BURIED Ni PI LIOHILY '[ ^' ELEVATION. PIPE ALIGNMENT MAY BE CURVED U
<br />COMPACTED IN -SITU SOILS 2 -inch diameter nozzle. "S'T
<br />-�, ` SUCH FLY TO EFT BETWEEN BOULDERS. W
<br />TRIM PIPE END TO 2. One cubic yard of rout shall have
<br />PLACE. APPROVED GFOTEXTLL_� T` {�" MINIMIZE PROTRUSION ( ) L`^
<br />All Type B rout shall be delivered ,� 4 MIN THICKNESS TOPSOIL
<br />FILTER FABRIC OVER AND UNDER fi Tk ; �.I a minimum Of SI% 6 socks Of 2. yp g I COVER ABOVE LOW FLOW CHANNEL
<br />y /a" ANGUTAP. ROCK It) PREVENT AND T e II Portland cement. b means of a IOW ressure less
<br />CONTAMINATION BY GROUT AND YP y P ( ��uZ TOP HALF OF BOULDERS
<br />Soas � - than 10 psi) concrete pump using a a >:� <�;r BURIED TWM ucHTLY Z
<br />4'. PERFORMED MANI ,N
<br />FOLD 3. A maximum of 25% Type C Fly Ash 3 -inch diameter nozzle. COMPACTED -Stu SOILS
<br />PIPE. PROVIDE 4" TEES 3 /4" ANGULAR ROCK KEEP DRAIN PLACE APPROVID CEOTEXTLE I L TRIM PIPE END TO O
<br />TO I IERAL PIPES AND END FlL1R MATERIAL MINIMUM T may be substituted for the Portland RLTR. FABRIC OWR AND UNDER I 1 MINIMIZE PROTRUSION
<br />C REQUIRED FILTER 10 PI AN. f%!
<br />CAPS AS F THICKNESS SURROUNING PIPE f h grout J /4" ANGULAR FIX: TO PREVENT
<br />SYSTEM AI AL L POIN5 Cement. 3. FUII depth penetration o the g OU CGNTAMINATON Tr GROUT AND i Q
<br />into the boulder voids shall be SOILS W
<br />4• For Type A grout, the aggregate achieved by injecting grout starting Y fL
<br />4" PERFORATED MANIFOID =
<br />USE ONLY N DROPS HIGHER THAN 5 shall be comprised of 70% natural with the nozzle near the bottom PIPE. PROVIDE N FEES 3/4" ANGULAR ROCK WEEP DRAIN U
<br />p 0 LA IERAL PIPES, AND ENO
<br />FEET sand (fines) and 30% 3/8 -inch rack and raising It as grout fills, While CAPS .S REQUIRED. REFER TO PLAN. FlLIER MATERIAL MINIMUM 6"
<br />THICKNESS SURROUNDING
<br />WEEP DRAIN SYSTEM DETAIL (coarse). vibrating grout into place using a PIPE
<br />2 SYSTEM AT ALL POINTS
<br />5• For Type B grout, the gregate I m
<br />NTS pencil vibrator. WEEP DRAIN SYSTEM DETAIL
<br />2
<br />shall be comprised of X4 -inch 4. After grout Placement, exposed NTS
<br />maximum grovel, structural boulder faces shall be cleaned with w
<br />PLACE UOUIDRS AS TIGHTLY AS PO`SIULF
<br />IMM THE REWIRED BOULDER HEIGHT -- -- _ concrete aggregate. a Wet broom.
<br />VERTICAL -�� Q
<br />AND VOIDS FOR GROUTING MINIMIZED
<br />Type B rout shall be used in PLACE BOULDERS AS TIGHTLY AS POSSIBLE
<br />6. yp g 5. All grout between boulders shall be WITH THE REWIRED BWLOET�enc"a
<br />OP of ROCK LAYER SHOWN — w streams with significant perennial treated with a broom finish. AND VOIDS FOR GROUTING MINIMIZED
<br />W PROFILE AND SECTIONS
<br />-. /^ CFWS flows. TOP OF RCM LAYER SHOWN -
<br />m TOP 1 2 OF BOULDERS TOP OC (Xt011 tls P ON PROFU AND SECTIONS OT Z
<br />{0 REMAIN CIEAN 6• All finished grout surfaces shall be �<
<br />AND REE OF GROUT - F . ` TOP 1 /2 OF BOULDERS TOP OF GROUT �` '�2 Q [late: 06 28
<br />7• The grout slump shall be 4- inches sprayed with a clear liquid O REMAIN CLEAN �O1
<br />4- +f/E:�{.;
<br />AND REE OF GROUT
<br />SCAB i!' to 6- inches. membrane curing compound as �. Job No: 01 -202_
<br />NED specified in ASTM C -309. Ja. n,'awB: DBL
<br />H:y 8• Air entrainment shall be 7.5% ± 1X / \i
<br />76 Special procedures shall be required l go'
<br />,� I
<br />for rout placement when the air
<br />Chocked:
<br />PI ACE GROUT IN A MANNER -flIEORF GROUTING, CLEAN AIDE 9. To control shrinkage and cracking, g p L :I"
<br />ry U ➢IAt PELT ALL VOIDS TO DIRT AND MATERIALS FROM ROCK WS`
<br />THE SPECDILD GROUT THAT COULD PREVENT THE GROUT 1,5 pounds Of Flbermesh, Or temperatures are less than 40'F Of - Scale:
<br />G+ THICKNESS PLACE CLOUT IN A MANNER
<br />ROM BUNTING IO ROCK. equivalent, shall be used per CUBIC greater than 90F. Contractor shall THAT SPECIFIED ALL VOIDS TO BEFORE COULD GROUTING. CLEAN ALL
<br />ME SPECIFlED GROUT DIRT AND MATERIALS ROAf ROCK
<br />rRIPARE SLIBCRADE PER rd of rout. obtain prior approval from the THICKNESS THAT COULD PREVENT THE GROUT
<br />o HIT SPECIFICATIONS 9 P PP
<br />y design engineer of the procedures PREPARE SUBCRADE PER FROM BONDING TO ROCK.
<br />GROUTED BOULDER PLACEMENT DETAIL lo.Color additive in required amounts to be used for protecting the THE SPECIFICATIONS
<br />3 shall be used when so specified by grout.
<br />NTS contract.
<br />8• Clean Boulders by brushing and
<br />washing before grouting. GROUTED BOULDER PLACEMENT DETAIL (D
<br />e NTS
<br />Ne
<br />N
<br />4
<br />M
<br />3
<br />Sheet:
<br />DFA7 GROUTED SLOPING BOULDER DROP
<br />s DFA6 GROUTED SLOPING BOULDER DROP WITH LOW FLOW CHANNEL
<br />1 N1';
<br />s
<br />Of:
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<br />III FIK -1 r I If,T I
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