l

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UNITED ST A TES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION

HYDRAUL I C MO D EL STUDIES OF THE T U RNOUT AND MEASURING STRUCT U RES AT STAT I ONS

1 05+85 AND 2 63+50 IN THE CAMINO CONnUIT S L Y PARK U N IT ~ - A 1Vi E RIC AN R I V E R D I VI S I O N

CENTRAL VALLEY PR O JECT, CAL I FORN I A

Hydraulic Laboratory Report No. Hyd. - 382

ENGINEERING LABORATORIES

OFFICE OF THE ASSISTANT COMMISSIONER AND CHIEF E NGINEER DENVER, COLORADO

April 16. 1954

CONTENTS

Purpose . . . . . . . . . . . . . . . . . . . . 1 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Recommendations • • • • • • • • . . • • • • • • • • • 2 Acknowledgement . • • • • • • • • . • • • • • • • • • • • . · 2 Introduction • • • • • • • • • • • • • • • • • • • • • • 2 Investigation . . . . . . . . .• . . . . . . . . . . . . . . . 4

Description of the Models • . • . • • . • • . • • . • • • • 4 Station 105+8"5 Turnout • • • • • • . • . . • • • • • • • 4 Station 263+50 Turnout· • • • . • • . . • • . . • • • • • • • • 4

Tests on the Station 105+85 Turnout Structure . • • • • • • • 4 Diversion into Turnout Channel--35 cfs •. • . • • • • • • • 4 Flow with Clogged Baffle Ports. • • • • . . • • • • • • • 6 Flow Confined to Main Conduit • . • • . . • • • • • • • • 7 Flow in Main Conduit with Diversion to Turnout Channel. • • • • • • • . • • • • • • • • • • • 7 ·

Emergency Spills over Skimming Weir • . • • • • • . • • 7 Tests on the Station 263+50 Turnout Structure • • • . • • 8

Diversion into Turnout Channel--20 cfs . . . • • • • • • • 8

Title

Location Map. • • • • • • • • • • .• . • . . . • . . . . • General Profile and Alignment of Conduit • • • • • • • . • • Station 105+85 Turnou~ Structure • • • • • • • • • • • • • • Station 263+50 Tu:r;-nout Structure • • .. • • • • • • • • . • • 1:4 Model of Station 105+85 Structure • • • • • • • • . • • • • 1:4 Model of Turnout Channel for Station 263+50 Structu.re •..• _ .•. Cut-off Wall to Direct Flow in Turnout Gate • • •••••••

. Baffles in Turnout Channel (Station 105+85) • • • • • • • • • 35 cfs Flow in Weir Basin with _Recommended. Baffles and Pool Length (Station. 105+85) • • • • • • • • • • • • •.•.

35 .cfs Flow in Region of Recommended Baffles-(Station 105+85) • • • ·• · • • . • • ..• · ·., • • • . • • •.. ; .- • • .• ·•

Flows of 35 and 125 cfs in Turnout- Str.uctur.e (Station 105+85) • • • • • • • • •. · .~ -.--· •. ·• • · •.• : •. •. • . • •

35 cfs Flow in Weir Basin with Clogged Baffles (Station 105+85) • • • • • • • • -• • .. • ;.- .. .. • • • - • ,· :.. • .•

Flow in Open Section of Main .Conduit (Station 105+8.5). • , • · -. .• 20 cfs Flow in WMr Basin with Recommended Baffles ,: (Station 263+50) • • • • • • · • • . • • ·• • • • .• .• • • . •.. • .. •

Figure

1 2 3 .4 5

··6 7. 8

.9

10

11

12 .13

14

UNIT~D STATES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION

Office of the Assistant Commissioner Laboratory Report No. Hyd 382 Hydraulic Laboratory and· Chief Engineer · ··

Eng~neering Laboratories Denver, Colorado April 16, 1954

Compiled by: W~ P. Simmons, Jr. Checked and reviewed by: J. W. Ball

Supject: Hydraulic model studies of the turnout and measuring structures at Stations 105+85 and 263+50 in the Camino Conduit .... Sly Park

; Unit•-American River Division••Cent.ral Valley Project,. Cali­fornia

PURPOSE

To investigate the operating characteristics and the flow distri­bution in tw.o turnout structures and .determine any design changes needed to insure -quiet flow in tbe pools above the measuring weirs.

CONCLUSIONS

1. Slatlike baffles in the tu:rnout channels (Figures 6 and SE) produce flow upstream from ,the weirs that is sufficiently tranquil for good flow mea.surements with the turnout. gates either fully or .partially open, or with flow passing over.the emergency ~kimming) weirs· (Figure: 9). Flow quantities in the turnouts will be deter.mined by recording the. head on a · sharp crested,. suppressed, aerated, rectangular weir, and using· appro-­priate_ standard ~eir tables.

2. The weir basins can be shortened 3 feet from the original length to le_ngths. of .21 and 1_9 feet, respectively (Figures 3 and 4).

3. . With the turnout gates wide. open and only the turnout flow entering the structures, the water surface in the structures will be low enough so: ~hat .'.the.re will be _no flow in the_ m:~in conduit downstream.

4. ·1Qthe event that the ports of the slat baffles become clogged, approxim.ate flow measurements can:still. be made (Figure 12) .. Clogging· is not anticipated-because the water enterill-g the conduit is clear and the line is closed e~cept_ at turnouts and vents •

. · 5. The skimming weir crests should be set at the,elevation of the energy grade for the normal main con<iuit discharges rather than at the hydr;EJ.ulic grade. in the short open ,section of the main conduit.

6. The right walls of the open sections of the main conduits should be at least as high as the energy grade for the maximum discharges

with flow occurring over the turnout skimming weir so as to prevent water in the compartment above the turnout gate from flowing back into the main conduit (Figure 13}.

RECOMMENDATIONS

1. Use the slatlike baffles and the pool lengths shown on Figures 6 and BE.

2. Place the turnout skimming weirs at the energy grade for the normal maximum main conduit flows. · ·

3 •.. · Raise the right walls of the open sections in the main conduit above the energy line for maximum flow with water passing over the tlirn­out skimming weirs.

ACKNOWLEDGMENT

The recommended designs for the two turnout and measuring structures are the result of cooperative efforts of the Canals Branch and the E.ngineering Laboratories of the office of the Chief Engineer in · Denver.

INTRODUCTION

The Camino Conduit is a concrete pipe line which transports untreated water westward from Sly Park Dam to the town of Camino about 60 miles east of Sacramento, California (Figure 1 ).. Most. of the water will be released into an existing irrigation distribution system, and the remainder will be used domestically, The outlet works of Sly Park Dam, which supplies water to the conduit~ is discussed in Report Hyd 383,

Two turnout structures with water measuring facilities are · located along the conduit at Stations 105+85 and 263+50 to divert water into portions of the. existing irrigation system lFigure 2). · The first structure .receives flows up to 125 cfs and diverts 35 cfs (Figµre 3). . The second structure receives up to 90 cfs and diverts 20 c.fs (Figure 4}. The rate of inflow to the conduit is measured by a venturi meter at Sta­tion 3+80 and the rate of flow in the main conduit below each turnout structure· is determined by subtracting the diverted flow from the con• duit inflow. This requires measurement of the diverted flow, and each turnout structure was designed to include water measuring facilities. The rate of diverted flow is determined by measuring the head on a suppressed weir placed at the downstream end of each turnout channel, and using suitable discharge tables. · An automatic recording instrument operating in a small stilling well tapped into the side of the weir pool wilt.· be used for the head measurement.

2

Flow into the turnout channel may. occur in three ways. In the first and larger structure the inflow at times may not exceed 35 cfs and all this flow might be divert~d ,c;mt of.the main line. The water entering the structure would flow down the sloped floor and· plunge into the pool in the bottom of the structure (Figures 3 and 1 lA). It would then pass through the fully opened turnout gate into the turnout channel, and "after passiIJ.g the stilling baffles wouJd go through the weir pool and over the measuring W¢i~ ~o the d.itch of the irrigation system. .

_· At. flow rates greater tha.n 35 cfs, where part o~ m~st of the water continues. down the. m'ain conduit, flow into the turnout channel occur.s through the partly closed gate,. The gate must be set. to· thro~tfe. the turnout !,low {o the desired amourtt, . up to the maximum of 35 cfs, . and to .hold the wa,te,r sur_ta.ce. _in ;the main structure high enough to pas,s flow : on down the ma.in conduit. In the first .structure this imposes a head up . ; to 10. 2. fe~t Qn the gate (m,e1;1.sur,ed from the water surfac.e to the· invert .. of the gate. opening) ..

The mairi condui~ upstream Qf the turnout is capab_le of carrying up to 125 cfs, whereas the main conduit downstream has a capac.ity of • about 90 cfs. During routine operation at the maximum flow of 125 cfs, 35 cfs will be. diverted through the- gate and 90 cfs will GOntinue jn the conduit. An abnormal condition could occur, however, .if the turnout gate· is inadyerte~tly .left -~losed. and 125 cfs is released from the da~, , .

. To prevent :;ubse:qu¢,nt .floodit}g of this turnout and other structures down'." stream,. a ·spil;lway or ''skimn;iing weir" is placed above.the turnout gate to skim off water wheh the ·p,ooLqe,pth exGeeds that .wh.ich will suppJy 9Q' cfs to the conduit downstrea'rri: . The flow over the weir drops int;o the upstre~rn end.of .the "tur~out channel and i~ ziieasured int-b,e same way as normal releases. · · · ·

The second turnout and measuring structure (Statio~ 26.3+50) is . generally similar in design and operation, but is smaller {Figure 4). The maximum flow in the main. conduit upstream is 90 cfs. and the maxi-­mum diverted. flow 20 cfs. - 'f.he head.on the gate with 70. cfs continuing . in the ·main conduit:, is, 1a. 5 feet. . . . . .

. _ Reg~rdless of whether w~ter enters the turnout channetth.r~µgh_ the full open gate at low heads, through the partly closed gate at .higher heads.,. or ove.r the skimming we:lr., the rate of flow. must be measured . before the water leaves the turnout structure. To obtain. a reasonably , . accurate meas.urement of the head on the weir, the surface of the ·weir-·· pool must be fairly .smooth. And. to apply the standard suppressed rec-. tangular weir forr;nulae, the fl<>w must approach the weir with fairly uniform velocitie& ac:r;-oss the. c.hannel; Th~s requ.ires effe~tive. baffling. __ if the length of the channel Is to be kept to a p:racticable minimum. To assist in design_ing t}:le baffles and ·other p9rtiol'.ls of the structure., and to insure that the general flow within the over-all structure was satisfactory, hydraulic model studies were requeste(ir The 1:4 scale n:iodels used in these studies, and the results from tests made on them., ·are discussed in· this rep9rt. ·

3

Station 10'5-+-85 Turnout

INVESTIGAT.ION

Description of :the lVIodels. 0

A 1 :4 scale model was built of the Station· 105+85 turnout struc­ture (Figure 5). A 100-inch long section· of 18-inch horseshoe conduit, preceded by a 30-inch long transition fron1 the horseshoe shape to a 12-inch circular pipe~ carried water from the supply system to the turnout structure •. · The.main portion of the model was formed of waterproofed· plywood. Sheet metal was used·for the transition sections arid for the . 12-inch diameter section of downstream mairi conduit. A lightweight . metal slide gate on the end of the main conduit section permitted regula­tion of the conduit flow. A heavy gage,· 9- by 12..,;ihch sheet-metal gate regulated the' flow info the turnout channel. A 16:..gage, · sheet..imetal blade formed the skimming weir on the wall above the turnout gate, and · a machined 1 / 4~inch thick blade was used for the mea~uring weir near the end of the turnout·chahnel. Wood was ·used for· the weir basin still-ing baffles. · ·

· Water:was supplied'to the model through the permanent lapora• tory system and the rate df flow wa~ measured by calibrated venturi · · meters. Piezometer st~tioris were provided at appropriate points in the

· model to enable· measurement of the water depth 'and. head·. , The water was regul~ted to correspond to the calculated hydraulic grades by pattlf clos­ing th~ ·g~'te on· the downstream cond.uit ~~ction a~d by cr~ating slow veloc­ity flow in the horseshoe inlet by means· bf a gridlike obstruction near the upstea.rii end.·· After passing through the model, the water returnE!d to the laboratory reservoir for recirculation. · ·

Station.263+50 ·Turnout··

·The studies on the Station 105+85 structure showed the turriout channel and weir· basin to be the places wher.e ,the design was critic~!. . Model studies for the Station 263+50 structure were therefore limited to the channel and basin of a 1 :4 scale section buUt into the existing Station 105+85 model turnout channel (F~gures 6 and 14). The height of the gate was reduced from 9 to 7--1 /2 - inches by a filler block .at the top of the opening, and the height of the skimming weir abo~e the channel floor was : raised bt-~' bulkhead. The true equivalent height of the prototype weir .- · could not be easily represented. because it would have been higher than , the· sidewalls ·of the model. A height equivalent to 12 Jeet·was obtained, ·· and t4i.s was considered adequate becaus·e the maximum 'prototype water depth with no flow ·over the skimming vyeir will not ex?eed 13. 5 f~et. . ..

Tests on the Station 105+85 Turnout Structure

Diversion into Turnout Channel.:.-35 cfs ·

In the initial design. water entered the compartment above the turnout gate with a clockwise swirl. and thereby induced a sideward

4

component to the flow going through th~ gate .(Figure 7, A and B). . 'l;'hus. the flow did not enter the turnout channel along the channel axis,. but. · • • tended to flow along the right wall and to create a counterclockwise eddy in the basin. Cut-off waUs:were placed in the lower op.ening from the main conduit to direct the flow more· square'ly into the gate opening. The walls extended. 14, 17, an4 l9 inches upstream from the gate wall. The 1 7 •inch wall was.the shortest that w.ould perform adequat~ly (Figure. 7, C and D). An lB•inch:.•lo~_g wall. (72 inches _prototype). was s~lected_ .by,.tl'le. designers and all subsequent tests were made with this length wall in · place. · · · ·

The conce~ti,aJed sitream from. the 12•inch wide ,gate c.rea.ted._ . large disturbances in ·the relatively short, 32~incb wide weir basin. . Dispersion of 'this. stream could be accomplished by increasing the length of the basin,. but such a bas,in would be uneconomical and difficult to (it. to thefield terrain •. A short q,nd mo~e economical structure was .sought which used baffles in the path of the flow to force the dispe:rsion~ The first model baffles were blocks 12 iriches high and triangular in cross section witb 4-inch std~s (F~gu;re 8A). The blocks were moved about in the. area just dowristrea,m from the .gate uptil an arrangement was found that was fairly eff~ctive in spr;eac;ling the flow whe.n the ,gate was .fully. . open (Figure BA) • .' 'N"o ~rrap.gerneri.t w,as. found that was·satisfa.ctgry for . partial gate op~µin,gs Vtfhere the head. 6.n the gate was inc~,ea.sed •. The . addition of a vertical curtain waH 15 inches downstream from the blocks improved the .flow. The bottOIXl .of the. w·alJ was 7 inches above the po'ol floor and its. apparent effect was to. confine the c.hoppy waves to.the up .. stream part of the channel. A second wall 12 inches downstream from the first a.nd with the bottom 6 inches a"Qov:e the fle>or further improved · · the fl<>w. However, the flow was. stiU riof~atisfactory at partial ·g~t·e ··.· openings when the water a.heaq of the gate was at or near the elevation of the skimming weir. . · · · · ··

.. . The two CIU"tain walls were re~o.ved and a baffle with·a· draft ... tube.;.like passage installed (Figure. BB). The triangular blocks were· '. retained. . The flow conditions resembled those with the sj.ngle .curtain wall and were not satis:factory at partial gate openirigs. In addition, .. when flow occurred over the skimming weir, the plunging nappe en..; trained air which pas~ed under the baffle and surfaced in the weir pool. Cons.iderable wave actipn resultec;l_. · ·

The triangular blocks were replaced with four vertical 2:.7/ B•inch_. wide slats set 3/4 inch apart.with the center openi~g on thli!. chann.el center line (Figure BC). The baffle. with the dr~ft tµbe-like fl.ow passag~ . was lowered to a point 7 inches above the floor. Heavy currents occurred around the ends of this slat baffle thereby necessitating an additional slat on each side. The smaller currents that :still persisted were largely . eliminated by 3/4•inch square slats attached to·the sidewalls (Figure Se)~ Good distribution was obtained at. full open g~te, but when the gate was partially closecf too much water went through the center portion ot the. slat baffle. Better flow at partial openings resulted wh~q the center

• ' • .. , • • ' ' J ' ••

5

, opening was closed. Air entrainment·continued to be a problem a:t the downstream end',of the baffle with the dr~ft tube-like flow passage and a eurtain·wa-11 was'placed -3 inche·s downstream from it arid 1 inches . above the floor. Improved flow resulted at the weir.

_ Because the baffle with the draft tube flow passage appeared expensive to build· arid because its length ·occupied valuaqhf space in the ·basin, ·;it was removed and replaced by a vertical curtain wall dl­rectly above the slat baffle openings {Figure 8D). A second curtain· · wall was placed 12 inches downstream and 8 inches above the floor. Good flow resulted in the basin for all types of operation, and little or no air 'passed the second wall_ when the· skimming w·efr operated. The best flow _at partial gate openings was obtained with the center baffle slot closed~ · At full-open gate the best flow was obtained ,with the s,lot open. In gener·al, the flow at all op·erating conditions was considered .• qu1te s.atisfactory with the center slot closed,.· and there was a possi- ' bility that ~he weir pool could be shortened 3 feet. ' ·

. ·. . The ·model was changed to represent the shorter basin a..nd ~he . '_ skimming weir was raised the equivalenf 'of 6 inches to ct>rtform .with the · computed energy elevation in this portion of the aqueduct_ (Figure ~). Re­finements were made in the de·sign of the baffles to ease their c·onstruc- · tion and to obta:iµ· 'a low loss of head so that at 35 cfs the pdol upstream from· the turnout entrance would not. rise high enough to pass water. on dowri the main conduit. The baffles and basin recommended for use iri the field structure ar·e showh in Figurea.E. -- The flow in the w~ir' pool with 35· cfs fi<>wing and with tlle· ga:te fully opened~ or partially closed. with the tip'stream water surface·at the elevation of the skimming weir, or fully closed ·with all 'flow over the skimming weir, is shown in Figure 9., A, 'B, and C. Good flow exists for the normal operating condition of full or partial gate openings and reasonably accurate determination of flow is expected by means of the head recorder and standard tables for suppressed, aerated, sharp bladed weirs~ At the in.freque·ntly expected emergency operating condition where flow occurs over the ·skimming weir, the pool is not sb quiet, but should permit an approximate meas­ureme~t of the flow. This .is con1;1idered adequate by the designers.· · '

The action in the region of the baffles is shown in Figure 10, A, B, and C. The water surface and hydraulic jump within the turnout st_ructu_re entr.ance with a flow of 35 cfs, all diverted to the turnout chan­nel through the fully opened gate, is showri in Figure 1 lA •. The water surface for a flow of 125 cfs with about 90· cfs passing on down the main ~oriduit and the remaining 35 cfs over the skimming weir, is shown in 'Figure 11 B. ·

Fl~w with Clogged Baffle Ports

, Little or no debris_ is expected in the Camino Conduit, and there should be little cfo1nce of the baffle ports becoming clogged once construc­tion debris has been removed. However, it was believed wise to dete~ine

6

the flow conditions that could be exp.ected if the baffles did get C'logged. The flow is shown in Figure 12 for the gate fully and partially opened, and for flow over the skimming weir. Approximate measurement of flow will still be possible.

Flow Confined to Main Co;duit

In the preliminary design the elevation 9f the skimming weir crest was set to the hydraulic grade line at the open section of the . main conduit for a flow of 90 cfs. The hydraulic grade was lower than the energy grade by the amount of the velocity head in the main conduit section. The water in the compartment upstream from the skimming weir is brought essentially to rest and its water surface approaches the elevation of the energy line, thereby exceeding by the main conduit velocity head the hydraulic grade and hence the weir crest. Water therefore overtopped the skimming weir before the desired flow of 90 cfs could be put down the main conduit. It was necessary to rafae the weir 6 inches so that it was at. the elevation of the energy line (elevation 3321. 37) for a 90 cfs flow (Figure 5).

Similarly, in the prelimimary design, the top of the right w~ll of the passage leading to the main conduit was set to the hydraulic grade. With the weir raised to the energy grade, flow occurred across · this wall and into the stream flowing-in the open section of the main con• duit (Figure 13A). Th,e undesirable cro,ss flow was stoppeq.and.the. flow conditions improved by extending the wall above the energy line. (Figure 13B). · Some turbulence still occurred in the model at the conduiten• · trance because of the sharp corner in the model. Little or no turbulence should occur in the prototype structure because this joint will be well rounded. (Figure 3).

Flow in Main Conduit with Diversion to Turnout Channel

No unusual conditions occurred when part of the flow passed down the main conduit and the remainder was diverted through the partly opened turnout gate. The flow into the main conduit downstream occurs as though no flow were being diverted., and likewise_ the diversion occurs as though no water were passing in the main conduit.

Emergency Spills Over Skimming Weir

The 35 cfs emergency spills, which must occur when 125 cfs enters the structure and the turnout gate is partially or completely closed, are adequately handled by the skimming weir (Figure llB and 9C). The head required to create flow over the weir is communicated to the open section of the main conduit and this produces a flow slightly greater than the 90 cfs for which the conduit is nominally designed. · The slightly increased flow is not expected to cause trouble.

7

Tests on the Station 263+50 Turnout Structure

Diversion into Turnout Channel- .. 20 cfs

On the basis of the information obtained in the studies of the Station 105+85 structure, it was believed that only the turnout channel of the Station 263+50 structure required model studies. For conven­ience- and economy the 1 :4 model channel was built inside the existing Station 105+85 model turnout channel (Figures 6 and 14). The initial baffle design was patterned after the one developed for the first struc• ture, and similar curtain walls were used (Figure 6) •

. The flow conditions in the weir pool were good with the turn• out gate full-open, but were rougher than desired at partial gate open-ings due to excessive flow through the two middle ports of the slat baffle. Good flow at partial openings. was obtained by reducing the width of these two center slots from o. 94 inches too. 50 inches and by widening the center slat to 6. 63 'inches. The improved flow at partial openings came at the. expense of slightly rougher flow at the full gate opening. As in the first structure, this compromise is satisfactory because most of the field operation will be at partial openings, and because even at full opening the pool is adequately quiet (Figure 14, A and B). The pool should re• main sufficiently quiet for an approximate measurement of discharge even when emergency flows occur over the skimming weir. No model studies were -made for this condition. Some air will probably be carried into the weir pool, but not so much as to cause serious difficulty. No further alterations or testing were believed necessary and the program was terminated.

8

Interior - Reclamation - Denver, Colo,

R,IOE. R.11 E.

INDEX MAP

R.12 E.

: ~ .&.I .LI .Ll-'?--,,.,'-l ,--....11.,...-',I .,,-....1-..... f SCALE OF MILES

FIGURE 1 REPORT HYO. 382

R.13 E. R.14E.

UNITED STATES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION

CENTRAL VALLEY PROJECT - CALIFORNIA AMERICAN RIVER DIVISION-SL.Y PARK UNIT

CAMINO CONDUIT LOCATION MAP

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~:f-----t----+-----t----+-----t--,:-.,...-,,=-':-=-:--=-:---"-25,c.B::..:..f-;-2,:;B-,:;;,A:'"'---'rtt~'";·•-,---_H--CG:"C.;:"3~/9';;2;-,.;'-3;;-5-;--7 //,- -- -- - - - :, - - ~I --f - ~

_ _T_Jt-};11Z{LQN_ ___ :--- ''---Z!I!'.~~~;-- !~I ~ ~ ~

N I -.......... : .,. '

c5 '--_-_-_-_-_-_-_,._-_-_-_-_-___ _,_ _____________ _,_ -----_-_ EQUA Tl ON i-~/} ;-JJ t~1{1

-'- 12~6

~ +t26.}0~oy

79_--=---'=-~""f--_+-~~- HH .. G

6. _3

311175

5.

1

,_~7~:::---2- - - - _ _ ____ .Y i L __ .i 263 t-23

- --~----T~---lT26i+60 ' C, '

N _TRANSITION __ -- _f!cG.3174-.78__ _ _______ : _____ ! _t_'

c5l----+----l----+----1-----1---- 269 r20 H.G. 317 3. 53-1 1

~i------f------+-----+---+---,~/-----+----+--t----t-----7 '

a ~----

..., ~--· ..., :i: C -< § <:>

" ~

g 0

"' h,

n r--,, ~ r;;

0 rri ~

-~ ~

"" ~ "' --< --t

g

130

VENT 237+20

, TRANSITION ,' --~---- 238t/5 ----

~~o,O

:'l:1--------+-----+----+------'('r-+------;.--+-----

0 ~-7 - h ... :;;· c::: :::; "' ,-. °'

290 ::::. R d I Dirt J ",~ ·: pr,vate ao

;:; I

C"l °' ~ -I' h ..

g ----

k:::::::~ <:> "'· ;;; C: "1

"' -6

~ - - -- - --~ -- - - -EQ /ATIONI }.l_5_t_7J._4-J§K_, __ ---- ------ -------

---------- ; 3 4- t59.72Ali,

~1----+----1----+----1---....::::::,j., ____ l--_--+--11---1----+----t

::~~~----l-i-----1-~----+------+-----,.==+=\_=-...:·__:::::::i,-=--+--+----t----t------j

0

o TRANS T/ON ----------- --- H .. 3123.87 __ ------

- -- -- - - EQUATION [ :}~§ !{1i,?_l_Bl<'_J_3}! 5<! - -- -- _':_-_-:. ·::::.-:~ --- -H G.3124-.70- - - - - - -- -

Ci)

i 334t57.41 AH. __ W:!L_~_ 336+00

"' tl-----1------1-----1-----1-+1---+----+-------;

~~ ~ f ..., » gl-----+-----TRANSITION _____ ;--- H.G.3121.64

V C"') ~~~~

I

iii

"· ' I '

l.336 t-00 __

' ' ... -------+----7-_y_ i ' I .;; "'

: ~ I~ ~ 350+00 "' H.63,120.39

::0 !I> b ,.~ l!: () o i:: ~~~~c 01----+---r-+-,~-r--+----H1----H-.G1-_-3-,o-9 ___ s_3_t-----1 :

-o:;;~r-ct~ ____ R~ff,,Jl.0.fl_ r ________ _,___ , ,

., ._ :.r;; 0~1'11 3631'80 __ _,, H G.3110. 66 __J_6_5_f_2_5 __ L_'~---=-=='t_-_::-: _ _i j:::: ti O I)--<"~~ I _ v_E_NI _ _ _ 1

} H. G. 3 1110. 08 _ _ ______ r- ________ -,;

C, !ii

, , 336+ /6.27 BK' -~--EQUATION) 334 +»41 AH

--• County Road No. 33

n, C") ~,.~~~ Ofl----+----+-----+3-6_s.,,,_::.9;;.;:-:.;-~~q;=::,...H._G_._J_10,_,9 ___ 9_1 __ +_,==:..=,--355t9, : r T : .... 1 <.M:~

:bi,~ ~ ~~~~~ (5 __ TRANSITIOJV _ _,< '--...HG.3109.70 __ / ! ;t ' ~~ C::: ..: - ~ , :';::~

)::,; I:) r-'-~"' 369tl5 H.G.3108.4-5 -• .. _. ~ .. ::: ">. ;; .,<> <.,' -.,.,,

;: • ~ -<~ ~i- Q - "l'" .::,. 1/)~ ::~ ca,1- :ID

t:, (N --t "1--tQ~ - ~ Q r-<b :t: ~!? ;:,~ o;~ '" • ~ ~ ~ =t~ ~1----+----l----+---+al----+----t-----t ~ i ~: ~ ~ ~ ~ u.: :~ ;! _ r- .... 't )a ~ 0

:~ ;;: ~ ~ ; :; 1 4{ _ ____.,,,,,,,,.. •.;.:

i ~ §~ : : ~ : i.l ~ .~ ~3- ~ --= "'~ :;· ________ IE_~N!//'-ti-f_I,;~llCJr«----- !iG~~~9_:5._01______ _ ______ j ___ + "'-Y..387:48.68_ g 'z. ii~ t"' g: * LN----N-1------N,.___ ..... __ "'-L-----... J......-----'-----i:::'----~.,. ... ~ • N

... ... g"' :3 80 0 8~ 0 ~ :;;..,• c; g O O O g "'~ W

L-.Ll-.;....;.....L_ ... ..:.... ___ ..._ __________________________ ..;.~ ___________________ ___.~

Endafcutand ~---- I9 '-o"- +- --e'.o"--- --->«---------13:0" '"'

cavl'rsect,on·-- -~-e: : ' --~: . r- ,' " ' ' ,' ~: :: . ::: I

Contraction joinf _______ ,., , ,-6 Rubber wotersfop :-.£ ~ ..fl._ .._, .,., ,For grating and frame ::; a

'' .- / / ,::; I · 'c:, ~: ,' ~ / details see Dwg. / !;

~~ ~~ "'<>A

------, 1 ------------- 1 !' - -~,' l,: 540-0-/53. I /

,----- =-=--~r-~-=-:::------- F=r;!=;r=======r====.!i , ---c_-::,--------f-

1

.- /

" ,;- '-+---,,-,.,--~"' "'"" <.., ±

105 f 82.50

I I

"-C:,

"'., .,, ., I I

- ---+-__ _j_ _______ _

- "' ~ ~~ Q.,·~

"'t; '--., ~.,,

'·1o'Gate as directed.

' ' $

I

I I , L,..

B I

/ Q ., 9 I

I

I I I

I

~----Chute

·-~ is~ ---F

PLAN OF CHAIN LINK FENCE For details, see Dwg. 540-0-153.

~ "' ., ., ,

I , '

, , ,

- --- -5'-8 " ___ __, -,.i,o·tc-- 4 '- o~-- ,-..1o'"i..:-

.-.J- : : . ' . "' , T-

~;~~----~: 8 ;,~";,_-_- :~;;~

' . '

-<: ( ~"-' c¥; o_j

:~ i~~

:::: : ~ ~~ ..,,,q.' ~

~ ~~-- /\

' : ' , I : I:::,,

- "'

/ I -- -- -- :::: I .,,;L-- ~ '- -l -., .... -- -- --- I~ I :

c::::, [ -'--:-::,t;;---t--t------- -_-_-...,l~'t-l-+-----~

\~ \

' J{.

"' ., ;:: ~,o~-

,<-

#.4/ji)t2"Balh

., ,7'1_8'. wayseL ... -:;;, I DI -1 I I I "- I t ti

' I 'A.. I\ I / - ,, :/ ' ~

i__

f~J··. ,tt

-4'-o':_11 ,,i .·

10"

1,~/

PLAN

SCALE OF FEET

a"~

/ t.e,..e/ l'o,o

Symm aboutf

, I

I I

I

, I

I I

I

, I

I

I I

: T-tJ.Jr===,1r1 •' c::, c::, \-\ 1 r-10"

·-:;:"r# 4 (!I) 12 "Bath ways

#4@ 12"Bafh ways------

----- Cut-aft walls at each end and m,d point of chute.

_, _, ,;-

I

'I-

i i-11:-~JJ . .L S? -f

- :, each face. . 1 . , .,1 /!\ J....t .. b.--.--Th,swat,;s 6_-o onq

~---·-· -~ as shown ,n plan.

__ . .J/4@12"tn center of cut-off Bend short bars 1s"i11fo chute .

") .., SECTION B·B SECTION C-C SECTION D-D

/<---- -------- - 14-'-8" 10.:',.!. I-<"-- --11'-o"

El 332 7. 25 : : (;_rating-

Top of Backf,n- ·- . ., -, ,,.*..._,~ .1?): :"'\''"C::'/,,( "3',J,>-:;;:,-,"SJ-,1 '.Y ,._' ;'_'~- ,//,>·'' ·,-,, ,·::···L odder not

y -

SECTION F-F

' - - - - - - >-I

' - >-I k-/0"

106 t34./4, 1

, I

Gate lift not shown.--

.,._ 2";Hole. ~-2:5"

Original ground For profile and al1nement of surface.. chute, see Dwg 540-0·IJI.

,,\,,;;;~_ ;;:,:·: ::::; \ -~ ~ .

II t\j '1

'I,,,_ ,0::

FIGURE 3 REPORT HYO. 382

/Orig,nal ground surface ______ _; ____ -----------~

_JA i /

'fL-~ # 4/ji)/2 --~,-.,

\

~-3:o"-~

SECTION THRU ROCK CHANNEL

#4/ji)12"Both ways each face

Pay line for _;,,,

excav~tion--" ',''·~:i.4.'i5~J:~..::~ in rock Remfarcement ,"· ·.,., ·

I I

I

, I

I

, I

I I

I

Weir crest El.3321.50_,,,__ _

48",35"Casl iron slide 114@ 5'.,:: gate, enclosed pedestal lift, stem, stem guides,

, ,.. ___ #_4_@§'.'[J_, __ -'

ff,. #4@12"nf :

>--+~ '

I

, and anchor balls as required., <\l Head atf: gate, 9'-o" ' Back pressure, o Fl . •

87

':...i'~I.El.3311.30 ·-~.:;t',:-C---· - . #4@5"----~ .., #4@12"• 1

l_.H

i~ 12"Sfeel plate, galv___ ,-Weir crest

. t -,.~--45 • -{'Chamfer

{~s"Bolfs pra1ecft'' for spac1ng. See_/

Dwg. 540-0-153

,.Gate lift

'<o

2 "Chamfer._

._;.

DETAIL OF WEIR

\p===cJ ,. l==l'IP==II E 11--- 12 Pipe handrail

r------' - --- I

; L,-'t Gate ;

not shown---' '-' SECTION THRU CHUTE

f

,.;

,,Chute

• .. ,.#4/ji)/2" T ~

<J El 3311. 00

,;,,;,--,-,-

J

SECTION E- E

J I J'' ..,10{'

,,02. I , • \

'.,;',;·:~.fil. :. l.[ .. 1.1.rrw __ "t .... L. H .. ·•.:; -4.!0pen-i L · , ·· · · · t --_ ~---~<f .2-~:~-L_ "-.. --~~ --· ._--,-;•t°chamfer

1q/(· .. ". ,ngs

<L. _.l.c.,_edqes r. SECTION J-J

SECTION H·H

NOTES Conc,-ele design based on a compressive strength of 3000 p.s.i

111 accordance with the "Joint Committee Specifications for Concrete'.' June 19 40

Base of structure to be placed an undisturbed natural foun­dation o, compacted backfill

All reinforcement shall be piaced so that the centers of bars In the outer layer wi/1 be 2 "from face of concrete for #4 or #5 bars, ond 2j"for#Gorlorqer,unlessofherwise shown

All dimensions to remforcemenf are fa centers of bars. Lop bars 20 diameters at splices,unlessalherwise shown. Chamfer all exposed edges of concreter

REFERENCE DRAWINGS .. .._; ,.; I· --~~.-7':p:rfr-,:·~~,....,.,,-,......,...,--,~-,-,-,~-~.~-.. ,...,......,~-,,.--._-.=-~___J____,,, I

--- shown. Top of backfill \ El.3324.0

, .. 12 Air vent pipe for

weir See Dwo I I 1

,Top of concr,ete . Use corner diagonals

in all square lo round frans1t1ons:

PLAN AND PROFILE __ _

GRATING AND LADDER RUNGS. --- -------54-0-D-131

54-0-D -153 .40-0-4315 _40· D -2B6+

r ; -

8'0"... -::;____ ~ - - I

H.G. El. 3321. 00--.

El 3316 36

.- El.3311. 86 E/33 II

f> ··:- .. !:::?. :_:.:,.. .-.-,,-.- .· 0

SECTION A -A

_,Original ground · surface

\ 0 1ace on undisturbed soil

/"··-E xcavat,on line.

SPECIAL NOTE: All reinforcement to be 11 4-@12" both ways

each face, unless ofhermse shovvn

540 D-I.'i! __

;">~

Weir Crest E/332I50--

,tt : El 332 JOO I f!3 Bands t-JI \ :,.:,8"

1-

"'"' <l)

"'

&"-

1\,

,#4@12"bolh ,- ways e. f.

'Place on undisturbed soi/

'-Excavation/me

HANDRAIL __________ -·---------RUBBER WATERSTOP __

l2"PtPE FLOATWELL_ ____________ 540 · D - 153

~ ~

' ~J:

*• ~_.j

UNITEC STATES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION

CENTRAL VALLEY PROJECT•CAL/F. AMERICAN RIVER DIV. - SLY PARK UNIT

CAMINO CONDUIT

STA. 105+82.50

TURNOUT STRUCTURE AND CHUTE

DRAWN .l_.~_-!_. ___ SUBMITTED _____ R_._$_q_i!_eJ __

"') TRACED_ L.lj ~ RECOMMENDED __ _A_.fi.:_ !!!~V!~

::i: ~ CHECKED-~L:_t:;._ ___ APPROVED - - -i,!i,-~{f:G~;N-G-EN-OfNEiR- --~ DENVER, COLORADO, JUNE .30, }95.3 540-D- 144

/\ A'--+----

8 r>--:::- -- ---= :~ :·~~-

I lj ____ _

I ,,

f>- Sta 263t50\_ (2> /f; Ladder rungs @t2"

;-_,-::~- --:n I --'E Conduit tJ A ~ -- - ::;.I 1 I -1-. .r_f::_ ____ _

7::3;\ '\I I I I -,~ -- I I I

k----6--//~­' Grating--,_ 'o,, ' a· : ,-Et 3t79. 50

,. -t~-,.-

FIGURE 4 REPORT HYO. 382

1------1--1-1.J- - - -- ----==-~ - -- --- -,- -- -I I I = ":_ :: i_j_ _______ _

~y ______ ..lL+

~

' ~ l·~-'l-:. · -)#3__ Bands 1' ,',-Et. 3116.00

L>-8

Le- --4-'-4-"-~ -~8'1- 3 '. 0 ·..,,e',__

: : : 1 ' jffl"r. +?;_ Hit -:-~ - 1

--T _,

#4@12" Bo!h E;lj ~ ~ ways e f ---- ~- . . ,:; ----:r.i

SECTION 8-8 Use corner diagonals in all square

to round transitions.

--- --s'-4-"--->1 .J,e·;.. - 4'-o" .,.,9,;..

: , I I J

#4@12"Both 0._- ---- -- -__ --- :l ways e f ____ : _ c

... ~ . • -- i . ,.,...., .. · . __ :r-

sEc TI oN c-c

Ong1nal qround sur foce - ,

77~"?~~-~~-

5,f /QJ___l..--

'36"1 o Steel pipe

N

L>­c ~

'* I : I i

-- -Far qrating and frame details, see Dwq. 540-0-153

- [ I 0\---------!----- n, rt-- ,--~L----- -1{ Pipe handrail

_J ;,, E E

'* l't ' f----- -4 I -tol 'c:,

'st f- ---I

--------9'.3''. -----

'~ C) C)

'* -, ftl_,Lev.eltop ' , 1 _-r -<-- ,, • -"" ,+-- -2"P1pe

"' }' __ 7

".' {- ----- -

c:, _, ~

' , . '

-,. c:,

'*

1 t ·~ <.,

"' ~

-"' <> "' '-.::

'';,'

t;"

,End of turnout structure

SCALE OF FEET

:<- -- - -- --- --10°11"-- ------ "'::',

->',IO,----.---- 9'-3"--------'"1IO'c-<-_£/ 3179.50 , · Grating--, : r--1 I LI

Weir Crest Jq Et. 3176.50-------· '---'-' r -t-----' --- / -.--.-\_ __ ::_:_':_ ± ·1, ,J;-;,~;~::

- Max ws. a, 90cfs El.3171.29

"' ,co, ~£)~

~ FLOW >

~;,.. 1 ' 0

'-ptace on und1s- "-49" I 0. Steel pipe turbed so,!

f' Ladder runqs@ 12 ~---

Gate lift)

,o~:

,. , _.-Weir crest- Et.JI 76.50 ' ·· - -4'-o"- -.Jd';----,_4:0" ->1<-- - - -- - -,o: 4"- - - -- - - - - >+<--3: a .. __ ,.c. __ - -- - - - - 10:0·- - - - - ---- ""1 •-9" : I I I

• ,, , t I

'~~> 114@!2 bo~h : wars,-- ... ,, 1 1

ir.--T-- -----:-1 I ,.1

,,j- Original ground surface ,

____.!:_-'------- --:;:------

•" I -,J/2 L..

----!8';_ I" : : --·-·--·

b a,

I G

L>-G

,,, _f_ !, A;, vPnf

~· ==== c:,

~' -' ".' Et.3I62. 90,

',o '-, __

fl!4@t2"Bath ways each face

--4e"x 30" Cast iron slide gate, enclosed pedestal lift, stem, stem guides, and anchor ba Its as required.

SECTION D·D

Head atgate,I3'-o'.' Back pressure, o Ft.

I" ----12 Pipe handraii

""' c:,, c:,,

'*' -,.., C:,I

<:;I ~, "''

I' t ~~·,.=IC')

~-1 -,J,;:.C-

:·:i-l"In common

,--Chute s,0029>-

For profile and alinement of chute see Dwq. 540 - 0-131

Original ground surface\

Top of concrete IHt:tlLJI ,,-t{Air vent pipe for weir, El. 3I76.00-----rc~--~~;=-~--~,.,-,-,. see Dwg. 540-0·!53

)> . I .-----. ]/ '/

U., . ,,.,.,,\,

Pay line far ---~, ' 'j{''if-''.'.-Pay line far excavalioo excavation.---- ,!._2:_ 12 _;' ,n rack.

"' .,,,;7,_

~,::~~,::-~,-z---, \0

Weir Crest Et. 3176 50 --

:;:,.

r #4@12"bath ! /

way e. f ___ _; .. --SECTION E·E

~ ~

-l~

-- -~-2" Chamfer

.9 '.'.?

' ' - -!-· H ,., !l+.l:

10: o" Gate as directed.

Turnout structure - - - -

,Grating ~--T

o'.o" c:,

'* 'f'

-\\r- I • ___ '(_

--Chute

Re,nforcement not shown.---·'

6'.-.,

SECTION THRU CHUTE

'oo

SECTION F·F

---#" 4@12" in center of cut-off Bend short bars t5 ",nto chute.

,.n

SECTION THRU ROCK CHANNEL

f J" (9;;_

q--1--1' p -HiJ·-ti"-±l_--H -I:

' ~ 1·- -H_- -lf. . ·'"'· ·,, L -.,.

-Jf;. .. Openings

-Cut-off walls at each end and at third paints of chute.

·-chamfer all edges !;. " SECTION G-G

NOTES Far qeneral notes see Dwg 540 -o -/4 4

REFERENCE DRAWINGS PLAN AND PROFILE ________________ --540-D -1:,7

GRATING AND LADDER RUNG$_ ---54-0-D-l53

HANDRAIL.___________ _ ___ -----40·0·4.J!!S

l211

PIPE FLOATWELL- __ -----54-0-D·l5.J

~

UNITED STATES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION

CENTRAi. VAi.i.CY ,.ROJE'CT-CAI.IF'. AMERICAN RIVER D/V,•SI.Y PARK IJNIT

CAMINO CONDUIT

STA. 263 +50.00

TURNOUT STRUCTURE AND CHUTE

Excavation line SPECIAL NOTE:

PLAN OF CHAIN LINK FENCE Far details see Dwq 540-0-153

~ DRAWN __ -!__A_.~----- SUBMITTED ____ /!___$_(!_!}~,:_ _________ _

: TRACED _ L__!f_~ _____ RECOMMENDEO __ A_._8_._/f_~_~t_e_s__

SECTION A-A A!lre,nforcementtobe #4@12"both ways

each face, unless otherwise shown !, CHECKED V..Ct::.. ___ -APPRovEo -cHl.:.,H0f:,~"!,£.- -NG,-NccR

~~ OENVER,COLORADO,.JUNE:JO,lg!J3 540-0- 151

494

8<7 r>H -- ------ ---- -s1~- ---- - --- - ---- - --r---- ---24"-- -----t-- --- --- ---39" -- --- --- --~

r>C : r>D !

AL I I S> --

8<J L>H

El. 3320.59

SECTION 8-8

--is"---;~

k---12"--->1 : I

--f =' '? ·'·

-T I I I

=· 1

~ : o, N1 I I

: =' I N

ll«,m,cscsd/ }- ~ o<> I --r •' £; ' ' I I

I I Ll -w---r--1 ' SECTION C-C

SECTION H-H

_199~ _a_pp:~!- - --7- -- ---(Horseshoe) ,

I

I

'-Piezometer station

--- I

' =.' -------. .;

L>c

3"1<,.: I ·'

i L>D I I ., "' "' N I I I

' Piezometer stotion---"

_j

J ~

•' N

T

PLAN

i_ ========I

SECTION D-D

---------- .,J

I<------------ 39"--I

I ___ .,.J

I

J

El. 3311.33--,,

SECTION A-A

(!)

<7

A ----_;iA -~- ----r

----->a ---r .

FIGURE 5 REPORT HYO. 382

'~""- -----<',~ -- ----- ----- ----- -- 92'c_ _______ --- -- --- I Adjustable 16 ga. blade·:,

( Final height) ---[ ('E"I'. 3 ,321.37 ( Initial height) .N ,- • El 3320.87 __ rlr t_ . :

Piezometer station--·

-... "'

._J/J I :

Y.,!. ... : :

~J '<.

~:- -~ ~4. ~/ 7 I ' I I

I I

1<---- --12o"min -- - ---+c-- ---- -- -30"- - - - - -- -';'-- - -- - 100" approx.----- - ->1

: II • ___ j: __ ---------r' -------:1 j-----''~-----1 ,--12 p,pe O

:

Transition--'

INLET PIPING

--12o"approx.-.

/ 12" pipe-/

- - __ ,,. ~--

', Piezometer station-;

'--,e" horseshoe

--~

,--Flanged end

--r i ---t:------>'--{---- -- ----------7 ___ ,,,, ___ ---·--· --f:

Slide gate---,,

2"

---,.: ' I

)/11

I

EL varies--,

--:l----- " EL 3313.91·-----ltt<~~,~1~,~-45•bevel . .,,,,____ . : "'"'"bl""" ' z~ : -,

; : EL 33/U0 Y ½ ~ y

4 -, 1

•' "'

:· --:--;,r -~ 41f2k- (\J

l<-----------32''--------->l ' I I I I

-,,--11 " I I I

., "' "' N

t·i Gate

r'---12 ---~ l __ "f

~ ~ J, ij i r-,.. /, _.I--- I

I ~---------j__ ~ 0 ___ i _j'__-i'

SECTION E - E

~ I

"' ' . .

.k- 10'1;'-+-,ov;-"1 I

---. ' ' I

-=i "* -I : L======l=====~-;-1

, I I

r<- - - - - - - - - - 32"- - -- ----- -~

SECTION F-F

=q, .-EL 3311.30

!L. ,-- ::::=::=:J -- - - --J ~

SECTION G- G

CAMINO CONDUIT TURNOUTS

MODEL OF STATION 105+85 STRUCTURE

I :4 SCALE

•••

r Flow !L J ___ ,._A ~

I i L

Bulkhead-----

Gate-, ' ' '

SECTION a-a

rl . ' . ----12----T- 2 =• ID r: l-' I •

•' ID

:

FIGURE 6 REPORT. H YD. 382

Existing chqnnel walls-,

-

, False walls-1

! I I I I I I I I .,

I!? ~ -----' I I I I I I I I I I I

~ I

I I I I I I I I I I I I I I

•' :i--1---1 I I I I I I I I I I I I I

I • ~- ----------27.75 ------------ ~

-- 1 I Spaces 0.938°-,

I I I I I I I I I

11 I I 11 11 Ill 111 11 I

II ~ ... r ... ,.._,...11<-5.1s".i11<1--t ~ ~-1

2.44'!, l-2.a15~ ii : I •-2.a1s'!J •-2.44"

(Final) o.so!!ol k-;;.&3'!..oJ k-o.so' (Final) (Final)

SECTION C-C

I I I • 11 · I I< ---------------------------57----------------------------- ......

SECTION A-A

CAMINO CONDUIT TURNOUTS MODEL OF TURNOUT CHANNEL FOR STATION 263+50 STRUCTURE

1:4 SOALE

A. Compartment above turnout gate -preliminary design

C. Cut-off wall extending 17 inches upstream from gate wall

Figure 7 Report Hyd. 382

B. Flow moves to right along gate wall and passes through gate with sideward component

.O. Flow is directed more squarely toward gate by 17 inch cut-off wall

l'fote: In final design model wall extension is 18 inches

CAMINO CONDUIT TURNOUTS Station 105+85

Cut-off Wall to Direct Flow Into Turnout Gate 1:4 Scale

•••

'

-

'

• '

~--<J Flow > '9A ---: ..... ..,.,.: r<l ' S I

c-a1W

PLAN

ELEVATION

A. THREE TRIANGULAR BAFFLE BLOCKS WITH TWO CURTAIN WALLS.

fspoc~, \,.

Flow >

<J .,.., 'I

<J

FIGURE 8 REPORT HYO. 382

'~

Flow --->

PLAN

ELEVATION

. B. THREE TfUANGULAR BAFFLE BLOCKS AND BAFFLE WITH DRAFT TUBE ·LIKE FLOW PASSAGE.

' 2.i'p(g_(ics .,_..,

Flow > -- ~pies . . -- f-- --

c::' .. 0.9~~ .:?.,JI . : i sq.--, l" 4 sq.-...

PLAN PLAN

-12·---12"--

Baffle port area-Sa sq. in.

't II .I -12-- ---- ------46.5 ---------7 J ---!

ELEVATION ELEVATION

C. SLATS AND BAFFLE WITH DRAFT TUBE-LIKE FLOW PASSAGE AND CURTAIN WALL.

D. SLATS WITH TWO CURTAIN WALLS.

' ,. Ir•..., i

I I ,.

Flow I r· ... I

---> I

- -6·! ....... -- - •N

"' I J" I 2a·,.., I

I '~ l" I I

I 4 - • ...., ~

PLAN

Baffle port oreo-625q. in.

t -'J II --~·-- ~r----37.5---------1 .I ...

ELEVATION

E. FINAL DESIGN OF SLAT BAFFLE AND TWO CURTAIN W~LLS,

CAMINO CONDUIT TURNOUTS BAFFLES IN TURNOUT CHANNEL- STATION 105 +85

1:4 SCALE MODEL

'

A. Gate fully open. Upstream w. s. elev. 3315. 68

B. Gate partially closed. Up­stream w. s. elev. 3321. 37

C. Gate closed. Flow over skimming weir. Upstream w.s. elev. 3322.40

CAMINO CONDUIT TURNOUTS Station 105+85

35 cfs Flow in Weir Basin With Recommend Baffles & Pool Length

Figure 9 Report Hyd. 382

A. Gate fully open. Upstream w. s. elev. 3315.68

B. Gate partially closed. Upstream w. s. elev. approx. 3321.37

C. Gate closed. Flow over skimming weir. Upstream w. s. elev. 3322. 40

CAMINO CONDUIT TURNOUT Station 105+85

35 cfs Flow in Region of Recommended Baffles.

Figure 10 Report Hyd. 382

A. Hydraulic jump in turnout structure with 35 cfs and turnout gate full open. w. s. elev. 3315. 68. (No flow to main conduit downstream)

B. Maximum flow of 125 cfs. 90 cfs con­tinuing in downstream main conduit, and 35 cfs passing over turnout skim­ming weir. w. s. elev. 3322. 40

CAMINO CONDUIT TURNOUTS Station 105+85

Flows of 35 and 125 cfs in Turnout Structure

Figure 11 Report Hyd. 382

A. Gate fully open.

B. Gate partially closed

C. Gate closed, Flow over skim­ming weir

CAMINO CONDUIT TURNOUTS Station 105+85

35 cfs Flow in Weir Basin with Clogged Baffles

Figure 12 Report Hyd. 382

A. Flow across the right wall of the passage to open section of main conduit. Preliminary design. Q = 90 cfs

B. Improved now with raised wall Recommended Design Q = 90 cfs

CAMINO CONDUIT TURNOUTS Station 105+85

;Flow in Open Section of Main Conduit

Figure 13 Report Hy.a,, 382

A. Gate fully open

B. Gat.e partially closed

CAMINO CONDUIT TURNOUTS Station 263+50

· 20 cfs Flow tn Weir Basin With Recommended Baffles:

Figure 14 Report Hyd. 382