LADM NO. 1130-2-29 Carbon Canyon Dam FCB O&M Manual 10-1962.pdf

SANTA ANA RIVER BASIN (AND ORANGE COUNTY 1,CALIFORNIA

FLOOD C O N T R O L

OPERATION AND MAINTENANCE MANUAL

CARBON CANYON CIAMI AND CHANNEL

U. So ARMY EMGlNEEp DBSTRICT LLQS ANGELES

CORPS) [OF ENGINEERS

0 Ll=o h) 9962

I4D!4 N0. 1130-2-4 U. S. AN$tr ts{GINEER DISTRTGT

LOS AIIGEI8S, NOI/EMEBR 1962

FOmwonD

N

1. Thie Ealaual Preecribes standad procodureo for tbe operatLoa and nalntenenoo of tni federaS.l.y constnrcted Carbon Canyon t" *it

Ch""""i; S*A.A3" nf"""-n uf" i""O Orange County), Call:forala. A]'1 prevlously fosuea oper.lfo"-"nA rnatatenance uan'als for thlo proJect ire superseded bY thLe Deloualo

2.TheDnsSect lonoftbeDestgs-Bnanch,hgl ' legd'ngD[d.e! ,on, fo responslbLe foiirr"-p""p"r"t1on oftble tnasilal and for keepiag the

;r"l-;;t*d"t"; S"ea"si"d rerC,sloae ehould bo fonnrded through otrannels to that seetloa.

FoR rliE Drsr*rer *-Tu--/.--*--

/t'^ !fiLtlAl,l g. cntrbfr,'I$i Lt. Col., CorPs of hgJ'neers Deputy Dtstriat hglneer

LJ\,V

CIONTEI{TS

SECTICN 1. - INTRODUCTION

Fase

A u t h o r l z a t i o n . . G . . o . . . c . . . o . r . . . . I r . l . o o . o . o r . . . o o , e o . o e o ! L - l P r o j e c t l o c a t l o n . r . . o . . . . . . . . r o . . o o . r e o o . . . . o . o . o e e o o o . . o o 1 - 1 " P r i n c i p a l g t r u c t u r e s r o r o . . . . a . e . . . . r . o o . . . . o e . r r . . c . . c . c o e ] , - L l r o t e e t i o n p n o v l d e d . r c . . 6 o . o o . o o . . . 6 . o c r o o c o o o o o o c . | 6 o s c o o 1 - 1 Des lgn mgeorand lmg o o e eo e e o e c oeee.e c e o ?o e o o o o eo o ee o oo e c o co e 1 -1 Congtructlon histot] o o o e e o o. c s o o c o o o o o o o o o o o o o o o o... . o.. c

L-2

P g r t l n g n t d a t a . . . o . s . e . o . . . o o c o o . o o . c o o . . . o o . ! . . . . . o . r . c . . 1 - 2

SEETION 2 - GENERAL PROffiDUrcS

A p p r o v e d r e g u L a t l ' o n 8 r e . . . . . . . c . . . . . o . e . . . . . . . . . . . . o . . o . . . o 2 - L P n r p o s e o f l a n u a l . . c . . . . . . . . o . " o . . r o . . . . . . o . . . o o . . c o o o o . . . 2 - 1 D g f f u d t l o n 9 r o . . o r . . . . . c . . . . . . . . . . . . . . e . . . . o o o r . . c e c . e o e o e s 2 - L Rgfgrgncg drarrJ'ngs and, Eanualg o r o . o.. .. . o,r o c. c .. G o o o o o o e G o 2-z I \ r nc tLone o f t be Cms tn rc t l oa D l v i s l on . . . . . o , . f . . r r o ro rc . . 2 -2 l \ nc t l ons o f t he Eag inee r tng D lv i sLon r . . o .o r . r . . r r . . . o . r ! . Z -Z f t rnct l ,ons of the Real Estate DLr ls i€)D , .o . . . . . . . r . ror ! roo. . 2-3 tr\metlons of, tbe II. s. Geological Surrey .. !rr. .or.. ,oo.oo. 2-3 Inspeations aad naLntgna.cg .. , o c o . I o, c o c. r r c o o, ? r c c r o c o o o o ?-3 D r t l g g o f t h g d n r n t g n d g l o e r c c c e c r o . . . r c e . r r c . e e f . o . . r r . e r . Z - l t Routlag test operatlons c o o o c o o o o o o o . . . . . . . . r. . . o o . r r . r . r . o 2-5 ffiOTICI{ 3 - REffiRVOIN A$D EI{Bfi{&M{T

R g S E f g O l f . . r . . o o . r . . r . r . o r . r e e . . e o o e e e e e o I e o e o e r e e c c g e e a r e 3 - L tnban logn t

" o .

o ! o c o c . c o o r o 6 o . o? e o o o o o o o o o o o e o 6 o o @ e o e o o o o o o c 3 - I

A g e g s s r o & d a l o . . e c . . e o o r a o o o r o r o o o r . . . r . o . . o o . . . . . . o . o o o o . 3 - 1 F e n c i a g . a . r o . o r o . . o o . o . . . o . a I r . . . . . . . ! o a t . r r c . o o ! o r o . . r . . . 3 - L P l e z o m g t g l B r r t r c . r . . . . . o I o o . . c o . . o r l . o . o r r . . l l . r o o o o t . i o . o 3 - 2 Inspeotlmg asd nalntgnano@ . . . I r o r . r r | . . . . | .. r. . o o. r. r.. o . 3-2

SE0TION 4 - 0IITIET lrlOn$t

G g n e r a L f e a t u r l E s . . . . r . | ! . . r r . . o . . . . . r . . . o . . . o . ! . . o . . c , ! . o . 4 - L Approach cbanngL and t ras t r rack . . . r . o . r o . . ! r . o . . . . r r . o . . o r . & -L Inta"kg tougr a. . . l r c . r . t | . . . . . o . . r . o I o o . o o, I o . o . o o | . . | . o . e

/+-L

T r a n s l t l m . . . . . . o . o o o 3 o . . . r . . i . o c , ! o o o o . o r . o e o . . o o o e o o o o . o l + - L

O u t l g t o o n d u l t . . o . . . c . o a . o c o o e e e o c o c 3 e e o o c c e o c o r e . o o o e o r o o l , * . f .

C o n t r O l l l o o E l c a r c o e o o e e . . a o o o o a e o o o o 6 r e 6 o o D 6 o o c c o r . . o r o . o . l l f z

F l o a t W g L l . e o o . r D o . c . . . . . . r o o r . c . o 1 . r . . . o I o . . I r . o . ! o l o . . , . l F z

A c c e s s b r i d g e . . . r r . . o o r . c r . . r . r r r r . . . r . . r . r c I r . . o o r e . . r . r . l + - z Standby ggDorator housg . . r . I o . . . | . r . . . . . . . | . o. . . r . o o . | | . . . lPz Instrrct long gnd nalntgnEncg r r o . . r r o r . . . o. , o. o . 3. . . o . D, r o. o l f3 t

CO{TENTS - Contlnusd sEcTroN 5 - sP[ltltar

G g n E r r a l f e a t u r g g . . . . r . . . . . I e e . . c e c o e e e . e o . o o o 0 . . e . r f . c . . . . o s p l l l u a y a p p n o a e h o h a n r r g l . r . . r c . c . r o o . . r . . . . . r . . , . r o . . r . . r .

C o n t r o l s e o t l o n . o . . 3 . o . . . . . . . . . 1 . . . r . , . . . . . . r . . . . . o o r r . . r . .

Drop stnrotrrrg and buckgt .. . r. r. . . .. r . r . . . r. r r. r . . . . o Inspec t long aad no ln tgaan@ r . . . . . . . . . . . . . . . . . . . . . r o o . r o . . . o

Daee ffiETIMI 6 - O,AflDON ENTOI{ EffAX$TEL

O h a a n g l ' . o . . . a o . . . a . . a a a a . . a . o . . r a a a a a a a . a a . r e o c g e e c c e a c g o a o F e n c g g a a a r a a r a a a a a o a a a a . a o a a o a o a o a a a a a a I r a a a r a a . ! c ! c c c . a a o a D r a l n e g e g t n r c t u F c o c c . e e c . c e . c . . a . . . . 3 . . . . . . . . r . . . . r o o o . . .

I n e p e c t l o n q . n f l r p a l n t g n a n o a . , . . . r . . , . . . . . . . . r o . . . . . r . r sEcTxoN 7 GAIES, HOISTS Al,lD I'{ACHINERX

G a t g g a a a a a a a a a o o a a a a a a a a a a a a . o . . l o a a t . a a . a r l a o o . r 1 . . o a a a a l a H o l ' g t g a . . . . a . . a o . o . . o . a a . . . . . . . . . a . . . . . . a a . . r a . t r . o . . . r a r . a o p g l a t i n g l a c b l n g r ? . . . . . . . . r . r . . . o o . . r . . g o o o o o e c c c e a e o e e e . c G a t e o t r n r a t l o n s . . . o . . . . . . . . . . . . . . . . r . , c c . . . o . o c ! o c , . . . . o . . o Inepeetlone, teote and ualntgnaaeg . .. r r o . r . . .... r ... . r

SECTIOS 8 - UIDNOICIGTE INSTAIJATIOI{S

G g a g r a . l . . . . . . . a a a . a a . . a . a a r r a a r . a a a . . l a r . . . a r . . . a . . . . . . . 1 a a 8 - L Rgggmolr uater stege looorder .... .. . .... .. . . r . o o . . . c . r . . r. B-1 f g l g n a r k a a . . a . . . a . . a . o . o . e e . . e e e c o . . c c . . . . . c . . o . r r . r . o o . r . a 8 - 1 Rgsgrvo l ' r s ta f f ga89g . . . . . . . . . . . . . . . r . | 6 o r o r . . t . . r . . . . . . . . . 8 -1 Gate poolt tgn lJ ldtcatofo and rrsooldelB rr .r . . . r . . . . . . . . . . . . . 8-L Gate psLt lon staff gageg d r o r o r . . . . . r r . . . . . . . . o . . . . . . . . . . . . 8-f S t E n d g l d r e l n g a g e . . r . . . . . . r . . . . . . r . . . . r . . . . . . . . . . . . . . . . . . . B - L R e o o s t l l n g r l 8 l n g a g e . . . . . . . . . . . . . . . . . . . . . . . . r . o . e e e o e e e c e e e c 8 - 1 Or t f , lov gag lDg g ta t lon . . . . . . . . . . . r . . . . . . . . . . . r . c c a a . . . . . . . o Uz Sgd l -ngnta t loa nonungntEt e e e e e e e c e e e e . e . . . . . r . . . . . . .3 . . . . o . . . *2 rnspeotlon, seflrlot.ng, nalnterianag and ropor.ttng . r.... r... . uz

FECTICN 9 - COMMIINIC,ATTq{ FACIIJTIES

R a d l , o s t a t l o n . . . . . . o . . . . . . . . . . . . . . . . . . . . . . . . . . r . o . . . . . . . . . . H , T e J . e p h o n e . e . . o . . o . . . . . . . . . . . . . . . . r r . . . . . o . . . . r . r . . . . . . . . . 1 . 9 - 1 Malntgngnoe of ladto lnsta l la tLo l l . . . . . . . . o r . . o . . . . . . . . . . . . o %L Te lephone na ln tgnanog r o r . . . . . e e . . e . . . o c e o e e e e e e c . o o . . i

9 -1 b\ 5-1 5-L 5-L 5-L

6-l 6-f 6-1 6-l

7-L 7-L 7-l 7-2 ?-2

1t f

CONIE$TS - 0onrtlnued

SEOTIOD{ 10 - WATEB SI'PPIY A}ID SEWAGE

Leec

Watgr gtlpply sSroten . .. . . . . t . . . . . .. . . . . o o . . .. ! . . . . . . . . .. . . o 10-1 S e u e g e s y o t c m . . . o . . . . . . r . . . . . . . . . . . . . . o . . . . . o e r . . . o o o . " r o o I 0 - 1 Iaslnotlons anld rna{ntgngnog o r. . . c e I o r .. e c. c i.. o. c o. . .. e . .. 1O-1"

SCtION LI - I|Tre-FIGHTINC EQU]P}IENT, FIM PnETNTIoI{, ND ACCIDENT pRETENTICIt

0 o n t r o l l O o D o . . o . . . . . . . . . . . . . . . . . . r r t r . . . . . . . . . . c . . c e o " o " . I L - l Inspeotloas, teete and uatntgneaog ... . . . . o... ! . . . c.. . c,, o n t l- f .

A c c l d g r n t , P f e V g n t l , o l l c . r . o . . r o . . . . . . . . . . . . o . . r . . . . . n . o . . . , . " l 1 * 2

SCTION 12 - FESNVOIR MGT'IATIW AND

FIOOD EMErcENCI MQINM}{ENTS

B a s g r o t , r r e g u l , a t l o n . . . . . . . . . . . . . . . . . . e e . . . . . . c o r c o o e r r c o e f l lood enstggncy prgparat tong rco c c c .66 o c a 66cc c o oce o o 6 so. .6.

I n o p e c t L o n g o r o . . . . . . . a . . . . . . o . . . . . . . . . . . . . . . . . . . . . . . o o e . . .

F l o o d u a l | D l n g g . . . . . . . . . . . . r . . . . . . . . . I r . . . . r . . r . . . . . . . . . o . o lbbi l l lzat loa r o . . . . . . . . . . . . . . . . . . . . o . . . . . . . . . . . . . l Notl.f lcatton of, rgggrvolr rgleaEgg ... . . . . . . . . . . o. . . . . o

TTniIBITS hoJeet locatLon

General phn

Saopeetlon cheek ltete

Test reporte

Instruatlons f,or operatlon

Drawlnge (rmattacbed)

Operating lnstnrotloEs and Kng-x"rght Conpany of, gates and apprtenanoes

Perte Ld.st eorrplled by

1"2-t 12-1 12-1 L2-2 1:.2 l2-2

A

B c

D

E

F

G

*il

OTENATTON A}'TD M.IINM{ANCE IIAIIUAL

FOR

CANBO{ CANYOI{ DAI{ AI{D CTIANNET

sANTA aNA Rrwn BAsrs (^snp oneuon coullry), cAt,rroaNr]t ffiOTION 1 - INTfiODT'CTION l.OI. Aulhori raEon. The Carbon Canyon &n and Chennel conprise onE of the unlte of the flood control proJeet for the Santa Ana RXver B"glo and oryqge county, carlfomLa, author{.zed by aet of congress, hrbllc Iau 738, Seventy-fourtb Congress, approved 22 June 1936, as anended by act of_logereos, hrbllc Isn 761, seventy-flfth congress, approved 28 June 1938.

L.02. ProJeet loeatisn. rhe carbon canyoa Dan is located ia Onange countyr caLlfornla, about I nlles northeast of the cities of Iu.llerbon and anahelm anrr about 12 uiles north of the city of santa Aha" (See ararfug, fll.e no" LZ6/2, exlribtt F)

1.03. Fi-ncLoal structuroe. Ilre prlaetpal. stmetuf,€s sf the proJeot tnc.lrrde (a) an Eartbfirl enbaaknentt (b) tbe ouu.et uorks, iacludlrry a! approaob otrannel, an iatake structure with sLlde gatoss a tlansitlon eectloD, an oratlet condult, a touer and eontrsJ. roono an.aceess bridge t9_the tower, and a house for the etandby geaeraior;

(o) a detachcd splllr*ay, conslstlrg of an approaoh sharrne]" a eontrol eeetion ard a drop stnrotrrre rrlth bruekot; and (a) a reotanlrrtar relnforoed aonorete chalnc}6

- 1:04_. Fotecttq orovlde4. The proJect provides proteetlon agalnat floode to a hLgh.ly developed area on tbe eoasts.l plaia in Onange Cornty. Xhts aroa lnol:udes (a) yafuable reeLdentlaL, comercianu aod Ladust{"l properties 1a and neer ths cltLes of anahein, s'uenton, atd Garden Grove, and the comrnity of los AJ.anitoa' (b) nanv citnrs-groyos, and (a) part of tbe Ios {'larrrtos Nava1 Alr gase,

1.05. &pfqPgnorqn(Lugg" Eets,iled desor{.ptlons and conprtatlons are glven la th€ fol.lotrtug retrnrte lssued by the coqps of hgineers, Uo S. Arry Engineer Dlstrdct, toe Angeles:

Br Design l{enorrandrm I{o. I - Hydrology for carboa canyon Ihn o"rd Chanrol, deted Apr:tJ. L957 "

b. DeElp l'lenorandtn Ho. 2 - General Deslgn for Csrbon Canyoa &n and Channelr datod August L957.

oo Deslgn l{Emoraadnm ![o. 3 - n€d Estate for Carbon Canyon Dan and 0tunnelr dated I'ray L957"

d. &rpplenentel, neport to Deslga l,fEnorzndun No. 3, ReaI Estate for Carbon Canyoa bn and Cbannel, dated Septenber L957'

€r Deolgn lfuozendun No, 4 - fubanhent Foundetlon for Oarbon Ca4ron Dan, dated &rguet 1958.

1.06. 0onet4rctton lri.stotr. Congtnrctloa of the proJeot uas acoonpHshed tuder the follonlng contraat, cold.es of whlch are on flLe in the offlcE of tbE Dlstd.ct Ergfueer, U. S. Aay eglaeer D[etr{.et, Ios Angeles.

0ontractorl Oberg Constnrot'ioa Corpratlon, Sorbhrl.dge, Callforda.

Oontraet nrmberr DA Ol+-35yCM[tG-59-],&4.

Work et€rteda Apr{.l L959" lf6rk eonpleted: 9 ltely 1951..

Acoepted by the Untted Stateer 9 \fpry 1961..

L.AI. Fertl.nent datac

&g'e qrge Top eJ.evatLon Streanbod elevatlon Crest lengtb Creet sldth l&s. helght above streambed

-@!-@eg type Nnnber and tlpe of gatee Slze of gatos Gate slLL elEvatlon Con&dt J.engtb Oon&dt openlag slze Condult aapaclty, free fLow uater$rrface at eptttrny eregt

SpilLmve Sype feet, feet, f,eet feet feet f,eet feet, D.8.1.

feet feet

€ . f . 9 .

earbhfilL t&o

2r6LO eoncrete gated 2 hdraul,lc gLl.de

5 x 6 . 5 tp3

4.'15 t 7

Lrno

D.6.1 .

l [ .€. l r detached broadcreet

$gllJgegs Contlnued Crrst elevatlon Crest kngth Surcharge above eregt

(sp1L1way design flood) Capectty at surohargc clevatlon

RBsergg:L!

Storage allocatlon below epiJJ.way

\J Flood control Debrd.s storage

Area,en$ _oapaalt& t"abulatiogl

Spllluay cneet l"hx. uater suface Top of da.n

Prqlneee-gres

@r Total volurc Peak lnfLow Peak outflow

$bdrun orobable floo4l Total volume Peak lnflow Peak outflow f ee t ,8 . s .1 .

feet feet

G o f

3 " crestr eere-feet aom-feet nlles ecre-feet C . f . 9 .

C . f . 9 .

acre-feet C.f . E i .

O . f . 8 .

area aorag 22L 3t6 scnrare

5r87O lr5oo grosc aapaeity acre-feet

7 t17O L2r33O 14rr3O

Lg.3 gro3o 9r3OO Lro@

L0r600 55'ooo 36rBoo ti75 r25

18.7

36r8oo r.-3

SECTION 2 - GENENAL PNO@DI'REF!

z.OL" Anproved resulationss

6o Emergeney fuplolpent of Amy REsources EM 500-1-1t dated I Auguot 1961"

b. F.'nergency Flood Control Activitlee (under PL 99/eL) Annex A to SM JOO-1-J., dated November 1961.

cr ProJeet Operatlon }dalntenance GuLde EM 1.130-2-303, dated 20 June 1.960" dn l1reflgbterrs Trulnlng lrarrual, det€d Oetober 1950.

so GeneraL Safety RequS.renents B{ 385-1-1r dated 13 }&'rch L958.

f. lector Vehlcle Inepection - Technlcal $hnusl 38-660-Le Operttorte l,falntenanog Instnretlons & Procedures for Arftn{nistrative Mstor Volrlelcs, dated 16 Apral L95?.

go ELre heventlon Code N.B.F.U.

. bn Natlonal ElectrJ.cal Cods N,F.P.A.

1. Reserrrolr Regulation Mranral for Carbon Canyon Dara and Oharonel"

J. ehenteal, BloJ.ogleal, Radiological ltlonJ.torl.ng Responsl-bllltleo, B{ 500-1-1, 3.nnex D, Part II, Clytl Defeaee (to Ue ptrbltshect), 2.O2. Pnroose of nanus.l. The puqrose of ttris nanrral Le to cupply tbe ,req tender and the dietd.ct operatlng pereonnel trith instnrctione for prc1nr lnspectloa, operation, ar1fl rneulntgnsnce of the Carbon Canyon Dan and Che.mel.r Santa Ana Rlver Basln. lteee lnstructlons ulll lngur€ the contLnuqus Ealntenance of etruotures cnd equlpnent and their operation ln $rah a Darner and at sueh tlres as nlLI obtalr optlnun bEneflts"

2.O3. Deglqlgope. Speclal.lzed terns used ln this uanua-l are deflned as fo]-louge (a) Thglneerd.ng Dlrrj.sion, Consttuotion Dlrrl,slon and nea-l Estate Dlvielon refer to organlzatlone ylthla tihe U. S" ArEy hglneer.Dletrlct, Ios lngeJ,eo. (U) F].ood season rlefors to thE pqdod f,ron 15 0ctober to 15 Apr1.I wben nost past fLoods have occurred. (c) ALI elevatlons rafer to aean gEa Level datnm, as ln abbrevlatlon D.6.1.

4-L

2.o4" Reference-drawlnes and panuals. Dnawing fr.re nurubers in thls nanual refer to nas constructedtr drawings whlch are ineluded as et&iblt F and separately bound. Drawlngs, nanuals, and instnrctions of narrufacturerst equlpnent are llsted ln exlriblt G and are on flle ln the district offlce and at the proJect.

.2,O5. Ftrnctlgns of the Constnrctlon UlvisLon. Operatlon and naintenance and alJ. lnspections are undei the superrrlslon of the Oonstnrctlon Divlslon, rdth the exceptlon of those for hydrologlc lnstallatlons (see section 8). flre general dutles lnclude the followingc

8r l(ey prersonnel shall be tratned ln ordet b}ut regular inspeetionr operatlon, and naLntenance work will be perforned eiftclent1y and to Lnzure that r:ne>rpected probleas related to flbod control Eay tr|e handled in an e:cpedltlous and orrlerJ.y narurer. llrey shal1 beeome fan{llar with the provS.sions of thls nanual, the conetnrctlon spociflcau.ons a.nd the nas constmctedrt drawi.ngs.

b. There shal-l bE no encroachent or treepass uhlch will adversely affect the efficlent olreratlon or mr*#ntenance of the proJect.

the Cldef, Constnrotlon Dlrrlsion, shalL therefore caus6 notlces and gigns to be posted at consplcuous placeo along the proJect right-of-gay directiag publl.c attention to thls reqrrinement ond he inaft artange for the prosecution of offenders and report actlons taken to tbe DLstrict ftrgtneer. all trespasses or vloLations of ortgrants dlscovered by Constnrction D.lrrLsion personnel Ehall Ue reporied to the Rea-l Estato Divislon" or The ConstnrctLon Dlvlsion rrerrieus plans and furnLshee oonments to the ffeaI Estate DlvisloD on requests fron pubtlc or private lnterests for collateral use of land end rnter areas and perfoms inspections during constnrction to assure conplianee wittlapproved plans"

d. The Chief, Constnrcfi.on Dlrrislon, shall establish a fp:. of

"1+ reporto and records concemlng tbe 'nnintenance and operatlon of the project works.

z,Vo. tr\pgtlonF_p#be Ereineeripe D[rj.sl-on.

B. The srgineerrng Dlvlslon perforns engl.neertng reviews of all plans and furnlshes englneerLng comeats to the real estate divlslon on requests fron publLc or pr{.vate interests for collatera-l use of proJect Lands.

b. It conducte peri.o&tcaL conditl.on sunreys of the proJect.

these sureeJrs serve a two-fold prrrpose to (1) ascertain tbe eondltton of -the var{.oug parbs of the proJect, ana (a) to see j.f arL the repalrs and lnpnovementg bave been carrd_ed, out tbat were prerriously reconmaended.

J ra e-2

C

o. It shal1 train key personnel in the operaH.on of sel:Irlce gates, hoistsn standby porirer nnlts and conrunicatlon faellltlee gld ln tlre operation end malntenance of hydrologtc instalLations and fJoo$ fighting gqulpnent" They shall beeome falnlllar nlth thls ranualo the LADM 500-1-1r-Eh€rgengy Flood Control Activitleo, the Bssenroir Regulations l"ianual, and the naE constnrctEdn drardngi.

d. It prepares and e:<ecutes alJ flood fightlag plans and thro-ugh the Hydrology & Regervolr Regulatlon Sectionr-aireetl the darn tender or hls assigned altemate Ln the operation of- the ge.tes. rt keeps necords of resenroLr stages, inflorto the resenroir, releages through the outlet stnretuJ€s and splllway svorflowo

' 6r The Eaglneering &lrrlslon Ls responslble for tbe lnspec-tJ.on, senriclng, and rnaintenanrce of o11 hydrofoltc tnstallatlsns. lhelr routine lnspectlons rrtlL. bE done by the dnn tsndor.

f. The superrrlsLon and rnalntenanee of md1o installations l"s aleo a funetion of the englneerlng dlvlsJ.on, 2.97" Eunctlons of tbe neal Estate. qlvlsLon"

4c The Real Estate Dlrrlslon proceeses all permlts, licenses, easements, or leases ttrrough appropnlatc clrenneLs and adnlnlst€rs conpleted Lnstnments.

b' It lnsures aonplJ.ance through periodie inspeetione c3d acts upon aLl vioLations of outgrants.

Go ft firrnishes to the Constmctlon Dirrislon, coples of al-l pemlts, Ltcensos, eascmentg or leases.

2.08_. F.\:nctLons gf the u.. s. Geoloetca1-.tFllrvev. By agreement bglyeen the Corps of EngLaeers and. the U"-S; Geffietcal Strwey, the latter urll.l sernice the outflow gaglng statlon, ue.ke dlscrrarge aeasufinents and conpll.e and publlsh the outflow reeords in tbe u. s. Geologica_l hlater Srpply paperoo

2.O9. Iugpectigns and. pgsatenapeo.

a. 9v_ thg QgnptrFgtloF and Ereineegj.ne Dtyfurloner perdodic J.nspections shall be nadE by the ctaG{ffi, or his gtlthot{.aed representatl.ne ln cooperation nlth the chlef, Fkrgineerlng frlaslont or hls author{.zed repreeentative, as neqr:ired, J.n-onfler to deteralnir nalaf,,sn?nce tneasures Decegsarlr t6 hnrre serviceabd.lity of the works tn tlne of flood. Such lnspettionE ehall be nade iunedlate-ly forlolrlng eaoh rnaJor highnater pertodr and at LaternaLs aot to exceed 6 nonths and at such tlees ls uay-be necessary. ImedlatE steps shaLl be takea to corrnect, dsngerous condltlons disclosed by srrch

2-3 inspections and regnlar maintenanee repalr measures sharr be acconpHshed durd-ng the approprdate aeason as scheduled by the cblef of tbe dlrrlslon. ArL repatrs sharl be nade tn accordance nlth standard eng!-neerlng practice, to line and grade and ln accordanee wlth detalls shom on nas constnrctedrr drawinge, exrnlblt F.

b. By, the da.m tender: periodic routlne i_nspections of stnrctures and egulpnent and of the proJect area sha1l be nade by the dam tender or lds asslstents to deternine nal.ntenance neaEures that aro required. These lnspectlons durd.ng the non-flood Eeason shall be nade at lntenrals of not nore than 90 days; durtng the flood seae,on, beglnrdng 15 Octoberr. at intenrals of not nore than J0 days; also innediately follouing each flood. l,iore frequent lnspectloni shall be nade lf requlred for the safety and efficlent rnalntenance of some featureg of the proJect. Drnlng each inspoctlon, items requird.ng naintenance shsll be checked and described on th6 lnspectlon ctreck lists lncluded as e)ddblt c. After each lnspectionn 6ne set of the lnspectlon }[sts_ sha1l be pronptly zubmltted to the Ch[Ef, lvhlntenance sectlon, who will route lt to the Deslgn Branch, Englneerd.ng Di.vislon;

one set sherl be zubnttted to the chlef, operations Braneh; and one set shall be retalned by the dam tender. l&,lntenance sbal.i be perf,omed by the dsrr tender lf fEaslbLe. If naintenance requlres hir{ng iAaf-tloaal labor or equlpent, the rlarn tender shall strtmlt to the chief, 0peratlons Branch, a Llst of propooed nelntenance measureso Nornal m4latsnanee shall be nade rdthout delay durfn€ thc non-flood season.

Gr safetv Egpch lnspectlon. ALL flrst aid actlrrltlee Ln conrrection wlth flood emergencies are under the super:nisLon of the chlefr safety hanch. At the beglnning of each flood season and perLodlcally thereafter, as reqrdred, be rdll inspect the proJect, see that proper equlpnent le at hand, and see that the dan-tender end trts assistants are adegrrately lnstructed l.n first aid procedures and safety. Approprlate eq,rlpnent includes (but ls not riotea to) standard flrst ald ldts and Euch itens as brankets, stretchers, safety-belts, ILfe u.nes and kapok vestsn Grappliig irone ane pro-vlded fron the base yard and gas detectors anilorrgen defictenc| lanpe (wou larnps) are provlaea uy the los angeleo Distriet Offiee.

^ 2.10. Putles of_the dan tepder. The dan tender or his assistant is reqrlred to perfom the foltodng dutlesl

&. Be present at the dam urhen ralnfall or runoff ls occurrd-ag;

b. *" lFt al.l eqripment at the proJect, includlng recordlng and indi,gatine qgq9s, gite rneshanr snl $wer'unrt-, raEro, €tc.e ls in oSrnatlag coadltion;

2-4, cr PErform routire test operatlons;

d. 0perate the gatee ln accordsnce wlth lnstnrctlons frou the llydrology & Reseryolr ReguJatlons Seetlon;

€r FoILow the flrcd gate olrration schedule posted in tbe controL house ln the absence of comrnications rdth the Hydrology & Resetrotr fiegulatlons Seotlon or ln thE abgence of a representative fron that grorpi

f. Serrice aLL gages a.nd recorders, uind the eloeks, lnstall nEw records paper, etcl

So Guard the proJect agalnst vanda-llsu, sabotage and fireo;

h. Guard agalnst unsafe condltione ln the proJeet areai

l. Report on traelnssing and eneroaeluent of r{.ght-of-way;

J. l,falntaln routine records, Lncludlng water surface elevations, outflou gage heighto, preclpltatLon anoturts, gate openings and logs on prescrLbed forzs.

2.11o Rout-lng test orEt-ratloE. The dlem tender or hts asslstants shall test-dperate the servlce gates and electrd.caL faclLlties ln the control houge everJr 30 +yt and the standby power nnlt every 15 days" Test operatlon reporte (exhlblt D) sha-ll be conpleted ln tri.pllcate af,ter eaoh teet. One copy shall bo pronptry zubnltted to the ctr-tef, Englneerd.ag Dlrrlslon, one copy to the Ctdef, Constnrctl.on Dlvielon, and one copy shalL be retalaed by the dem tgnds3.

( i

2-.5 e

SEOTION 3 . RESERVOIR AND EI'iBANIO{ENT

.3.01. Egseryglr. The flood control reser:volr, at spllIrlay 9re9t, elevatlon U75.O, has a gross capacity of 7rV7O acre-feet includlng an allowance of 11500 abre-feet for sediment and debris st'orage. The reservolr can control the reservolr d.esign flood., rrith a p9* lnflow of 91300 cublc f,eet per seeond, to a ma:dnun outilow of 1r@0 sublc feet-per second rclth the watei srrfaee at splrlr.ray cregt" No storage for rlater conEervatlon ls provlded. (See drar,ring, flLe no. Ja6/3o, edriblt r)

. 3,o2- Ftru{osgt. The enbanliment ls a conpacted earthfiLl stnrcture nith a cry9t length of 2161,0 feet, a crest rrj.dth of 20 feet, a na:dmrm height of 99 feet above streambed, and an upstrean and donnstrearn slope of L verticaL on j.25 horl,zonta-1. The crest of the dan extends from north to south for about ?5o feel, then continues La a southeasterly dlrection for about lrg6o feet.- the upstrea.n slotrr protectlon consLsts of a 6-lnch fliter blanlcet overieicl uittt g lav9r of dunped stonE 1.5 feet ttrlck. lhe part of the downetrean toE of ths .ta'n that ertends across the va_llea floor has toe protec- !19n 9o191st1tte.of a 6-lnah fllter blanket overlald with stone faclng 2 feet ttdck. (see drar*ings, frle aos. L26/30 and, Lz6/3L, "r.bibii-rT .3.O3. Access roads. AD access road leads fron relocated RsEe

Drlve Eoutb of the ,ran ia a northerly dtrection to the top of the enbanlment. From ttds access road dtverges a servlce road to the gaglng Etation at cbannel stetlon 386+86 and then goeo ln a southeast_ erJ,y diroctLon along the dowrstrean toe of the embanlment. an up-gtream senrl.ce road connects the outlet uorks uith tbe top of, the dam. An access road e:rbendg along the power Line of, tbe Soutbem 0allforrria EdiEon Conpaly on the rd.ght bsnk of the nesenroLr. An access road fron Rose Drlve to-the paved bank of the channel ls provld.ed near the brd.dge at statlon 36&t00. Turo accegs ramps are pnovlled fron GoLden avenue to the etrannel at both sldes of-br{.dge erosslng near eharmEl gtation 318+{i0. ALI have cable brricades at thelr 6ntrence to prevent unauthord.zed entry and are nalrrtalnEd by the U, S. Govenn-nent. (See dratrtags, file nos" LZ(,/3A, JA6/39, UA/8A alrd LZ6/}Z.-exhibit F)

-^^ ^3.9/r. To*g1r$. A fence, about Zr6OO feet long, Ls erected 500 feet south of the od.s of the darr runnlng eron!-ttre r"i.gbt-of-ray llne nostly paraalel to tbe .lqn.

It consLsts oi cuatn-Itnt fabrie supported on $-tnah &lameter gaLvanized steel posts and braces with nalleable flttLngs. rbo etrando of ga.lvanlzed forted rrLne ane eecurely fastened to the trneto above the fabr"i.c. Gates are provLd,ed where the fence crosses the roads" (see dranrlng, fl.l.e no. lbo/go, extrlblt F)

{ )' t

3-L

3,O5. PlezglaeterE. Tkrere are 6 plezoneters loaated at station 1fto0 and 6 at statlon ?24.oo, equtpped with neter boxes ancl Borden gageo ($ee drar*ing, f1Le no. L26fJ2, orhlblt F)

3.6. Insoectj-ong ggd nFlg.tensncg. fire dan tender or h5.s

asslstants shall perforr perd.odlc lnspectlons and rnsintenance and shall conpLete inspection check lJst no. 1, es shour ln exblblt D.

l{alntenance work ls deserdbed ta dotail ln the follovrlng paragmphsl

€tr &nbanlments. l"Iaintenarce nethods for repaLr or reconstnrction of the onban}msnte sharl depend upon the extent of the dSnq,ged section" rf the enban}meo1 darnnge ls *atlr sand and graver or other coarse granrrlar naterial nay be placed in 6-Lnch layere to restore the embarrloents" rf thE da!'"ge lo large, the f{11 shal] be nade in the sa.lre nanner as the ortglnaL eonetnrction; hono-genous natenia-l fron borror pLts approvcd for the proJect Ehall be placed ia unifom borizontaL layers not more than 6 ioches in depth and compacted to a density equal to thE origlnal embanloent section.

Before naldng any nepatrs, see dlrectlons outltred in paragraph 2.a6.

Too Rogk qgylne and 4emp. Danaged stonc pardngr spalJ blan&ets an{_ rd.prap on tbe upstrean stdo, the toes and ioct-frvea gutters sha-11 be repalred promptly. Any indLeatton of oettlenent, uplift or failure of tbe r{prap stnrctureo, shalL be reported by []re chLef, 0onstnrction DlviEion, to the ctllef, fuglneer{.ng Dlvlslon, for recoumendatton on renedlaL actLon.

Access roadEo Aeeess roads end, enbanknent berns shaLL be adeqrrately uaintalned for vehlcrrlar traveL so that ordinary rnelntenanee of the proJect and flood-flghtlng operatlons ntrL be facilitated"

d. Bumorrine a:xlual,g. BumorrX.ng anJpsLg ln or near the da.m shaLL be e:rternLnated. Shelr runways and dens shetL be opened and thoroughry conlucted et tbe sane ti-ne they are baclcfiLLed, Tiapping and polsonlng nay be used foi' the e:rteminetlon of bqrrowlng a*rlinar!.

rafomation ebout the best nethodo of aalnal exterulnatlon may be obtalnecl fron the aounty agrlarlturral. agent.

€o ilrzgntgug-oFetfu-e!1one" ReEcnratlon area used by authortaed personneL shelL be kept free fron obstnrctions that nay eause inJury or iaapede lnspectioasl rnsinteqnnc€e or flood-fightj.ng operatlons. lbteriala and oqrdpment sha'l't be Etored ln zueh a nay that tbey are nst hazardous to lnreonneln

f. Fenclne. _AlL'ranage to the fenclng sherl be pronptly repatred with new naterd.aL. ALI posts sha].] be kept Ln good iltnenent.

fr

1, A11 corner poEts and bracee shall b nalntalnEd flmr in thelr concrete eettings. Any saggtng strands of barbed wire shall be ironediately replaced" AIt painted posts shall be repainted lf necessar1r to lnzure their serrrlceablllty, ff any fasteni-ng chains or locks are mlsslng, they shaU lnmedtatel.y be replaecd"

g. Plezoneter F.egdlngs. The dan tender shall take readi-ngs of the 12 plezoneters at the sa^ne tine the per{-odJ.c routine lnspectLons are nade. The plezoneter readl.ngs sha1l be subnltted to the Foundatlon & I'{aterials Braneh of the Slglneering Divlslon for evaluatlon.

h. I'iiscellaneous. Ivllnor gtructures a-nd facl.litleo, not specifically descrdbed ln thls nanual, shall be lnspected at the same tlne that mqJor adJacent structures and faeilitLes are inspected;

nalntenance work shall be perfonned ln accorrlance lrlth that pnescr{.bed for stmctures of siniLar rneteri.aL. The dan tender shall seek assls-ta.nce fron the Chief, l,blntenerce Section, when uaintenance problemo ocour that are elther beyond hls exper{.ence or not deEcribed in thls ns.maL. The dam tender shall be fantliar uitb approved safety measureg and first atd tneatnent, utrlch are r.mder the supertCslon of the safety branch of the dlstrlct.

3-3 f) sEcTIoN 4 - OUTT"ET W0RI6

4.0I. General featnres. ThE outlet works ls entrenched in tbe right abutnent and conslsts malnly of the foalorrlng: An epproach ctrannel; an lntake tower; a trunsitloni aJr outlet conduit; a control rooni a floatwelli aa access bridgeS and e standby generator house.

The outlet works le founded on soft bedrock, except for a short length of, condnlt at the dowastrea"n end uhlch ls forrnded on alluvlum. For the outLet norks pJan, proflle, and detaLls, see drawings, file nos.

L26/38 to t%/57 iaclusive, exblblt F. Perttnent informatlon on tbe outLet works io gi.ven ln the followlng lnrtgraphs" l+.QZ. Aplrroach ctrannel Erd traehra.c!. The approach channel j.e foraed by relnforced-concrete retalnlng rnlls 15.5 feEt apart and is about 80 feet J.ong. Xlashrack bare are provlded Just upstrea.m from the gates to prevent $mken _1ogs or other $rnken nater{.al from enter-ing the intalre structure. (Approach channel is shown on drauing, flle no. L26/l,l and trashrack detalLs on dratrlngr file no. L26/l3t exhiblt F)

4.A3. Intake touer. The lntale tower ls a relnforced concrete stnrctur''e, 18 feet by 20 feet lnsLde and 82 feet 3 lnches tdghr measurEd. fron the floor of the gate hotst chamber to tbe floor of ths control roon on top of the towEr. It providos aceess to the gate cyllnders and hydrauJ.lc pipe llnes. If any part of the gate essenbly requlres repalr, Lt can be dlsaesenbled and removed from the gate holst chanber by holsting through the tower to the control room aad haullng over the aecess brldge on a dolly. Splral stafunmys lead Ln stages fron the gate holst chanber up to the control roou. Each stair landlag Ls prorrided ulth 2 lJ.ght flxturEe, A float veLL plpo, 18 inches O.D.e ts attached to the north naLL of the tower and 2 gat'e alr vent plpesr 18 lnches 0.D.e are attached to the south r.811. An 8-lnch s$rere al.r duct oonnecte to the l8-inch left gate ai.r vent pipe under the control. room floor and extends dowa to the gate cha,nbsr floor coDoec-ttng to a ventllatioa fan !,'b{ch provldes the gate bolst chasber wlth freeh air. BeLow the lntake tower are tro gated htake passsgeo, each 5 feet wlde and 6.5 feet hlgb. 0a top of tbe torpr, outlets are prorrlded on the upstnea.n slde for 2 portable flood llghts.

4.O4. Trapsitj.oa. A reinforced concrete traasltLon stmcture,

77.3 teet,long, Ls constnrcted, betuEen the tuo rectangul.ar gated passages and {ire si.ngle rectanguLar outlet condrrLt. It prorrldes gradrral charges ln tbe directlon of, flow between tbe two lntake pass-iges and the outlet condult. (See drawlng, fil,e no. L26ft+7, e>rtriblt F)

4.O5. Outlet condult. the outlet conduLt ls a reinforced concrete etructure UlL.1 feet J.ong. It Ls 4.75 feet ulde and 7 feet higb, The

4-1.

eondult ls eonstructed ln sectlons 20 feet long. Rrbber uater stops are provlded between the sectlons. Seepage collars are provS,ded at stations 3+21+.29, 3+80, /r+40 and aL 20 foot centers from statlon 6+00 to'l*l+Q. A11 flows from the outlet conduit dlscharge lnto the Carbon Canyon channel. (gee Orat;tng, file rro" L26/1r7, extrlbit F)

4.6. Control_sqgm. The control room on top of the intake

tower is 18.5 feet wlde, 20 feet long and 1/r feet hlgh. Ttre floor elevation ls 499.0. It contal.ns two notor pumps monnted on top of a squaro oil tank; hyilmulic control valves; a water stage recorder;

gate posltlon indlcators and recordersi a, rain gage; a toilet; a heater; a radio transnitter and recelver; and an opning for the top stage of the sptral. stalnray leadlng to the gate hoJ.st chamber.

Aceess fron the roadway on the crest of the dan to the control room ls provided by a senrlce bridge. In the cel1J'ng of the control roon j.s an eyebolt which rdIL proulde meang for liftlng varlouE par-bs of the gate assembly fron the gate holst etranber. (See dranrings, flle nos. 7.%/lr9 a^nd I%/5?, exhlblt F)

4.A7. Float r.rell. Ttre float uell lntake consists of a eoncrete Lntake Eump, 5 feet sqpare a.ad 5 feet 6 inches deep, located near thE upstrean toe of tbe dnn and the approach ctranneL of the outlet Horks.

It ls provided uith a vertlcaL perforated lutake plper a cleanout d.oor arrd a comurdcatlon plpe n ll.Lnch dlaneter and 99 feet long. The A-inch pipe corrects to a vertical float well pipe, 18 lnches ln diarneter, vtdch r{.ses ln the intake toner to the control room floor wbere it connects nith a water leveL recorder tabLe. A L-lneh r*ater pipe exbends over the l8-lnch pipe tftere a gate valve ts providEd for flushlag float usll. (See amnngs, fiJ,e aos. )26/56, L26/5? and I26n8, exfribit F)

4.08. A,ecess bridec. The aeeess bridge is a reinforoed concrete deck on steel girdero and rnelnforeed concrete br{.dge piers. It lE about 187 feet 3.ong and 9 feet { inches wide trlth a 6-foot roadr.ray, and serrreg as access from the top of the darn t9 the control room.

The br{.dge is deelgned for a }[vo Loed of 60 pound.s per square foot of the 6-foot ulde roadnay surface nhich would 11&1t the naxtrun conoentrated live load to I tons. Blectric Jight Ls provlded by five curb llght flxbures, eqlrally spaced. (See Oradnge, file nos. L26/39 and l%/5L Lo I?6/5/j inclusive, exhlbit .u-) l+.Q9. Stapdby gencm.tor house. The house for the diesel genera-tor standby unlt ls Eituated on top of the enbanloent oppooitE the access br:ldge. It ls a relnforced-concrete struoturo 15.5 feet wide, 16 feet long and 9.5 feet trieh (tnsLde dLnensions). It contalng e 40-I{W dlesel generator unit, tvo Z75 gellon dleseL gosl tanks, a control panel for the ewltoh.{ver from comercial power to generator power, and the necessar? appurtenancesn (See eramng, fl1e no. L26/74, extriblt F, and paragmph 1.Ol,p) il l+-2

\J

4.10. Inspectlogg and na,lnts,nance. Ths da.m tender or his

asslstants shall inspect each year, bofore the flood season starts, the intErior of the outLet works stnrcture and the firll length of the outlet condults and shell conplete lnspection check l[st, as showir ln exhlblt C. Inspectiou ehall be acconpillshed by two persons, one to sta.nd by for rescue,if requlred,. In addltlon to inspection and maln-tenance uork described ln lnragmph 3.06 and applJ.cable to thLs section, the dan tender ghall perfonn nalntenance rlork pertainlng nostl.y to the outlet stnrctureo, as described, in the follorrlng subparagraphs" dc @!. the channel shall be kept free of driftwood, trash, silt and other dEbrle. Dr{.ftuood, bnroh, weeds and any othcr conbustible trash on the proJect shall be burnod safeJ.y ln areas removed fron any str:uctures. InconbustLble acctrnulatlons shall be hauled away and dunped ln approved diepooal areas.

b. Conc_rg-te stnrctures. &Ll concrete ln the outlet works sball be lnspected and repaired as soon as any relnforclng steel ls exposed. Repalrs sha-lL be nade by thoroughly eLeentng tbe surface by chlpplng or sandblasting and hrtldlng the concrete up to lboriglnal sectLon. the lntake sunp for the fLoat nell shaLJ. be laspected and cleaned annually.

or OontroL roon .and stFndby e_energbqE_Lousg. These stmcturree shal.l be clean, ord,erJ.y and i.n a state of, good repalr at aLI tlnese both lnslde and outside. AU 1lght hrlbs shall be operable at alL tinee. The uat€r, plunblng and sewage &lsposa-l systens sball be ualntalned ttght a.nd free fron Lea.ks" Any worn or defectlve waEher ln tbe rater faucet shalL be replaced at orcsr l{ater closet shall be kept clean and free fron obJectlonable odors. lhe d.eetrd.cal systen ehaLl be ualntaLned free fron shorts and grounds. Panelboards shall be kept clean and free fron &ret. If inspection discloses that any painted gurfaces are not adeqrately protected, they sha-ll be thoroughly oLeaned and repal.nted. Any leaks in the roofe shall be pronpbJ.y repalred. Doors shall be kept ln good shape and locked to protect the equLpment fron dustn naln, a^ud vandal:lm, d,. Accggs bd-dee. PerdodLe lnspectlon of the access brldge lncludee the condltion of the concnete ln deck arrd pLers, the paint on metal strrfaceo, hendnalls, etc. Itens requlzd.ng repalr shall be reported lu check l[st, exhiblt C.

f l sEcftoN 5

SPItI[,lAY

5.01. General feqt$-ree. The spilluay ls a detached structure at the east abutment on the left slde of the oanyon. The spilluay structure consists of an approach channel, a relnforced-concrete control section ond a relnforced-concr€te drop stmeture and bucket.

(See arawings, fl-le nos. L26/33 b f26/27 incluslve, e>cblbft F) A short doscriptlon of the features is contalned in the follor.ring paragraphs, 5.O2. Splllway apploach channel. The splllway approach ctunnel ls an unlLned, trrapezoidaL chennel about 535 teet long. rt has a bottom lrlalth of 100 feet and slde slopes of 1 on 1.5" Grouted stone gutters are installed at the top of side slopes to take earc of slde dralnageo (See drardng, fi.le no. 126/33, extrlbit F)

5.O3. Contr-ol sectlon. The control sectlon, wtrich connects the approach ctranneL and the drop stnrcture and bucket, is a concrete-llned trapezoirrel sectlon 50 feet long. Ttre botton width varies fron 100 feet at statlon U+5O to L25 f,eet at station 15+00 (spllluay crest, elevatlon l+75.0). The slde sLopes vary from 1 verbleal on 1.5 horizontal at statlon U+5O to I on 2.25 at, statlon 15+00. Ttre upuard slope of the lnvert fron statlon l/r+50 to statlon 15+00 1s 0.135. A concrete cutoff waIL, wtdch ertends to a depth of about ? feet beLou the slabs of the invert and the slde slopes, is provtded at statlon J.l,+50. Grouted stone gutters at the top of slde slopeE take eare of side drainage. (See drawing, file no. L26/35, extriblt F)

5,Ol+" Drop strycture and bucketn The drop stnrcture is a concrete-lined tnapezoidal ctrarnel with a basa rrldth of J.25 feet, a length of 500 feet, and side slopes of I on 2.25. Ttre dor.ruard slope of the inver{ fron the spilluay crest at statlon 15+00 to etatlon 1?{€0 is 0.1150 and fron there to the tucket 0.1400. A steel sheet plllng eutoff wa].l and an apron of derrlck etone about Lo feet thlck at the end of the bucket protect the dotrnstrea.na encl of the splllway gBalnst rrndernlnlng. (See dratrlng, flle no. L26/350 exhibtt F)

5.O5. Inspgc!'Lons and nalnt'elrance. Tbe dnn teader or hlE assistante shall perform per{.odtc lnspecti.ong and nalntEnanc€ &coor-dlng to paragraph 2"O9s tltled Inspeetions and nalnterranee, and sha-ll conplete lnspectlon check lLst as shown Ln e:rtrlblt C. I?re spillmy shalL bo lnspected at least once a year during the dry season"

5-L

SECTION 6

CARB0N OANYON CHN\INEL

6,01. 9@J. The channel, lnclu.{tng the upstrean transition, Ls an open rectanguLar channoL, 4rI25.7O feet long, erbendlng fron station 389+Q5.7O to statlon 3{l+8O. T}re ctrannel ls covered between stations 382+l+9 and 3BO+30 for Rose Drive crosslngu and betr.reen statlons 3%+3o and 355+61r, for rnperd.al Highway and Facifla Electric Raj.lroad crossingso Ttre tra^nsLtl.on section, wldch is 80 feet Long, connects the outlot con&rit of the dam uith the upstrEa.m end of the chanrrel. The .width of the transitlon section ranges fr:sm l+.75 feet, to 10 feot and the wall" helght frron 9 feet to 5.5 feet" lhe etrannel wldth rarrges fron 10 feet to 1{ feet rdth wa]l heights from 5.5 feet to 10 feet. At the doulstrearn end, a crrtoff wall of 32-pound steel sheet pillng, 25.5 feet, lor€r is driven lato the gror.urd across ths channel and Ls backed by a derrd.ck stone apron to prevent nnderuinlng" Near the dowrstrean end, the Golden Avenue bridge crosses the chqnneL" (SEe arawings, file nos. L26ft9 to 126/90 lncluslve, e:rhtbit F)

6tO2, Eggg,g. Safety guerd fences nrr continuously on top of the walls on both Eides of the channel fron the upstrea.n end to the downstrea.m end, except for gaps at the crossiugs of Rose H.ve arrd Inperial illghuayr where fences nm across the charrnel. They conslst of 2-lnoh dlanond+esh chaln llnk galvanlzed wlre fencing, 36-lncheE uidE and are supported on ld-tneh dlaneter galvanlzed steel plpe posts grouted lnto the top of the waAls. Ttro strands of ga-lva.rrlzed barbed wlre are secrrrely fastened to the pipe posts above the nesh fencing. (See arauing, flle no" I26/8e, exnfUft f)

6:Q3. IhalnaEe stllc'Q$res. A 36-ineh reinforced eoncrete piper about 60 feet long, ls prorrlded for the dl,scharge of slde drainage through the west cha:urel ueIL near station 358. A 36-lnch eornrgated metal pipe runs under Rose H.ve and disehargee into the channel about stEtlon 378 tbrough the east chsnnel wall. ProvLelon for side drainage along the rest of the ctrannel conslsts of sS.oplng the back-f111 bettlnd the cbanneL ln order to ensure the ontranee of overland flows lnto the cherrnol" (For concrete draln pipe, eee drasing, flle

no. L26/88 and for cornrgated netal drain pipe un&er RosE Drive, see drawing, file ns" L26/LA2, extribit F)

6.04. Inspectton and uaintenalrce. The dann tender or hle assis-tants sha-ll tnspeat each year, before the flood season starte, the full lengtb of the channel and shElL conplete the lnspectlon eheck 1lst, as shonn ln extrlblt C. ldalntenance of the ehannel and the f,ences ls descrd-bed Ln paragraphl 3.06 ard /r,.10. Dre.in pipes shau be kept free from any obstnretlon that would affect a free fJ.ow through the pipes.

{ l' v

6-t l l\ t , SECTION 7

GATES, florSTS AND MACHTNERY

7.0L. @!9g. 1\ro slide gates, 5 feet wlde by 6 feet 6 lnches hlgh, are set ln the concnete l-ntake structute" The total hydro-statlc load on each gate for nald-run water surface elevation /t93.7 is appro:d.nately 2J7.5OO pounds. The gate assenbly includee the foUouing parte: (a) gate leaves whlch are cast steel, (b) eate franes and bonnets are cast iron, (c) bonnet covers are cast oteel,

(d) gate leaf stens are K-moneL netal, (e) Ueartng seal otrlps on gato leaves and gate bodies are broaze of dlsslnllar composlti.on, and (f) bottorn seaLs are cast steel fra&es nlth undercut slde ualls pouned full of babbltt netal. (Fo.r gate aesenbly and detatle, see draruings, fllo nos, W/St Lo L26hO incluslve, exlrlbtt F)

- 7.O2. @!8!g. the two hydraullc holst cyllnders are 7 feet ft lnches long with 18 tnches bore, fabricated of steel" The holst oylinder heads are cast steel; the hoLst pLstons are cast lron, 18 Lnches in diareter, 1,0-1rl8 lnehes hJ.gh and are equipped with 4 pLston rings and /r Garlock paclrlng r{.ngs. (See arawing, flJ.e no" L26/65, extrlbtt F)

7.O3. Operatine nachlnery. Operating uacfunery conslsts of

(a) two prlltp@ stairouy nnlt, anct (c) a hyiraultc system. A short descrLptlon ls contalned.ln the followlng Fara-graphsr

Er Rrmps and notors. Two vane-tgn constant de1ivery, hlgh preszure o11 punps with capaclties of about 12 gallons per nlnute, are drd.ven by two 7b hp, J.200 rpn, 60 cycle, zz1fl4lil volts, 3 phaee notors, located ln the control room. Only one punp and notor ls requlred for gate operatlons, shlle the other unit senree as etandgr. CircuLt swttchee ll3 arLd #S ln Porer Panel ttPtr ane key l.nterlocked so that only one $ bp hSrdraullc punp notor can be ln operatlon at one tlme. F:l,ectrl.c pouer for the motors J.s mrpplled by the Southerr CeUfornl.a Edieon 0onpany at, 24Q volt, 3 phase, 6o cycle. (see Orawtng, f,iLe no. L26/68 and L26nL, extrlblt F) bu Standbv unlt. A dteseL generator urdt Ls lnstalled la the etandby generator houee to prorrlde electrd.c pouer lf the connerolal Edleon power failE. The unlt Lncludes a {O ld.lowatt, 2/r0 vol.t, J,200 rpm, 60 cycle, 3 phase generatort a & oycle, lntermal conbustlon dlesel englne, equlpped wlth a hydraulle starter and a tlooduard govertort and two n5 g{. dlesel oll storage tenks. A aonduit carrLes the power ryirres to the control rooltro (See drar.rtng, fLle no. L%nlr, e:rhlblt F)

7-r co ltv.dlglu&lc evsten. The hydraulic oiI preszure systen ls actlvatea-Uy {fectr{.ea11y ponered otl pttups and controlled bit +-rn"y valves" The $lnoh, ochedule 80, extra strong plplng eltends-f,ron the control room dorm to the gate hoists. The force exerbed by tbe oil pressure forces the plstons in the bolst cyU-nders up or donnp whLcb G tura ralses or lowere the gates. The bydraullc oi"ssnrr" oit ts stored ln a rectangular 90 gal. te.nk ln the controL-"oor, (See drarring, ftle no. M6/@, e:rhlbJ.t I and sketeh aa pl94e 7'5, Hydraulic Diagra.m)

7.Ol+. Gate operatlonll. Ttre gates are raised and lowered by means of hyaraultc hoist cyllnders actlvated by otl pregsure uhlch is generated ty ebctrlc powered hlgh preo$re olL Punps, located ln the eontroL tootro Ttre actrral. operatlon of the gates ls acconpHshed' through nanlpulatLon of 4-rny valves, one for each gate. SgluyT trans&ttters are nechanlcally connected to gate posLtl.on lndlcators and recordere located ln the control roon uhlch autonatlcally lndtcate and record gate opeal"ng hel-gbts" ftrere ie one overload relief valve at the punp unltr Eet at approd.nately 800 ps!" Each hoist cylinder J,s egrrtpped with a counterbalance va1ve, se! at l0 psl, in the pfpeffnc that connects nith the botton of the cy1ind,e1. Durlng the gate Lloe{.g stroke, thte valve da.upeno to a great extent any vlbritlons caueed by blgb velocl.ty flow of rnter nnder the gate leaf and prevente excEeslve preesure drope ln the pipellne tbat corurects rrlth- the top of the cyU-nder. the gate openlng an{ gloslng_ opecd ls approd.nateiy one fool per d.nute. (See dranlng, flle no. L26/68, eiitrUtt r anit }Iydraulle-Flow Dlagra.un Bage ?-0')

7.O5. Inspectlons. tgsts and rnaintena+€. The dan tender or his asElstante sfraff perforr perd.odic lnspectJ.one, teets and nalntena'ncet as deEcribed in paragraphe 2.10 and 2.lL and shell conplete the Lnolnctlon check- IJst as shorn ln exhibLt C. l{alntenalce uork per-tainfng to sEnrlce gatea Ls outliaed ln the fol.loulng paragraphsa

8r ggglgl. ltre gate assembHee s!9r1 be rnalntalned ln the best possible opo-ratlng conditlon. ltrey shall be tested once every nonth and ttre report (see e)rhlbtt D) shaLL be zubmltted to the Engl-neering Dlvlslon- by the Goastructlon DlrrLsion. RepaJ.rs, wtrLch shal].

be nade by eJ,ectrLclans and nectranlcs fnom the dlstrlct base Vetdr sha1l confor:n to the standarde apecLfled ln the contract op€clficatLoas for the or"Lglnal Uorko loose, danaged, unserrriceable, or nlssLng parts shall be pronptly ttghtened,, relnlred or replaced.

b. @!9g. Gates nrst come to a tnre closure agalnst the botton seaI. The Chlef, hgineerLng Divisionrsball be notLfled by tle Chlef, Constnrction DlvtgJ.on, uhenever the gates fatl to cloge tlghtly or whenever tbe seals are daneged. Gate seal zurfaees sha1l be kept clean and free fron mrd and sand, and tbe botton seallng sudace

7-2

EhalL be kept free from rocks or other obstnrctlons. Each gate ehall stop iutonatlcally at the fully open position and shall close tlghtly witUout sbock. Gate positlon indlcators Ln the control room ana staft gages on the hoiEt cyllnders shal-l be adjusted to Ebow the aetuel gate openlng helght above the gate oiIL.

e. Ele_ctrlcal eouLpnen!. Eleetrical eqniprnent shalJ- be tested every lO days or oftener Lf defecto deveLop" Equipnent removed for repaXr or alteratlon shnll be replaced uithout delay and tested a.fter ielnstalletion. If wlr{.ng becomes damp, megger tests shall be nade of lnEu-latton.