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<br />32
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<br />ACTIONS AND OPE~ATIO~}\t"CRITERIA:,F9R CON
<br />
<br />PROVISIONS OF THE
<br />FLOOD CONTROL ACT
<br />OF 1960
<br />
<br />PCA 1
<br />
<br />The 1960 Act allows tot no car-
<br />ryover reservoir storage; runoff
<br />stored in the spring and summer
<br />must be released by M:arch 31 of
<br />the following year.
<br />
<br />FCA2
<br />
<br />Reservoirl:elc'ases must be oper-
<br />ated in aCl'On:lanccwith the Rio
<br />Grande Compact unless the
<br />Commissioners unanimously
<br />approve a deviation or fin emer-
<br />gency exists a(f<<iing t!:le safe~y
<br />of ,major stnll,,'tures or endanger-
<br />inglife.
<br />
<br />PCA3
<br />
<br />Releases of tloodwaters'from
<br />Abiquiu Reserwir are generally
<br />limited to the alTIminl thai can \>c
<br />carried in the: Rio Chama with-
<br />out doing nood damage.
<br />
<br />FCA4
<br />
<br />Vvhennaiui'aI flow of the Rio
<br />Grande ilt the OtoWi gaging sta-
<br />lioit dmps bdow 1,500 cis during
<br />the irrigationseason,stofed
<br />water genertllly may riot be
<br />released from Abiquiu and
<br />COchiti ~sen"''Olts after July 1.
<br />
<br />FCA5
<br />
<br />The flood Control hief 1%0
<br />authorized th~ construction of
<br />Cocbiti Dam as,the primary
<br />flood (.'ontrol structure on tht>
<br />mainsten\ of the Rio Grande.
<br />
<br />FCA6
<br />
<br />Operatiol\s at Cochiti tire geared
<br />to keep..)12,oOO acreJeet of stor-
<br />age c..Plcity aWlilabJe for han-
<br />dling t'I00dscaused by summer
<br />rainstorms.
<br />
<br />FCA7
<br />
<br />Stored flO(l(h..'aters at Jemez
<br />Rt!servoir are released at the
<br />maximum ritte possible to,make
<br />room tor, summer flooding
<br />potentially caused by SUbSl'-'
<br />queot storms.
<br />
<br />FCA8
<br />
<br />The 1960 Actauthorited the eon"
<br />s.truction of Galisteo Dam for
<br />flood control and sediment
<br />retl>ntion on .calisteo Creek.
<br />
<br />PCA9
<br />
<br />Operations at Cochiti and Jemez
<br />dams are coordinated to release
<br />the maximum amount of flow
<br />thniughthe'Rio Grande without
<br />causing flooding or damage to
<br />levees.
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<br />CORPS OF ENGINEERS
<br />ACTIVITIES
<br />
<br />COE!
<br />
<br />The Corps is :assessing ways'to
<br />reduce,~ooding caused by a loss
<br />of channel capaCity through th~
<br />Alamo~a area;due;t~!l build.up~
<br />of sediment. ,'; l.\,!
<br />
<br />COE2
<br />
<br />Operational decisions at Platoro
<br />Reservoir are fumed overby the
<br />Bureau of Reclamation to the
<br />Corps during floods,' purSuant to
<br />Sl'ction 7 of the Flood Corihol
<br />Act of 1944,
<br />
<br />CaE 3
<br />
<br />Flood control at Platoro ~eser~
<br />voir is iriltlated by the Corps
<br />when tile Conejos RivedloW at
<br />the Mogote gagitig'station ,
<br />"approa<:hes 2500.&, or 1600cfs
<br />at the Las Sauces gage.
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<br />CO~4 \1>
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<br />The'Corpscompleted AbiquiU
<br />qaInin 1%2 and_operates, the
<br />reservoir primarily to,C?ntn:'l.
<br />flOoding oitthe:Rio c:hatna and
<br />Rio Grande.
<br />
<br />COE:S
<br />
<br />~Thtt"C:Orp$ has qlJ1strUcted,~
<br />~,levees andQther:prote<:tive
<br />works in the J?spanolaJklley
<br />portionofthe RioGrandeFiood"
<br />w<lY;,authorized by the Flood.
<br />CbnltOl.Actof'1948., "
<br />
<br />CQE6 ;1
<br />
<br />Channel capacity oillie ,Rio
<br />Chama limits the c:orps'maxh
<br />mum release rate from Abiquiu
<br />Dam,
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<br />Th~_<::orps'compiete:d:Je.rnez
<br />~Darn in 1953.anduses it for-Jlood
<br />."control \i{IW_f\charinel capacity
<br />.' in theRio;G:rande'is approached
<br />dOWnst-reaffi.of. its confluence
<br />with:theJemezRiver. -
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<br />When n~in8-js'preditted, the
<br />Cores" AlbUquerque .qffice:mobi..
<br />Jizes its,Regulation:Ullitto;.{Iper~:
<br />a~ on ,'I'-t~lUnd~the~dock basis.
<br />i!fdt>J "
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<br />COE9
<br />
<br />In 9rder'tQ 'minimize_~Iosjor\and
<br />slo.ughing~ithe,rive.r, ~anks, the
<br />C9rps atternPt$ to jncreaseand
<br />decre.a~ flows'thtougll th~ Rio
<br />(;tallde at a gf-adual rate.
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<br />CQE10
<br />
<br />Under internal operaticmalcrite.
<br />:*' evAcuation ofstorage from ,.
<br />.. Corps te&4Voirs is g€-nerally
<br />held to a'tate th~ta1IOws the
<br />waters of the I{i? Grande to flow
<br />through the~s convey.at:lce
<br />cha.pnel atSan ,Acacia to San
<br />MatclaL ..'
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