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                                                                                                 U.S. NEWS Friday 10 May 2019
            Officials seek to open major



            spillway on Mississippi River




            NEW ORLEANS (AP) — Army  year has not been average  ages  in  2011,  about  $170
            Corps of Engineers officials  at all," the New Orleans dis-  billion of that in Louisiana.
            in Louisiana aim to open a  trict's  deputy  commander,  Officials said they don't ex-
            historic  flood  control  struc-  Maj.  Jordon  Davis,  said  pect to open the Morgan-
            ture  above  New  Orleans  Thursday.                      za Spillway this year.
            on Tuesday for an unprec-    The water is diverted along  Graschel  said  the  lower
            edented  second  time  in  a     6-mile   (9.7-kilometer)  Mississippi hit its first peak in
            one year.                    course  of  guide  levees  to  March and never got down
            "It's   an   unprecedented  brackish  Lake  Pontchar-     to normal. It could reach a
            amount  of  water  that's  train, after which it flows to  seasonal  norm  until  some-
            coming     down,"    David  the Mississippi Sound in the  time in July if there isn't any
            Ramirez,   chief   of   wa-  Gulf of Mexico.              additional significant rain in   Clarance  Ferguson,  left,  and  grandson  Demarious  Ferguson
            ter  management  for  the  Moby       Solangi,   director  the Missouri and Ohio river   navigate their boat long Hugh Street in south Greenville, Miss.,
                                                                                                   Thursday, May 9, 2019.
            Corps' New Orleans District,  of  the  Institute  for  Marine  areas, he said.q                                                 Associated Press
            told reporters Thursday.     Mammal  Studies  in  Gulf-
            The  request  for  authoriza-  port,  Mississippi,  said  he's
            tion  from  the  Corps'  Missis-  concerned about the spill-
            sippi Valley Division comes  way  opening,  because  it
            as  floods  across  the  Mid-  means  that  polluted  fresh
            west  have  caused  billions  water  will  flow  into  the
            of  dollars  in  damage  to  Sound,  a  nursery  for  dol-
            homes, farms and business-   phins  and  endangered
            es.                          Kemp's ridley sea turtles.
            Continued rains in the Mid-  More of those animals died
            west  and  Ohio  Valley  and  in  April  than  in  any  April
            floodwaters from the upper  over the past five years, he
            Mississippi  River  are  head-  said,  with  28  dolphins  and
            ing  down  the  Mississippi,  57 sea turtles found dead.
            National  Weather  Service  Solangi  said  many  of  the
            hydrologist  Jeffrey  Gra-   dolphins  had  lesions  on
            schel  said.  In  addition,  he  their bodies from exposure
            noted,  storms  are  expect-  to  fresh  water,  which  also
            ed to dump 5 to 10 inches  damages  oyster  reefs  and
            (13  to  25  centimeters)  of  blue  crabs,  on  which  the
            rain  in  parts  of  Louisiana  turtles feed, and plants that
            and Arkansas.                are food for animals lower
            The  Bonnet  Carré  Spillway  on the food chain.
            gets  opened  to  relieve  He said 73 dolphins and 79
            stress  on  New  Orleans  le-  sea turtles have died so far
            vees  when  the  Mississippi  this  year.  That  compares,
            flows  at  1.25  million  cubic  for example, to 82 dolphin
            feet  (35,400  cubic  meters)  deaths  in  all  of  2016,  the
            per second — fast enough  highest annual total in the
            to fill the Empire State Build-  past five years. "We haven't
            ing in 30 seconds.           even started the year and
            "The  risks  in  not  operating  it's 73," he said.
            the spillway as it is designed  Davis said the Corps has re-
            ... would be potentially cat-  ceived  "very  inconclusive"
            astrophic,"  corps  spokes-  reports  about  the  deaths
            man Ricky Boyett said.       from the National Oceanic
            The  spillway,  completed  and  Atmospheric  Adminis-
            in  1931,  is  a  1.5-mile-long  tration.
            (2.4-kilometer-long)   con-  "The wildlife concern is very
            struction  of  350  concrete  real,"  but  the  trigger  point
            bays  and  7,000  huge  tim-  of  1.25  million  cubic  feet
            bers  called  needles.  Its  per second is set in law, he
            unusually  early  opening  in  said.
            February  marked  the  13th  Boyett  said  a  3-  to  5-year
            time it has been used over-  hydrologic study of the Mis-
            all, but only the second time  sissippi  and  other  rivers  in
            it's  been  used  in  consecu-  Louisiana  began  recently.
            tive  years.  Earlier  this  year,  "It  will  help  us  understand
            206  bays  were  opened,  if  we're  doing  it  the  right
            discharging  213,000  cubic  way," he said.
            feet (6,032 cubic meters) of  He  also  said  opening  the
            water  per  second  into  the  Bonnet Carré and the Mor-
            spillway.                    ganza  Spillway  further  up-
            "An  average  flood  season  river averted an estimated
            is  from  March  to  May.  This  $250  billion  in  flood  dam-
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