OFFICIALS WITH GAVINS POINT DAM NEAR YANKTON, SOUTH DAKOTA SAY A ZEBRA MUSSEL INFESTATION IS ONE OF THEIR BIGGEST CHALLENGES THIS YEAR.
MAINTENANCE AND OPERATIONS MANAGER ERIC JOHNSON SAYS THE PESTS CAN WEIGH INTAKE GATES DOWN BY 25-THOUSAND POUNDS.
JOHNSON SAYS IT’S BEEN A PROBLEM FOR OVER A DECADE.
HE SAYS CLEANING INTAKE GATES TAKES A LOT OF MONEY, TIME AND MAN POWER.
THE GATES WEIGH 88-THOUSAND POUNDS, SO ADDING 25-THOUSAND POUNDS OF ZEBRA MUSSELS CAN PUT A LOT OF STRESS ON THE MECHANISMS.
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