List Your Equipment  /  Dealer Login  /  Create Account

Post Maria, Damaged Dam Could Mean More Devastation for Puerto Ricans

The crack appeared after Hurricane Maria dumped more than 15 in. of rain, filling the 90-year-old dam’s reservoir to capacity.

Wed September 27, 2017 - National Edition
Emily Buenzle


If the dam bursts, the area could see life-threatening flash floods, New Scientist reported.
If the dam bursts, the area could see life-threatening flash floods, New Scientist reported.

Since it appeared Sept 22, the crack in Puerto Rico's Guajataca Dam has prompted a mass evacuation of up to 70,000 in the northwest region of the island.

The crack appeared after Hurricane Maria dumped more than 15 in. of rain, filling the 90-year-old dam's reservoir to capacity. The reservoir, which measures 4 sq. km. in area, holds close to 10.5 billion gallons of water. If the dam bursts, the area could see life-threatening flash floods, New Scientist reported. The Guajataca lake provides the region with hydroelectric power, as well as drinking water, adding even more to the damage wreaked by Maria.

“The integrity of the structure has been compromised in a significant way,” said Governor Ricardo Rossello.

According to Tracey Williamson, chairman of the British Dam Society, erosion is to blame.

“Photographs of the incident show there's structural damage at the base of the dam's spillway, where overflows appear to be eroding the bottom of the dam,” said Williamson. “Depending on whether the overflow continues or increases for a significant amount of time, there's a possibility that erosion could progress to the point where the dam could breach,” New Scientist reported.

However, there are options to stop the dam from failing, including:

  • reducing the water levels in the reservoir by draining some of the water via other outlets. Doing so would alleviate some of the water pressure and slow the spillway's water flow.
  • getting a series of high-volume pumps to divert the water away from the erosion area
  • stuffing the crack with material to keep the erosion from spreading.



  • Today's top stories

    Case Launches Minotaur DL550 Compact Dozer Loader

    Volvo CE to Showcase Machine, Services Innovation in Immersive Experience at ConExpo-Con/AGG 2023

    Kubota Awards $600,000 in 'Kubota Hometown Proud' Grants Nationwide

    AEM Applauds Passage of Historic Investment in Domestic Semiconductor Production

    Yanmar Compact Equipment Promotes Maintenance Kits for Convenient Servicing

    Maine Hospital's Continuing Expansion Could Soon Get $2M Funding Boost

    Tips for Minimizing Impact of Rising Fuel Prices

    West Side Tractor Announces New Hires, Promotions


     






    ceg-logo ceg-logo ceg-logo ceg-logo ceg-logo
    39.04690 \\ -77.49030 \\ Ashburn \\ VA