Quantcast

Tampa Bay reservoir $129 million renovation ramping up - Greenville, NC | News | Weather | Sports - WNCT.com

Tampa Bay reservoir $129 million renovation ramping up

Posted: Updated:
HILLSBOROUGH COUNTY, FL (WFLA) -

Tampa Bay Water's regional reservoir is just shy of 8 years old and heavy machinery is now ripping apart its inner walls to begin the process of repairing and preventing widespread cracking.

In February, Kiewit Infrastructure Group's hydraulic hammers began the enormous task of breaking up the soil cement lining the 5 miles of the Bill Young Regional Reservoir's interior walls.

Large excavators continue ripping up the soil cement, dozers push it down the dam's steep banks and enormous dump trucks haul it off.

"It's a lot of work," Tampa Bay Water's engineering support manager, Jonathan Kennedy said.

The fix, as it is called, requires gutting the interior walls, removing the soil cement, the dirt below it, called the soil wedge, and a PVC geomembrane that lines the walls preventing seepage.

"In many ways this is like disassembling a layer cake and there's a lot of work to get down to the core before they can start the reconstruction," Kennedy said.

The reconstruction begins with Kiewit installing a drainage system. A new geomembrane which is being made in Spain, will be added, along with a new soil wedge and thicker, stronger soil cement.

"It's as though you had a car engine with a leaking gasket and the gasket itself is a relatively minor repair but you have to disassemble the engine in order to get to it," Kennedy added.

The work will keep the reservoir, which supplies roughly half of the drinking water for the Tampa bay community, off line at least until the end of the summer of 2014. The reservoir renovation will cost water customers in Hillsborough, Pinellas and Pasco counties $129 million dollars.

An 8 On Your Side investigation revealed in 2007 widespread cracking of the reservoir's soil cement. Video shot from Eagle 8 showed crews attempting repairs by pumping a cement-grout mixture into the cracking soil cement. Some of the cracks were 300 feet long.

At the time Tampa Bay Water project manager Amanda Rice indicated the repairs were nothing out of the ordinary.

"This is a route maintenance. Activity like this is conducted at all Tampa Bay Water facilities," Rice said.

The cracking turned out to be anything but routine. It spread and became worse. Gaps several inches wide and hundreds of feet long continued forming.

Repairs did not hold.

A portion of the soil cement lining the south wall collapsed. Tampa Bay Water insists the cracking never threatened the integrity of the reservoir's walls but did limit its ability to hold water.

At full capacity the reservoir holds 15.5 billion gallons of water.

Tampa Bay Water spent millions on repairs, investigating the cause and legal bills.

It determined the cracking was caused by water that became trapped in the soil wedge. During draw downs, water pressure would build up behind the soil cement and crack it.

The agency sued designer HDR Inc in federal court in 2012, claiming the company's reservoir design was flawed. A jury disagreed, saddling Tampa Bay Water with the cost of repairs.

"It's a $129 million dollar project which translates into a little over a dollar a month on the average bill," Kennedy said.

Kiewit is ramping up construction at the reservoir. It plans to have about 150 workers on site, working two shifts.

In order to increase efficiency, different stages of work will be going on in several areas of the facility.

Kennedy says Tampa Bay Water is shooting to put the reservoir back into partial service by the end of the summer of 2014.

"In order to do that (Kiewit's) going to be finishing the project from the bottom up so that we can get permission to put some water in the lower reaches while it finishes the construction of the upper reaches," he said.

Kennedy hopes to put about 8 billion gallons of water in the reservoir at that time, which would supply up to 90 million gallons of water a day to customers.

"The existing facility does not have a drain in its system, that was left out of the design, and by putting the drain into this design, we know that this project will be successful when it's complete," Kennedy said.

  • 8 On Your SideMore>>

  • How to find out if sinkholes are in your neighborhood

    How to find out if sinkholes are in your neighborhood

    Monday, July 21 2014 5:43 PM EDT2014-07-21 21:43:25 GMT
    A 2004 sinkhole in Deltona was four lanes wide. Associated Press file photoA 2004 sinkhole in Deltona was four lanes wide. Associated Press file photo
    Wondering if there are sinkholes in your neighborhood? Or, are you purchasing a home and want to know about sinkhole activity in the area?
    Wondering if there are sinkholes in your neighborhood? Or, are you purchasing a home and want to know about sinkhole activity in the area?
  • Flood insurance refunds issued beginning Oct. 1

    Flood insurance refunds issued beginning Oct. 1

    Monday, July 21 2014 3:59 PM EDT2014-07-21 19:59:42 GMT
    Rep. Bill Cassidy (R-LA) announced that the National Flood Insurance Program (NFIP) is continuing to implement the Grimm-Cassidy Substitute Amendment to the Homeowner Flood Insurance Affordability Act of 2014. Insurance companies will begin to issue refunds for applicable policyholders beginning October 1, 2014.
    Rep. Bill Cassidy (R-LA) announced that the National Flood Insurance Program (NFIP) is continuing to implement the Grimm-Cassidy Substitute Amendment to the Homeowner Flood Insurance Affordability Act of 2014. Insurance companies will begin to issue refunds for applicable policyholders beginning October 1, 2014.
  • Code Violators Skate in Hillsborough County

    Code Violators Skate in Hillsborough County

    Friday, July 18 2014 9:53 PM EDT2014-07-19 01:53:50 GMT
    If you want to let junk and trash pile up in your yard you can get away with it in Hillsborough county. 66 year old Brenda Owings has.She owns a property at 14508 Berkford Avenue in Citrus Park.Junk, trash and debris litter the lot from one end to the other. Neighbors have put up with the mess for 17 years."It's not a good situation, it needs to go," neighbor Larry Calder complained.County Code Enforcement can't make Owings do a thing at her property. Owings claims she lives in a house that's...
    If you want to let junk and trash pile up in your yard you can get away with it in Hillsborough county. 66 year old Brenda Owings has.She owns a property at 14508 Berkford Avenue in Citrus Park.Junk, trash and debris litter the lot from one end to the other. Neighbors have put up with the mess for 17 years."It's not a good situation, it needs to go," neighbor Larry Calder complained.County Code Enforcement can't make Owings do a thing at her property. Owings claims she lives in a house that's...
  • NewsMore>>

  • Two found dead after welfare check in Hudson

    Two found dead after welfare check in Hudson

    Tuesday, July 22 2014 5:44 AM EDT2014-07-22 09:44:54 GMT
    Pasco deputies are investigating the circumstances of the death of two people in Hudson found on Clark Street late Monday night.
    Pasco deputies are investigating the circumstances of the death of two people in Hudson found on Clark Street late Monday night.
  • MISSING: Bradenton girl after argument with dad

    MISSING: Bradenton girl after argument with dad

    Tuesday, July 22 2014 5:26 AM EDT2014-07-22 09:26:37 GMT
    Bianca Unique Agustdottir, 11, had a fight with her dad at the apartment on 53rd Avenue West in Bradenton Monday evening, and that was the last time she was seen. 
    Bianca Unique Agustdottir, 11, had a fight with her dad at the apartment on 53rd Avenue West in Bradenton Monday evening, and that was the last time she was seen. 
  • Police investigating Tampa boy's death as hit and run

    Police investigating Tampa boy's death as hit and run

    Tuesday, July 22 2014 4:23 AM EDT2014-07-22 08:23:58 GMT
    Marterrance Albury. Photo courtesy Albury's familyMarterrance Albury. Photo courtesy Albury's family
    New surveillance video has Tampa Police investigating 4-year-old Marterrance Albury's death as a hit and run. 
    New surveillance video has Tampa Police investigating 4-year-old Marterrance Albury's death as a hit and run. 
  • Most Popular StoriesMost Popular StoriesMore>>

  • 'Faces of Meth' program launched by Sheriff's office

    'Faces of Meth' program launched by Sheriff's office

    Monday, July 21 2014 6:37 PM EDT2014-07-21 22:37:35 GMT
    'Faces of Meth' is a project of the Multnomah County Sheriff’s Office.
    'Faces of Meth' is a project of the Multnomah County Sheriff’s Office.
  • Tampa Police now question if boy rolled from SUV

    Tampa Police now question if boy rolled from SUV

    Monday, July 21 2014 11:18 PM EDT2014-07-22 03:18:48 GMT
    Tampa Police are investigating the death of a 4-year-old boy who was found critically injured, sprawled on a Tampa road on Sunday night.Tampa Police are investigating the death of a 4-year-old boy who was found critically injured, sprawled on a Tampa road on Sunday night.
    Tampa Police are investigating the tragic death of a 4-year-old boy who was found critically injured, sprawled on a Tampa road on Sunday night. Marterrance Albury died at St. Joseph's Hospital on Monday morning.
    Tampa Police are investigating the tragic death of a 4-year-old boy who was found critically injured, sprawled on a Tampa road on Sunday night. Marterrance Albury died at St. Joseph's Hospital on Monday morning.
  • Family of 4-year-old boy killed on a Tampa street speaks out

    Family of 4-year-old boy killed on a Tampa street speaks out

    Monday, July 21 2014 11:36 PM EDT2014-07-22 03:36:45 GMT
    Marterrance AlburyMarterrance Albury
    "He's bad but he's a sweet bad. You know kids get into stuff and if he got into something, he would crawl up under the table and hide when he knows he is about to get in trouble,” said Williams as she remember her grandson Marterrance Albury who was killed Sunday
    "He's bad but he's a sweet bad. You know kids get into stuff and if he got into something, he would crawl up under the table and hide when he knows he is about to get in trouble,” said Williams as she remember her grandson Marterrance Albury who was killed Sunday
Powered by WorldNow

3221 South Evans Street
Greenville N.C. 27834

Telephone: 252.355.8500
Fax: 252.355.8568
Email: newsdesk@wnct.com

Can't find something?
Powered by WorldNow
All content © Copyright 2000 - 2014 Media General Communications Holdings, LLC. A Media General Company.