Lampasas to San Saba 138kV Transmission Line

Lampasas to San Saba 138kV Transmission Line

Lampasas to San Saba 138kV Transmission Line 

Type: Transmission
Scope: 33.4 miles of 138kV transmission line; steel and concrete poles
Location: Lometa, TX
Client: Lower Colorado River Authority

Irby Construction was awarded the LCRA Lampasas to San Saba 138kV transmission line project in December of 2016. This was a project located in Lometa, TX with a scope of 33.4 miles of 138kV transmission line including steel and concrete poles.

The project had some tight environmental constraints at the outset. Portions of the project were in a bird habitat and Irby had a limited time frame to complete this portion of the work before March 2017 when the bird habitat restrictions would go into place. Irby provided tools and equipment with almost 60 people and finished before the restrictions started. Subcontractor Asplundh Brush Control assisted with installation of environmental controls on the ROW.

Irby’s foundation group successfully self-performed the foundation scope, which included 22 drilled pier foundations. A major hurdle on the project was that our drilling operation encountered much more rock than anticipated. Careful planning and redeployment of resources, (including a drill rig from sister company Longfellow Drilling), allowed us to continue to make schedule. The project also included a railroad crossing and a major highway crossing which required significant planning and were accomplished successfully. With assistance from our affiliate operating unit North Houston Pole Line performing energized work in one section of the project, Irby successfully completed this project in January of 2018.

Start Date: December 2016
Completion Date: January 2018

 

If you would like to request information on this project or submit a request for bid, click here. 

 

Hardwood to Waelder Energized Transmission Project

Hardwood to Waelder Energized Transmission Project

Hardwood to Waelder Energized Transmission Project

Type: Transmission
Scope: 13.9 miles of 69kV energized transmission line
Location: Hardwood, TX
Client: Lower Colorado River Authority

Irby Construction was awarded the LCRA Hardwood to Waelder Energized Transmission Project in October of 2017. The goal of this project was to increase the reliability and capability of transmission facilities on T-145 between Harwood and Waelder substations. This was accomplished by upgrading the 12.6 mile 69kV stretch between substations to 138kV capable. The scope of work consisted of replacing 112 structures to complete the conductor upgrade.

In addition to the conductor upgrade, the scope included the installation of OPGW shield wire from Waelder substation to Flatonia substation. The construction for this project was performed on energized transmission lines, and Irby worked with Quanta Energized Services and affiliate company Probst to perform the energized work. Irby self-performed the foundations for this project. New structures included vertical configuration braced post concrete tangents and steel dead ends.

Start Date: November 2017
Completion Date: May 2018

 

If you would like to request information on this project or submit a request for bid, click here. 

 

Corbett-Sugar-Quarry 500kV Transmission Line

Corbett-Sugar-Quarry 500kV Transmission Line

Corbett-Sugar-Quarry 500kV Transmission Line

Type: Transmission
Scope: 68.3 miles of 500kV
Location: Palm Beach, Broward, and Miami-Dade Counties, FL

Client: NextEra Energy Resources

Irby Construction was awarded the Corbett – Sugar – Quarry 500kV Transmission Line Project on January 16th and immediately started work.

The project runs 69 miles from the Corbett and Sugar substations in Palm Beach County down to the Quarry substation in Miami-Dade County. It is a 500kV, single circuit, triple bundled line carrying 1272 ACSR/AW, (one) .472” OPGW, and (one) 7#8 AW OHGW.

The full scope of work also includes surveying, clearing the right-of-way, building access roads and structure pads, installing drilled pier foundations and anchor piles, and setting steel H-Frame structures and 3-pole concrete deadends. The majority of this line traverses through the environmentally sensitive Florida Everglades.

Unique to this project will be the construction of 15 miles through canal waterways utilizing barges, concrete pump lines, and amphibious equipment. This project will serve as a critical tie between two 500kV substations to increase reliability on the Florida Power & Light grid. Construction began on January 22, 2018 and is scheduled to complete in May of 2019.

Start Date: January 2018
Completion Date: In progress

 

If you would like to request information on this project or submit a request for bid, click here. 

 

Hurricane Irma

Hurricane Irma

Hurricane Irma

Type: Emergency Restoration
Scope: Over 300 Linemen 
Location: Various parts of Florida

As Irby Crews were wrapping up work in Texas following Hurricane Harvey, Hurricane Irma made landfall as the first Category 5 hurricane of the 2017 Atlantic hurricane season. On September 10 Irma’s winds reached 185 mph in Cuba. It was the most intense Atlantic hurricane to strike the United States since Katrina in 2005.

Less than one month after Harvey, but after that same amount of time on the job restoring power, Irby crews packed their bags and headed for Florida rather than going home.

“We had several crews working on a lot of different types of jobs before Hurricane Irma hit, but once we knew that she would hit Florida, they all sprang into action,” Brent Croft, General Superintendent said. “We had crews down in Southern Florida before the hurricane even made landfall so that they could be ready to work immediately after it passed over them.”

More than 300 Irby men performed work during the 2017 hurricane season. Many of those men worked both Hurricane Harvey and Hurricane Irma back to back. In total, Irby teams logged 114,000 restoration man-hours this hurricane season alongside many fellow Quanta companies.

Hurricane Harvey and Irma caused mass destruction to numerous regions in and surrounding the U.S. According to estimates from Moody’s Analytics, damage and lost productivity cost as much as $200 billion.

Start Date: September 2017
Completion Date: September 2017

Hurricane Harvey

Hurricane Harvey

Hurricane Harvey

Type: Emergency Restoration
Scope: 114,000 restoration hours
Location: Various parts of Texas and Louisiana

On August 25, 2017, Hurricane Harvey made landfall near Rockport, Texas as a Category 4 hurricane. Harvey was the first major hurricane of the 2017 Atlantic hurricane season. It was devastating. Winds as strong as 130 mph left extensive damage to power infrastructure in their wake along the Gulf Coast from Rockport to Southeast Texas and into Louisiana.

Irby Construction crews were prepared before the storm hit. As Harvey made landfall, caravans of bucket trucks drove toward Texas, so the power restoration process could begin as soon as rain and winds subsided.

“Emergency restoration is both the most grueling and the most gratifying work Irby linemen address,” said Chris Swindoll, Superintendent. “Restoring power is often restoring some sense of normalcy for communities hit by these storms. It’s a process we’re proud to be a part of.”

More than 300 Irby men performed work during the 2017 hurricane season. Many of those men worked both Hurricane Harvey and Hurricane Irma, a storm that followed just days later, back to back. In total, Irby teams logged 114,000 restoration man-hours alongside many fellow Quanta companies.

Hurricane Harvey and Irma caused mass destruction to numerous regions in and surrounding the U.S. According to estimates from Moody’s Analytics, damage and lost productivity cost as much as $200 billion.

Start Date: August 2017
Completion Date: October 2017