Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Port St. Joe-Callaway 230kV Transmission Line Upgrade Project

Type: Transmission
Scope: Performed the removal and rebuild of 34 miles of 230kV transmission line in the aftermath of Hurricane Michael.
Location: Port St. Joe, Florida
Client: Duke Energy

Duke Energy is one of the largest electric power holding companies in the United States, providing electricity to 7.7 million retail customers in six states. In December 2018, Duke Energy contracted Irby to perform the removal and reconstruction of 34 miles of 230kV transmission line from Port St. Joe to Callaway in the aftermath of Hurricane Michael.

The work scope was completed ahead of schedule in March 2019 with no injuries or environmental incidents with the assistance of several key subcontractors including Aldridge Electric, A&J Steel, HeliService Powerline Solutions, FireHawk Helicopters, ROW Masters, Probst Electric, and Thomasson Company.

Start Date: December 2018
Completion Date: March 2019

 

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

 

Lampasas-San Saba 138kV Transmission Line Construction Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Type: Transmission
Scope: Constructed 33.4 miles of 138kV transmission line including poles and foundations.​
Location: Lometa, Texas
Client: Lower Colorado River Authority

The Lower Colorado River Authority (“LCRA”) is a non-profit public utility providing wholesale power to over a million people in Texas. In December 2016, LCRA contracted Irby to construct 33.4 miles of 138kV transmission line from Lampasas to San Saba in central Texas.

The project was executed in consideration of a condensed LCRA schedule and habitat-specific environmental permitting requirements. The Irby scope included steel structures, poles, 22 drilled pier foundations, and a railroad and major highway crossing.

With assistance from fellow Quanta Services subsidiary company North Houston Pole Line (Irby is also a Quanta Services subsidiary (PWR:NYSE)), the project was successfully delivered to LCRA in January 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. 

 

Harwood-Waelder 69kV Transmission Line Upgrade Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Type: Transmission
Scope: Constructed 13.9 miles of 69kV energized transmission line and conductor upgrade.​
Location: Hardwood, Texas
Client: Lower Colorado River Authority

The Lower Colorado River Authority (“LCRA”) is a nonprofit public utility established to provide quality of life to Texans through water stewardship, energy, and community service.

In November 2017, LCRA contracted Irby to upgrade a 13.9 mile 69kV transmission line between its Harwood and Waelder substations to 138kV capable. The Irby scope included the replacement of 112 structures to complete the conductor upgrade and the installation of OPGW shield wire from Waelder to Flatonia substations.

The Irby upgrades (including foundations, tangents, and dead ends) were performed on energized lines with support from Quanta Energized Services and Probst Electric Company (Both Irby and Probst are Quanta Services companies (PWR:NYSE)). Completed to schedule in May 2018, the project was delivered to budget and with zero lost time incidents.

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 Construction Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Type: Transmission
Scope: Constructed 68.3 miles of 500kV transmission line including 15 miles of construction through Everglade canal waterways.
Location: South East Florida

Client: NextEra Energy Resources

NextEra Energy Resources (a parent company of FPL) is a wholesale electricity supplier with a portfolio of facilities totaling more than 21,000MW of electric generating capacity in the United States and Canada. In January 2018, NextEra contracted Irby to construct 68.3 miles of 500kV transmission line (single circuit, triple bundled) between Palm Beach and Miami-Dade counties (Corbett and Sugar substations to Quarry substation) in support of a critical tie-in for the NextEra’s Florida grid.

The Irby scope includes site survey, clearing, construction of access roads and pads, pier foundations and anchor pile installation, and setting steel structure and deadends with approximately 15 miles of the construction right of way transversing protected Everglade canal waterways.

In observance of the projects environmental requirements Irby crews adapted novel technical solutions including the use of barges, concrete pump lines, and amphibious equipment.

Start Date: January 2018
Completion Date: May 2019

 

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

 

Palo Verde-Pinal West 500kV Transmission Line Construction Project

Palo Verde-Pinal West 500kV Transmission Line Construction Project

Palo Verde-Pinal West 500kV Transmission Line Construction Project

Type: Transmission
Scope: Constructed 52.4 miles of 500kV transmission line.
Location: Phoenix, Arizona
Client: Salt River Project

Irby was contracted by the Salt River Project Agricultural Improvement and Power District (“SRP”) to construct the Palo Verde to Pinal West 500kV transmission line in March of 2007. Serving six utility districts including the Salt River Project, this line consisted of 52.4 miles of single circuit triple bundle conductor (up to 1,400 MW capacity) on approximately 205 self-supporting lattice steel towers.

Foundation work for the project was performed by fellow Quanta Services subsidiary company Can-Fer Construction, and the helicopter leadline was performed by Air2, LLC. The project was successfully delivered in May of 2008.

Start Date: March 2007
Completion Date: May 2008

 

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