Sharyland Utilities (“Sharyland”) is a Texas-based electric transmission utility providing wholesale energy within the Texas Interconnection (~24 million customers) as regulated by the Electric Reliability Council of Texas. In April 2016, Sharyland contracted Irby to rebuild 20.2 miles of 138kV transmission line near Martin County, West Texas.

As subcontractor to McCord Engineering (Sharyland’s nominated engineering firm), Irby’s scope included the tear-down and reconstruction of the existing 138kV transmission line, including concrete and steel poles, between Grady and Brown Substations. Five OPGW splice cans were installed along the route and construction also included four highway crossings.

The project was completed on time, to schedule, and with zero lost-time incidents in October 2016.

Start Date: April 2016
Completion Date: October 2016

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Entergy Texas (an Entergy Corporation subsidiary) provides power to over 450,000 customers in 27 Texas counties. In September 2015, Entergy contracted Irby affiliate company Dashiell Engineering (Irby and Dashiell are Quanta Services subsidiary companies (PWR:NYSE)) to construct 40 miles of 230kV transmission line including steel and concrete poles between Entergy’s Ponderosa and Grimes substations in southeast Texas.

Irby Construction contracted Auger Services to construct the foundations and Winco (also a Quanta Services subsidiary company) to pull lead line and help clip the shield wire via helicopter.

This project was successfully completed in April 2016.

Start Date: September 2015
Completion Date: April 2016

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Entergy Louisiana (an Entergy Corporation subsidiary) is a power provider serving over 1 million customers across 58 parishes in Louisiana. In October 2016, Entergy contracted Dashiell Engineering (a Quanta Services company (PWR:NYSE)) to reconstruct 15 miles of 230kV and 6.8 miles of 500kV transmission line near Lake Charles on a turn-key basis.

Irby (also a Quanta Services company) was subcontracted to Dashiell to rebuild the lines, including foundations, steel, and concrete poles. Irby was assisted by Auger Services for pole setting/foundations and WInco for helicopter wire operations. Irby also performed conductor stringing works (1 mile) across the Calcasieu River. The project was completed in February 2018 to schedule and without lost-time incident.

Start Date: October 2016
Completion Date: February 2018

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In April 2016, Irby Construction was awarded the contract for the construction of the Valliant to Northwest Texarkana Transmission Line project for AEP Southwestern Electric Power Company and AEP Oklahoma Transmission Company.

The project consisted of the installation of 43.5 miles of 345kV single steel pole transmission line on anchor-bolted foundations. Irby was supported by Erickson Air Crane and Winco for helicopter pole erection work scopes (Irby and Winco are Quanta Services subsidiary companies (PWR:NYSE)). The project was completed on time and with zero lost time incidents in January 2017.

Start Date: April 2016
Completion Date: January 2017

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