GTC Burnt Church-Tradeport 115kV Transmission Line

IID Master Service Agreement

Kentucky Utilities 345kV Ohio River Crossing

NU Eliot Switching Station – 345kV Switchyard

BEPC Patent Gate 345/115kV Substation

The Southern Loop – 345kV Transmission Line

GPC Thomson-Vogtle 500kV Transmission Line

NextEra Horse Hollow-Kendall 345kV Transmission Line

LCRA Clear Springs-Hutto 345kV Transmission Line

GTC Thomas-Warthen 500kV Transmission Line

CREZ 345kV Transmission Projects

Maine Power Reliability Program (MPRP)

CTT Gray to Allen Creek 345kV Transmission Line

AEP Valliant to Northwest 345kV Transmission Line

Entergy Ponderosa to Grimes 230kV Transmission Line

Entergy Lake Charles Transmission Project

ATCO Eastern Alberta Transmission Line

GP&L Lookout Substation—138kV

Sharyland Utilities Brown to Grady 138kV Transmission Line

Marshall Ford to Lago Vista 138kV Transmission Line

Comanche Solar Project 34.5/230kV Substation and Interconnection

Mead-Phoenix 500kV Transmission Line

Palo Verde to Pinal West 500kV Transmission Line

Hurricane Harvey

Hurricane Irma

Corbett–Sugar–Quarry 500kV Transmission Line

Hardwood to Waelder Energized Transmission

Lampasas to San Saba 138kV transmission line

Canyon Substation Flood Remediation

Lonestar Transmission Substation

Gillespie Substation

Colton Substation

Customer Alliances

Irby Construction Company has ongoing Service Contracts and Master Service Agreements with select client companies. We are closely aligned with these partner companies in our mission to deliver reliable power to their customers by expanding and maintaining their infrastructure with our workforce and management team. These relationships enable Irby to assist in the pre-planning, engineering, construction, and maintenance processes.

Featured Projects

Colton Substation

Colton Substation

Gillespie Substation

Gillespie Substation

Lonestar Transmission Substation

Lonestar Transmission Substation

Canyon Substation Flood Remediation

Canyon Substation Flood Remediation

Lampasas to San Saba 138kV Transmission Line

Lampasas to San Saba 138kV Transmission Line

Hardwood to Waelder Energized Transmission Project

Hardwood to Waelder Energized Transmission Project

Corbett-Sugar-Quarry 500kV Transmission Line

Corbett-Sugar-Quarry 500kV Transmission Line

Hurricane Irma

Hurricane Irma

Hurricane Harvey

Hurricane Harvey

Palo Verde to Pinal West 500kV Transmission Line

Palo Verde to Pinal West 500kV Transmission Line

Mead-Phoenix 500kV Transmission Line

Mead-Phoenix 500kV Transmission Line

Comanche Solar Project 34.5/230kV Substation and Interconnection

Comanche Solar Project 34.5/230kV Substation and Interconnection

Marshall Ford to Lago Vista 138kV Transmission Line

Marshall Ford to Lago Vista 138kV Transmission Line

ATCO Eastern Alberta Transmission Line

ATCO Eastern Alberta Transmission Line

Lookout Substation

Lookout Substation

Brown to Grady 138kV Transmission Line

Brown to Grady 138kV Transmission Line

Ponderosa to Grimes 230kV Transmission Line

Ponderosa to Grimes 230kV Transmission Line

Lake Charles 230/500kV Transmission Project

Lake Charles 230/500kV Transmission Project

Hurricane Matthew

Hurricane Matthew

Valliant to Northwest 345kV Transmission Line

Valliant to Northwest 345kV Transmission Line

Gray to Allen Creek 345kV Transmission Line

Gray to Allen Creek 345kV Transmission Line

Entergy Arkansas Storm–Lonoke, AK

Entergy Arkansas Storm–Lonoke, AK

Grand River Dam Authority Ice Storm

Grand River Dam Authority Ice Storm

Super Typhoon Pongsona, Guam

Super Typhoon Pongsona, Guam

Nebraska Public Power District Storm

Nebraska Public Power District Storm

Hurricane Katrina

Hurricane Katrina

Burnt Church-Tradeport 115kV Transmission Line

Burnt Church-Tradeport 115kV Transmission Line

IID Master Service Agreement

IID Master Service Agreement

Ohio River Crossing 345kV Transmission Line

Ohio River Crossing 345kV Transmission Line

Eliot Switching Station – 345kV Switchyard

Eliot Switching Station – 345kV Switchyard

Patent Gate 345/115kV Substation

Patent Gate 345/115kV Substation

The Southern Loop – 345kV Transmission Line

The Southern Loop – 345kV Transmission Line

Thomson-Vogtle 500kV Transmission Line

Thomson-Vogtle 500kV Transmission Line

Horse Hollow-Kendall 345kV Transmission Line

Horse Hollow-Kendall 345kV Transmission Line

Clear Springs-Hutto 345kV Transmission Line

Clear Springs-Hutto 345kV Transmission Line

Thomas-Warthen 500kV Transmission Line

Thomas-Warthen 500kV Transmission Line

CREZ 345kV Transmission Projects

CREZ 345kV Transmission Projects

Maine Power Reliability Program (MPRP)

Maine Power Reliability Program (MPRP)