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

AEP Oklahoma

Duke Energy

Port St. Joe to Callaway 230kV Rebuild

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

Florida Power & Light Underground Lateral Hardening

Florida Power & Light Underground Lateral Hardening

Bozeman Road Underground Distribution Project

Bozeman Road Underground Distribution Project

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

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

Northeast 138kV Substation Upgrade Project

Northeast 138kV Substation Upgrade Project

Colton Lane Substation Upgrade Project

Colton Lane Substation Upgrade Project

Gillespie Substation Upgrade Project

Gillespie Substation Upgrade Project

West Texas Substation Upgrade Project

West Texas Substation Upgrade Project

Canyon Substation Flood Remediation Project

Canyon Substation Flood Remediation Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Lampasas-San Saba 138kV Transmission Line Construction Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Harwood-Waelder 69kV Transmission Line Upgrade Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Corbett-Sugar-Quarry 500kV Transmission Line Construction Project

Hurricane Irma Emergency Power Restoration

Hurricane Irma Emergency Power Restoration

Hurricane Harvey Emergency Power Restoration

Hurricane Harvey Emergency Power Restoration

Palo Verde-Pinal West 500kV Transmission Line Construction Project

Palo Verde-Pinal West 500kV Transmission Line Construction Project

Mead-Phoenix 500kV Transmission Line Construction Project

Mead-Phoenix 500kV Transmission Line Construction Project

Comanche Solar 34.5/230kV Substation and Transmission Line Construction Project

Comanche Solar 34.5/230kV Substation and Transmission Line Construction Project

Marshall Ford-Lago Vista 138kV Transmission Line Construction Project

Marshall Ford-Lago Vista 138kV Transmission Line Construction Project

Eastern Alberta 500kV Transmission Line Construction Project

Eastern Alberta 500kV Transmission Line Construction Project

Lookout Substation Construction Project

Lookout Substation Construction Project

Brown-Grady 138kV Transmission Line Rebuild Project

Brown-Grady 138kV Transmission Line Rebuild Project

Ponderosa-Grimes 230kV Transmission Line Construction Project

Ponderosa-Grimes 230kV Transmission Line Construction Project

Lake Charles Transmission Line Construction Project

Lake Charles Transmission Line Construction Project

Hurricane Matthew Emergency Power Restoration

Hurricane Matthew Emergency Power Restoration

Valliant-Northwest Texarcana 345kV Transmission Line Construction Project

Valliant-Northwest Texarcana 345kV Transmission Line Construction Project

Gray-Allen Creek 345kV Transmission Line Construction Project

Gray-Allen Creek 345kV Transmission Line Construction Project

Lonoke Emergency Power Restoration

Lonoke Emergency Power Restoration

Grand River Dam Emergency Power Restoration

Grand River Dam Emergency Power Restoration

Pongsona Emergency Power Restoration

Pongsona Emergency Power Restoration

Nebraska Public Power District Emergency Power Restoration

Nebraska Public Power District Emergency Power Restoration

Hurricane Katrina Emergency Power Restoration

Hurricane Katrina Emergency Power Restoration

Burnt Church-Tradeport 115kV Transmission Line Construction Project

Burnt Church-Tradeport 115kV Transmission Line Construction Project

Imperial Irrigation District Construction and Maintenance Services

Imperial Irrigation District Construction and Maintenance Services

Ohio River Crossing 345kV Transmission Line Construction Project

Ohio River Crossing 345kV Transmission Line Construction Project

Eliot Substation Construction Project

Eliot Substation Construction Project

Patent Gate 345/115kV Substation Construction Project

Patent Gate 345/115kV Substation Construction Project

The Southern Loop 345kV Transmission Line Construction Project

The Southern Loop 345kV Transmission Line Construction Project

Thomson-Vogtle 500kV Transmission Line Construction Project

Thomson-Vogtle 500kV Transmission Line Construction Project

Horse Hollow-Kendall 345kV Transmission Line Construction Project

Horse Hollow-Kendall 345kV Transmission Line Construction Project

Clear Springs-Hutto 345kV Transmission Line Construction Project

Clear Springs-Hutto 345kV Transmission Line Construction Project

Thomas-Warthen 500kV Transmission Line Construction Project

Thomas-Warthen 500kV Transmission Line Construction Project

CREZ 345kV Transmission Line Construction Projects

CREZ 345kV Transmission Line Construction Projects

Maine Power Reliability Program

Maine Power Reliability Program