BROCHURES Company Materials Brochure Click here to DOWNLOAD PDF. Printable Project Sheets Click here to DOWNLOAD PDF. Fact Sheet Click here to DOWNLOAD PDF. Video Archive Erickson S-64 Aircrane Helicopter Constructing 115kV Transmission Line Along I-95 in Coastal Georgia Special Measures Ensure Reliable Power and Protect Marsh GTC’s Dresden Heard County 500 kV Substation and Transmission Project Irby Construction History: It Takes Power Irby In Indonesia CONTACT HR DIRECT: Learn about current openings or contact HR directly by clicking here. FOLLOW US: FollowFollowFollowFollowFollow CONTACT US: 318 Old Highway 49 SouthRichland, Mississippi 39218-9449 Phone: 601-709-4729Email: firstname.lastname@example.org FACEBOOK FEED: Irby Construction Company 318 Old Hwy 49 SRichland, MS 39218 Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).