In June 2024, Irby Construction broke ground on the Destin Resiliency and Rebuild Projects, an initiative designed to enhance the system’s reliability and capacity for Florida Power & Light (FPL). The job involved rerouting and upgrading Destin’s primary transmission line to increase ampacity and reinforce the grid in one of the Gulf region’s most critical corridors.

The scope included installing new large concrete poles and realigning the transmission path through a densely developed, high-traffic area. Given the job’s visibility and location, Irby implemented strategic night shifts and coordinated closely with local stakeholders, including business owners, to minimize disruptions. 

To avoid costly substation shutdowns, Irby partnered with MG Dyess, a Quanta Services sister company, to perform energized work. This approach eliminated the need for outages and ensured continuous power delivery throughout the construction period.

Extensive pre-construction planning with FPL and early outreach to the local community helped streamline execution. Night construction allowed the crews to stay on schedule without impacting daytime traffic.

Completed on time and under budget, with zero safety incidents, this job delivered significant system upgrades and addressed a long-standing infrastructure need, improving overall grid resiliency for FPL customers.

Start Date: June 2024
Completion Date: August 2025

VIEW PROJECT SHEET  |  SEE ALL PROJECTS  |  VIEW OTHER SERVICES

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

This project included construction of 8.3 miles of 115kV/69kV line on the Mosaic Mine property in order to reroute an existing line around a future mine site.

The scope of work included setting 67 concrete poles and pulling 6.4 miles of 230kV, with 1.9 miles of 69kV underbuild. Irby also removed 33 structures and 4.5 miles of wire as part of the re-route.

We partnered with fellow Quanta sister company MG Dyess to build a permanent road throughout the right of way and to mat wetlands.

Because road construction was underway at the same time as the T-line work, coordination between the two companies on site was essential to its success. In addition to weekly calls with MG Dyess, the ability to complete the project efficiently required communication and coordination at the field level. Irby and MG Dyess superintendents were key players in the project’s ultimate success.

Thanks to this highly effective collaborative relationship, the work was completed on time and on budget.

Start Date: October 2023
Completion Date: April 2024

VIEW PROJECT SHEET  |  SEE ALL PROJECTS  |  VIEW OTHER SERVICES

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

Southwestern Electric Power Co. (SWEPCO), an American Electric Power company, serves more than 543,000 customers in Northwest and Central Louisiana, Northeast Texas and the Texas Panhandle, and Western Arkansas. In October 2021, Irby Construction began a 25-mile rebuild of the Patterson to S. Nashville 138kV transmission line for SWEPCO. 

Located in the southwest corner of Arkansas, the project includes more than 240 structures that meander through marshy territory on Arkansas Heritage Commission property, U.S. Army Corp of Engineers land, and numerous wetland areas. 

This 138kV single circuit transmission project consists of three eight-mile sections and has planned outages so the Irby crew can perform pole work on de-energized lines. The first section is 8.8 miles long and consists of 79 structures. The second section is 8.3 miles with the replacement of 83 structures, and the final section is roughly 8.1 miles with 80 structures. The final line is scheduled to be in-service on November 30, 2023. 

To assist with overall access of the area, Irby has contracted with affiliate company MG Dyess to clear obstacles and tackle the challenging wetland conditions. For the more than 30 Irby crew members who are wrecking out and rebuilding the existing transmission line, MG Dyess is laying thousands of wood mats to access work areas. 

NorthStar Energy Services, another affiliate company, is providing support services by drilling and pouring foundations as well as drilling and setting bases for the direct embed structures. 

From creating entry and overcoming barriers to setting foundations and poles, these coordinated efforts allow Irby to work efficiently and effectively. Irby is exceeding expectations on this job and is committed to the absolute performance required to safely deliver this project on time and within budget. 

Start Date: October 2021
Scheduled Completion: In Progress

VIEW PROJECT SHEET  |  SEE ALL PROJECTS  |  VIEW OTHER SERVICES

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