Projects
Sanitary & Stormwater
Gonzalez Pump Station 19
Originally designed as a cast-in-place pump station, the terminal Pump Station for the City of Gonzales would have taken over 2 months to form up and install. Gainey’s worked the engineer to convert to precast and was able to save the contractor those two months because it was delivered and set in only 2 days!
Foxglove Fire Pump Station
Originally designed as a cast-in-place structure, the 22'-2" x 13'-4" x 10'-6" Foxglove Fire Pump Station was converted to a custom precast solution through collaboration between Gainey's and RLJ Construction, LLC. The project required engineering around incomplete plans, custom formwork, and a two-tank design for installation in a pond. As Rodney Jumonville of RLJ Construction said, "I think Gainey's can do it. If they can't, no one can."
Industrial Structures
Willow Glen Power Plant
"This structure was quite large weighing in at close to 145,000lbs, (including lid weight) 38ft long x 8ft wide x over 7ft tall. The top slab and bathtub base units for this structure were so large and heavy an eight(8) point pick had to be designed and properly rigged for each of the items to be safely lifted level, loaded, unloaded and set in place in the field. Working with Gainey’s Concrete was a snap because they totally understand the importance of lifter quantity, lifter placement, balancing loads and internal stresses."
Daryl Burns, PE
Director of Specialty Precast Services DELTA
Inertia Block
The Inertia Block Gainey's fabricated for Monsanto was precision personified. The block was designed to support a centrifuge with a custom-designed mounting bracket. This piece had to be manufactured to within a 3/32" tolerance and was the most precise structure Gainey's had made to that point.
14 x 14 Honeywell Structures
When Honeywell sets out to protect the environment, they do it right. This 14' x 14' secondary containment structure was designed and manufactured with 12" walls and custom sloped support beams. As if 12" of 6500PSI concrete wasn't enough for secondary containment, this structure was installed underground with 18" more concrete poured around its perimeter!
OxyChem
Updating a 50-year old tank containment system, while maintaining the system itself is a tall order. Creating and installing the new retaining wall was just one integral part of the project, and Gainey's performed. The entire project was completed 5-days ahead of schedule despite extreme weather, and other complications.
Wastewater Treatment
University of Louisiana at Lafayette 80,000 GPD
When the University of Louisiana at Lafayette needed an independent wastewater treatment system, one of the biggest challenges was meeting stringent ammonia discharge limits. Gainey's responded with a custom 80,000 GPD extended aeration system that biologically removes ammonia without chemical additives. Ammonia concentrations dropped from 57 mg/L to 0.4 mg/L, proving that even high-strength wastewater can be treated effectively with the right design.
Goodbee Regional 100,000 GPD WWTP
St Tammany challenged the team to think bigger. The Goodbee Regional Wastewater Treatment Plant features 25,000-gallon precast treatment tanks, five times larger than our standard designs, engineered to overcome tight site constraints, minimize community impact, and support future regional growth. The project demonstrates how collaborative engineering with a customer and innovative precast design can transform complex wastewater challenges into long-term infrastructure solutions.
Derby Meadows - Gainey's First Tennessee WWTP
When a 304-home residential development in Tennessee needed a smarter wastewater solution, Gainey's engineered a better approach. Instead of relying on hundreds of individual septic systems and a sprawling sand filter, our team designed and manufactured a centralized 120,000 GPD extended aeration wastewater treatment plant that reduced the treatment footprint by 75%, saved the developer millions in infrastructure costs, and delivered superior treatment performance. Through innovative value engineering, precise logistics, and high-quality precast construction, Derby Meadows demonstrates how modern wastewater infrastructure can maximize developable land, lower lifecycle costs, and create a more sustainable community for decades to come.
Custom Structures
Breasting Dolphin
The Mississippi River Port Breasting Dolphins was the project that kept Gainey’s on its toes! From casting in 8’2” steel plates with Nelson studs welded in a specific pattern, to flush-cast pipes, this project required great attention to detail. With frequently changing details, it also required updates to both designs and fabrication methods throughout the project. Never a company to shrink from a challenge, Gainey’s completed the project accurately and on time. The final touch on this project was receiving a 2016 NPCA CUP Award in the Underground Category.
UV Disinfection Unit
For the North Thibodaux Wastewater Treatment Plant, Gainey’s was tasked with designing and manufacturing some large municipal structures for their treatment train. One of which was a long and narrow UV Disinfection Channel Structure. With its substantial length and unique flumed design, this structure definitely came with its challenges. However, Gainey’s overcame and manufactured in three sections that were joined together with bolt pockets and an intricate joint recess. The contractor was so pleased with the fit and installation of the structure that he sent pictures of it in place and his thanks!
Airport Blast Fence Skids
Gainey's partnered with New Orleans Iron Works to manufacture custom precast blast fence skids for Louis Armstrong New Orleans International Airport. Designed to support jet blast deflectors, these heavy-duty foundations help redirect aircraft exhaust to protect personnel, equipment, and airport infrastructure. The project included 35 skids in the initial order, plus 8 additional units, with each skid measuring 6' wide × 9' long × 22" thick. Despite mid-production design changes and unique custom requirements, our team adapted quickly with innovative formwork, specialized finishing techniques, and collaborative problem-solving to deliver a high-quality solution on schedule.
Jordan Road Wharf
Gainey's manufactured 112 custom precast foundation panels for the Jordan Road Wharf project at the Port of New Orleans for Boh Bros. Construction. These panels serve as the foundation for a new poured-in-place dock.
Despite strict production requirements, including a 3,000 PSI stripping strength and 7-day moisture cure, our team adapted the production process to stay on schedule, showcasing our flexibility, problem-solving, and commitment to delivering quality custom precast solutions.