Tank systems maker DEL Corp. has started a $4.3 million, 40,000-square-foot expansion of the company’s manufacturing facility in Scott.

The expansion will create 90 direct jobs with an average annual salary of $62,600 plus benefits.

DEL, which already has 50 employees, designs and manufactures customized tank systems, along with solids-separation and dewatering equipment for customers around the globe. The company estimates the expansion will improve efficiency and increase production capacity more than 300 percent.

Completion is expected in March .

The expansion was announced Friday by DEL President Bob Kulbeth and Gov. Bobby Jindal.

Louisiana’s economic development department estimates the project will result in an additional 200 new indirect jobs. The company estimates 77 construction jobs will be required during the building phase.

“As we ramp up production from this new facility over the next 10 years, we intend to hire 22 professionals in engineering and design and 68 specialists, such as CNC operators, welders, electricians and equipment technicians, as well as sales and clerical support staff,” Kulbeth said.

Founded as Drilling Equipment of Lafayette in 1979, the company became DEL International Inc. in 1980, providing major drilling rig components for the oilfield drilling industry. Soon after, the company began expanding into the environmental services industry, providing mix tanks and shakers to a new client base, leading to the creation of DEL Tank & Filtration Systems. DEL Tank and DEL International merged in 1996 to be come DEL Corp.

To secure the project, the state offered DEL an incentive package that includes a $215,000 Modernization Tax Credit, to be claimed over five years, along with the services of the LED FastStart job-training program. The company also is expected to use the state’s Quality Jobs and Industrial Tax Exemption programs.