Gov. Kay Ivey will be in Huntsville Tuesday to break ground on a new $16 million aerospace manufacturing plant for Aerojet Rocketdyne. The plant is expected to employ a minimum of 750 people with an average salary of $79,560.

The 136,000-square-foot plant will be located in north Huntsville at 7800 Pulaski Pike in the North Huntsville Industrial Park. It will produce rocket engines using composites and additive manufacturing. Construction will begin in December.

Aerojet Rocketdyne is also building a separate $11 million headquarters in Huntsville's Cummings Research Park. Construction on that will begin in January. City officials say total employment at both facilities could reach 1,200 employees.

The groundbreaking will begin at 3 p.m. and include remarks from Ivey, Mayor Tommy Battle and Aeroject Rocketdyne CEO and President Eileen Drake.