SpaceX wants to build its largest rocket launch complex yet, spending $100 billion to make a spaceport for its plans to explore the Moon and Mars.

The company hopes to turn coastal wetlands in southern Louisiana into a “self-sustaining” spaceport that will allow it to build and launch Starship and AI satellites.

The 125,000-acre (50,585-hectare) site on Pecan Island, which SpaceX named Starbase Louisiana, is an ⁠expansion of the company’s Starship launch operations beyond South Texas and those planned for Florida as its next-generation rocket remains in late-stage development.

The company’s second Starbase campus will eventually launch thousands of Starship flights a year, SpaceX President Gwynne Shotwell said, reiterating its goals for an ambitious cadence contingent on solving steep engineering challenges and regulatory hurdles.

Construction will begin next year with the first Starship launch in 2029, SpaceX said. Shotwell detailed the plans near the proposed site in Louisiana’s Vermilion Parish at an event with Governor Jeff Landry and other senior state officials.

The “self-sustaining” ⁠spaceport envisioned by SpaceX will include its own methane production for propellant, power generation, deep-water shipping ​capabilities ⁠to transport Starships from Texas, vehicle processing facilities, and probably an airport, Shotwell said.

The marshland site is more than eight times the size of Manhattan. Shotwell said “very large portions” of the land will remain natural wetlands with no infrastructure, while an animated SpaceX video showed the area dotted with ⁠several launch pads surrounded by greenery.

The site had been at the center of a decade-long lawsuit against ExxonMobil brought by local parishes alleging the oil major’s ​coastal drilling ⁠and canal dredging contributed to the state’s wetland loss. The state ‌reached an agreement with Exxon to settle the lawsuit in June, prompting its dismissal the following month, a court order shows.

That cleared the way for SpaceX’s launch plans for the 18-mile (29-km) coastal strip, which the company had been discussing with the state since February, Louisiana Economic Development Secretary Susan Bourgeois said.

SpaceX has significantly expanded ‌its southern US footprint in recent years, having built Colossus AI data centers in Tennessee and ‌Mississippi and Starlink facilities in Austin, Texas. It is planning a chip plant in central Texas.

“This project means more than just steel, technology, and capital,” Landry said. “It represents jobs for our families. It represents momentum for our communities, and it represents protection for our coast.”

SpaceX said the Louisiana site will add more than 3,000 jobs to the region. The governor’s office said those jobs are expected to pay an average ⁠salary of $92,600, or 192% higher than the average wage in Vermilion Parish.

The launch site, which will be SpaceX’s fourth in the U.S., appears to replicate at a larger scale its widening footprint in South Texas, site of its first Starbase rocket campus. However, the Louisiana site will not have rocket production facilities.

Read More: SpaceX to build $100 billion ‘Starbase’ to head to Mars