SAN FRANCISCO (KRON) — After several long years, the new Presidio Parkway is about to be open.

But first, crews have to shut Doyle Drive down for nearly 80-hours, and that all happens this weekend.

On Tuesday, officials provided a special tour of the project, and they gave details on what this weekend’s closure is all about.

“Well, there’s an enormous amount of work to do in order to open the new roadway, so right now, everybody is on a temporary detour,” project spokesman Molly Graham said. They need to remove that detour entirely and build up that roadway and build those connections. So, there’s about 79 hours of constant work that needs to happen.”

In total, there will be four tunnels, two southbound and two northbound once this area re-opens on Monday.

The Presidio Parkway, or as many know it as Doyle Drive, had to be tackled to make it safer so it could stand up to a major earthquake. Besides the tunnels, Graham said the project includes a network of on-and-offramps, including right the popular southbound exit from 19th Avenue that has been shut down for five years.

Drivers will be able to use a detour to get around the closure. Then, at 10 p.m. on July 9th, Doyle Drive will be completely closed down until 5 a.m. the following Monday. The closure will extend from the Marina to the intersection with Highway 1.