MOON TOWNSHIP (KDKA) — Part of busy Route 51 in Moon Township shut down early Thursday morning after a landslide overnight.

The busy stretch, also known as McGovern Boulevard, is closed at the intersection of Flaugherty Run Road, between Purdy Road and Stoops Ferry Road.

(Photo Credit: KDKA Photojournalist Ian Smith)

(Photo Credit: KDKA Photojournalist Ian Smith)

Moon Township Police say the landslide is very large and is very active.

“We haven’t had one quite this large,” said Jonathan Moses, PennDOT’s District 11 geotechnical engineer.

It brought down power lines, knocking out service for more than 600 customers in Moon and Crescent Townships.

However, Duquesne Light was called to the scene, re-routed power and restored electricity to all customers around 7 a.m.

Peoples Gas also responded to the scene.

PennDOT says Route 51 will be closed until further notice and they will watch the landslide closely as rain is expected to fall over the next few days.

“We’ll certainly be watching through the weekend, into early next week, to make sure that nothing else is moving,” Moses said.

If there is no movement, the road could reopen next week.

WATCH: KDKA Has More On The Landslide In Moon Township

If there is movement, more dramatic efforts will be needed to stabilize the hillside before it’s safe to reopen the road.

Nearly 14,000 drivers are forced to detour every day because of the closure.

Geotechnical engineers are examining the slide to figure out the best way to fix the hillside and keep it from sliding any further. Power crews are in the process of moving lines to the other side of the street.

Stay with KDKA for the latest on this developing story.