NOVATO (CBS SF) — Authorities in Marin County confirmed late Friday morning that westbound lanes of Highway 37 were still shut down from flooding and could stay closed into the weekend.

The Marin County Sheriff posted on its official Twitter account earlier Friday that, after initially reporting that the highway would be completely closed, only the westbound lanes were shut down.

READ MORE: "Someone's Shooting Outside The Door": Video, Audio Recordings Reveal Frantic Moments Of Deadly VTA Shooting

The sheriff’s department later offered additional details, saying that the flooded area was under about a foot of water.

There were reports of heavy rain and even hail in the area Friday, adding to the challenges faced by Caltrans crews trying to reopen the roadway.

Issues started in the area Thursday morning when authorities discovered a levee along the state route between Highway 101 and Atherton Avenue was breached.

In the video shared by CHP water could be seen gushing beneath train tracks for Northern Pacific Railroad.

MORE NEWS: UPDATE: Fire Destroys 2 Pleasant Hill Homes; Firefighter Suffers Burns

At about 7:30 p.m. Thursday evening, CHP in Marin County announced that the right lane of westbound 37 had been closed due to flooding.