Firefighters on Tuesday evening were battling a grass fire along U.S. Highway 101 near the Marsh Road exit, north of Willow Road in Menlo Park.

At 5:41 p.m. on Aug. 22, the California Highway Patrol issued a severe traffic alert on northbound Highway 101. Two of the right lanes were blocked and motorists were advised to expect delays and to use alternate routes to avoid the area.

The fire was first reported at 5 p.m. and four fire engines were on the scene at around 5:40 p.m., according to FireDispatch.com.

All lanes on 101 were reopened by 6:15 p.m. according to 511.org and firefighters ended their response to the grass fire shortly before 6:30 p.m., according to information available on PulsePoint.