Albany, N.Y -- Parts of Madison and New Scotland Avenues remain closed Thursday as crews continue to repair a sinkhole that opened up Wednesday.

Construction crews have worked to widen the hole, which they said goes about 20 feet deep. The hole opened up at the intersection of the two avenues, after a sewer line collapsed underneath. Traffic has been diverted through Washington Park.

Officials said along with fixing the hole, keeping workers safe is just as important.

"It’s a large excavation, safety first that's the key, safety is paramount so were going to be cautious and careful, and prudent," said  Albany Water Commissioner Joe Coffey.

Crews installed what is called a trench box to help prevent the sides of the hole from caving in while workers are down there.

Officials said the road will be closed for at least a few more days as they continue to work.