Neighbor Ben posted on the Beacon Hill Mailing List today:
If you regularly travel through the 1900 block of S Waite you’ll need to find an alternate route for the next few days. There is a sewer main blockage on South Waite Street around halfway between 19th and 20th. Seattle Public Utilities is on the scene working to order to restore service tonight and have closed the street to through traffic. In addition some parking on the street is currently blocked off and will remain so during working hours between 7:00 am and 7:00 pm.
They expect to have a more permanent fix in place by Tuesday. The utilities crew will cover the excavation with a metal plate and open the road to traffic during off-hours and will pour a temporary asphalt patch once the fix is complete. They expect the road services crew to come in behind them within a month to delete the four concrete slabs affected by the work and pour some new ones.