A broken window at Pulrose Power Station means the road running past it will close this lunchtime.
Last night, a pane of glass shattered on the top part of the building and police closed Pulrose Road as glass fell onto the pavement below.
The Manx Utilities Authority says it's trying to discover why the high-quality pane failed.
A clean-up to clear the debris will take place today, and the road will shut from 1.15pm.
Weather warning for storm Dave this weekend
Roads to close for music festival this weekend
How long do mental health patients stay in Manannan Court?
Could you take over this former restaurant?
Framework of new Sea Services Agreement ready, says minister
Attorney General says he's stepping down
Road closures in two towns for running event this week
Six weekend ferry crossings could face disruption