Pennsylvania-based contractors scramble to close construction sites with enforcement set to start March 21 in effort to curb COVID-19. 

Construction in Illinois, Indiana, Ohio and Wisconsin is seen as essential infrastructure, so work continues on most sites in those states. Minnesota, Kentucky, Missouri and Kansas's orders broadly exempt outdoor activities. Michigan's order includes public works construction as essential.

No COVID-19 shutdowns now are planned on projects for the city, TxDOT and Harris County agencies as long as contractors are willing to work, says the Houston Contractors Association.

There is no apparent damage from March 18th's magnitude 5.7 earthquake near Salt Lake City to City Creek Center's two-block-long retractable skylight or to the creek replica flowing beneath it.

Early morning quake causes minor damage to downtown buildings, closes the airport and cuts power to thousands in area.