Ryan Bushby, a grade setter for California-based Granite Construction, stays most weeknights at a hotel near his Bay Area job site. Hotel owners are lamenting a drop-off in corporate travel during the pandemic as finance, tech and other professionals spend less time on the road. But hoteliers are cheering the boom in travel by blue-collar workers. Construction crews, travel nurses, truckers and sales teams from small and medium-size businesses have packed hotels for much of the past three years.