Bush and Gudgell Inc., a Salt Lake City engineering and land surveying company established in 1948, celebrated its 40th anniversary by opening a branch office in Page, Ariz., that will be its base for continuing work at Lake Powell for Del E. Webb Recreational Properties.

John Probasco, Bush and Gudgell president, said the company celebrated its 20th anniversary by opening a branch office in St. George to begin substantial involvement in the development of Bloomington.