October contracts for future construction in Salt Lake, Davis and Weber counties increased 63 percent from $49.6 million a year ago to $81 million, according to the F.W. Dodge Division of McGraw-Hill Inc.

George Christie, vice president and chief economist for Dodge, said nonresidential contracts in October increased 84 percent from $25.5 million in October 1989 to $46.9 million. Residential contracts for future construction increased 42 percent from $24.1 million to $34.1 million.In the first 10 months of 1990, contracts for future construction increased 32 percent from $537.3 million a year ago to $709.5 million. Nonresidential contracts increased 28 percent from $287.3 million to $366.3 million and residential contracts increased 37 percent from $250 million to $343.1 million.