Georgetown and Round Rock city leaders will celebrate the opening of the 1.2-mile Mays Street extension road project on Thursday. A ribbon cutting is scheduled for 2 p.m. on the new roadway at a road sign marking the Georgetown-Round Rock city limits, about a quarter-mile north of Bass Pro Drive, according to a news release from the city of Georgetown. Construction of the Mays Street extension began in October 2016 and was handled by Austin-based contractor C.C. Carlton Industry. The project extended Mays Street from Teravista Parkway and Bass Pro Drive in Round Rock to the intersection of Westinghouse and Rabbit Hill roads in Georgetown. The four-lane roadway provides a new north-south connection between Georgetown and Round Rock and is expected to bolster economic development in the southeastern portion of Georgetown city limits, including a proposed office project that could include up to 550,000 square feet of office space near the intersection of Mays Street and Westinghouse Road, according to the city’s news release. The $6.4 million project was a joint effort by the two cities, with Round Rock funding about 27 percent of the construction cost. The remaining portion was funding by the Georgetown Transportation Enhancement Corp., which promotes economic and community development through transportation improvements, according to the city. Williamson County is working on a separate extension of Mays Street north of Paloma Drive to Oakmont Drive in Round Rock. The project, which is less than one mile in length, will create a continuous roadway from Hesters Crossing Road in Round Rock to Westinghouse Road in Georgetown. Construction is anticipated to begin in early 2018, according to the county. Once complete, Oakmont Drive will be renamed and become part of Mays Street.