The Montgomery County Planning Board is expected to approve a site plan that would expand the Walmart Supercenter at Milestone Center.

The company wants to expand its is 150,00 square feet facility in Germantown by about 10 percent, to 165,300 square feet, mostly the portion of the parking lot next to Best Buy, Patch reported in January.

The Planning board is expected to vote on the site plan Thursday, during its regular meeting in Silver Spring.

County transportation staff determined that Walmart’s entrances and traffic patterns would not need to change if the proposed expansion took place, according to documents submitted to the planning board.

But Walmart would have to pay $305,100 in order to mitigate potential traffic increases during peak travel hours, board documents state, Patch has reported.

The planning board estimates the expansion would add 60 full-time jobs and 40 part-time jobs.