Three Louisville post offices are under consideration for closure as the U.S. Postal Service looks for ways to cut costs. The Postal Service saw a more than $2-billion shortfall last fiscal year and is anticipating another $7-billion loss this fiscal year.Louisville-area spokesperson David Walton says post offices in Beechmont, Plainview and Buechel are being reviewed for possible closure.“We look at offices that we’re trying to consolidate," says Walton. "We factor in such things as if we would try to consolidate this office, what impact if would have on employees.”The post offices in question are small, don’t distribute or deliver mail, and have only two employees each. Those workers would be relocated if their post offices are closed.Another post office, in Valley Station, could be added to the list under consideration for closure. Walton says a decision is expected in October.