KING OF PRUSSIA, PA (03/12/2010)(readMedia)-- Sunday's (March 14) six-hour closure on I-476 between the Mid-County and Lansdale Interchanges has been postponed due to rain and high winds in the forecast for this weekend. The contractors work to remove bridge beams on the bridge that carries Walton Road (SR 3012) over the Turnpike at milepost A21.00 in Plymouth Township, Montgomery County has been rescheduled for March 21, 2010.