There's alternating traffic on Route 35 in Ridgefield this afternoon.  The traffic pattern will be in place until 3pm between the Fox Hill Condos entrance to the Ridgefield Rec Center.  Construction activity on Route 35 is scheduled Tuesday through Friday between 7am and 5pm near the Fox Hill Condos entrance and on the west side of Route 35 between the Rec Center Drive and 165 Danbury Road.  Ridgefield Police say minor traffic impacts are expected.  This is all because of an ongoing state Department of Transportation bridge replacement project.