(Camas, WA)  --  Police say a four-year-old child was critically hurt in a crash on the Camas Slough Bridge on State Route 14.  The Washington State Patrol says an infant was also injured in the wreck, but is reported to be in stable condition.  The four-vehicle crash took place around 3:30 yesterday afternoon just west of Camas.  Both directions of the bridge were blocked following the accident, but the scene was cleared by around seven p.m.