Based　on　a　nationwide　survey　and　deck　inspection　in　Michigan,　the　phenomenon　of　more　severe　corner　cracking　on　skewed　bridge　decks　was　commonly　observed.　A　series　of　FEA　by　DIANA　were　carried　out　to　identify　the　possible　causes　and　viable　cures　for　such　cracking.　Prior　to　the　FEA,　the　accuracy　of　FEM　modeling　was　calibrated　by　two　skew　bridge　decks　instrumented　using　temperature　and　strain　sensors　for　the　deck　concrete　and　the　ambient　environment.　Test　and　FEA　results　found　that　the　cracking　has　been　mainly　caused　by　thermal　and　shrinkage　stress,　and　that　possibly　propagated　and　worsened　by　repetitive　truck　wheel　loading.　According　to　current　Michigan　practice　of　skew　deck　design　and　construction,　additional　reinforcement　in　the　corner　areas　is　therefore　recommended　to　reduce　concrete　stresses.　Further　research　is　also　recommended　to　develop　solutions　using　optimal　combinations　of　ingredients　in　concrete　and　to　minimize　the　constraint　between　the　deck　and　the　supporting　superstructure.