More information from KDOT:
#KCTRAFFIC ALERT! EXPECT DELAYS! As of 12:30 pm TODAY, Monday, June 24, all lanes of southbound I-435 at Woodend Road (Wyandotte County) CLOSED due to overturned truck blocking all lanes. Southbound I-435 traffic is currently using shoulder to get around the blocked roadway.
Drivers should avoid the area and use alternate routes if at all possible until further notice. We will let you know when the roadway is reopened to all traffic.