sentences:  There are currently plans to revamp the I-55/Crump Boulevard Interchange.The current design (a cloverleaf interchange) causes northbound motorists, especially truck drivers, to slow down from 55 MPH to 25 MPH when going from the section they are on to the section passing over the Mississippi River.Prior to 2011, northbound traffic had to merge on a one-lane loop with a tight radius while traffic going from I-55 SB to Riverside Drive merged into traffic on another loop ramp.