 Many improvements have been made to the existing Route 4 arterial . The Route 17 interchange in Paramus was rebuilt at a cost of $ 120 million in 1999 , replacing the 1932 cloverleaf interchange by adding several flyover ramps . In 2002 , construction was completed on a $ 32 million project that improved the interchange with Route 208 in Fair Lawn . This interchange saw improvements of the ramps and bridges , including the Route 208 bridge over Saddle River Road . 
