Missouri State Route 273 runs north-south through Northwestern Platte County and then east-west in the central portion of the county. MO St Rt 273 passes through the following towns in Platte County. Bean Lake Iatan MO St Rt 273 is multi-plexed in Platte County. Missouri State Route 45, from the Buchanan/Platte County Line to near Beverly. Missouri State Route 371, from near Tracy to near Camden Point. MO St Rt 273 intersects the following highways in Platte County. Missouri Secondary State Route H, near Weston. Missouri Secondary State Route JJ, near Weston. Missouri State Route 45, near Beverly. Missouri Secondary State Route JJ, near Beverly. Missouri State Route 92, near Tracy. Missouri State Route 371, near Tracy. Missouri State Route 371, near Camden Point. Interstate 29, near Camden Point. U.S Rt. 71, near Camden Point.
