Route 146 is a highway in northern Missouri. Its eastern terminus is at Route 6 west of Trenton; its western terminus is at U.S. Highway 136 east of Bethany. Missouri Department of Transportation (also refered to as MoDot) is in charge of maintaining public roadways of Missouri. ... A mile is a unit of length, usually used to measure distance, in a number of different systems, including Imperial units, United States customary units and Norwegian/Swedish mil. ... km redirects here. ... Trenton is a city located in Grundy County, Missouri. ... Bethany is a city located in Harrison County, Missouri. ... Brimson is a village located in Grundy County, Missouri. ... Gilman City is a city located in Harrison County, Missouri. ... State highways in Missouri were first designated in 1922 and Missouris system was used (along with Wisconsins) as a plan for the entire U.S. Highway System which was created in 1926. ... Missouri Supplental Routes are officially designated as State Secondary Roads. They are roads within the state of Missouri designated with letters. ... Official language(s) English Capital Jefferson City Largest city Kansas City Largest metro area St Louis Metro[1] Area  Ranked 21st  - Total 69,709 sq mi (180,693 km²)  - Width 240 miles (385 km)  - Length 300 miles (480 km)  - % water 1. ... Route 6 is a highway in northern Missouri. ... Trenton is a city located in Grundy County, Missouri. ... U.S. Highway 136 is a spur of U.S. Highway 36. ... Bethany is a city located in Harrison County, Missouri. ...