<P> I - 70 is concurrent with US - 24 from the Colorado state line until US - 24 splits at Levant and runs north of I - 70 . At Colby, I - 70 begins to turn southeast until it reaches Oakley, where US - 40 joins with I - 70 for a concurrent journey through most of the state . The route remains flat until it reaches the county line between Russell and Ellsworth counties, where the road begins to travese rolling hills . </P> <P> At Salina, Interstate 135 begins its journey southward toward Wichita, and I - 70 continues through Abilene and Junction City, where the road begins to run through the Flint Hills . </P> <P> In Topeka, I - 70 intersects a child route, I - 470, twice . The second time it is intersected, the Kansas Turnpike merges, making I - 70 into a toll road . This is one of only two sections of I - 70 that are tolled (the other is along the Pennsylvania Turnpike), with the maximum toll distance costing $17.50 as of 2016 . I - 70 carries this designation from Topeka to Bonner Springs . It is the eastern terminus of the turnpike, and from there to 18th Street and extending on to the Kansas eastern border, the highway is free . </P> <P> I - 70 enters Missouri via a main northern route on the Lewis and Clark Viaduct above the confluence of the Kansas River and Missouri River and a route designated "Alternate I - 70" which has signs for I - 70 as well as Interstate 670 just south of Kansas City main downtown area . </P>

How much is the toll on i-70 in kansas
find me the text answering this question