Iowa 370 was a short route, just over three and a quarter miles (5.2 km) in length.[1] It began on the Bellevue Bridge where N-370 crossed the Missouri River. The highway cut through farmland shaped by the meandering river's course. Iowa 370 ended at exit 42 along I-29 / US 275.
History
Designated in 1953, Iowa 370 originally extended 5.5 miles (8.9 km) from Bellevue, Nebraska, to US 275. The eastern end of the route was in Pottawattamie County.[2] In the early 1980s, Iowa 370 was truncated at I-29. The segment in Mills County from I-29 to the Pottawattamie County line was inventoried as Iowa 935 until July 1, 2003.[3]
Upon completion and opening of the new US 34 bridge over the Missouri River, Iowa 370 was turned over to Mills County.[4]