Iowa Highway 90

Iowa Highway 90 (Iowa 90) was a state highway in central Iowa. The highway was in service to traffic from 1932 through 1981 and took several forms over the years. It began as a spur route from Des Moines to Commerce, now part of West Des Moines. At its greatest extent, it extended from Atlantic to Newton along the historical routing of U.S. Highway 6 (US 6). From 1966 through 1981, the highway existed in its final form—from Interstate 80 (I-80) between Earlham and DeSoto to I-35 on the southern outskirts of West Des Moines.

Iowa Highway 90 marker

Iowa Highway 90

Iowa 90 prior to its decommissioning in red
Route information
Maintained by Iowa State Highway Commission
Length16.32 mi[1] (26.26 km)
Existed1932–1981
Major junctions
West end I-80 near Earlham
East end I-35 near West Des Moines
Location
CountryUnited States
StateIowa
Counties
Highway system
← Iowa 89→ Iowa 91

Route description

Iowa 90 began at an interchange with I-80 between Earlham and DeSoto. The Interstate Highway at this location ran in a south-southwest–to–north-northeast orientation. The Iowa 90 roadway curved northward at the interchange and continued as County Road P58 (CR P58). The highway straightened out and headed due east and intersected US 169 about one mile (1.6 km) south of DeSoto. Just before this intersection it passed over a line of the Rock Island Railroad. It continued east along a section line until it met CR R16 on the southern edge of Van Meter. Prior to 1980, CR R16 was called Iowa 293. The highway eased slightly to the north, putting traffic on a north-northeasterly vector parallel to the Rock Island line. It crossed the Raccoon River just west of Booneville. It entered Polk County to the southwest of West Des Moines. The roadway curved around to cross to the north side of the railroad tracks at a perpendicular level crossing. From there, it continued a short distance to a cloverleaf interchange with I-35. The roadway continued into West Des Moines, and ultimately Des Moines, as Grand Avenue.[2][3]

Major intersections
CountyLocationmi[1]kmDestinationsNotes
DallasAdams Township0.000.00 I-80 – Des Moines, Council Bluffs
Adams–Van Meter
township line		3.505.63 US 169 – Adel, Winterset
Van Meter7.0111.28 CR R16 – Van MeterFormer Iowa 293
PolkWest Des Moines16.3226.26 I-35 – Des Moines, Kansas City
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. 1980 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1980. Retrieved June 20, 2021.
  2. Iowa Department of Transportation (1980). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. § E3. Retrieved June 20, 2021.
  3. Google (June 20, 2021). "Iowa Highway 90" (Map). Google Maps. Google. Retrieved June 20, 2021.
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