Highway 16 Alternate to Cheyenne River. 31-4-162 State Highway 42 from U.S. Highway 281 to Iowa. 31-4-163 State Highway 43 from Nebraska to U.S. Highway 18. 31-4-164 State Highway 44 from U.S. Highway 385 to Interstate Highway 29. 31-4-165 State Highway 45 from State Highway 44 to North Dakota. 31-4-166 State Highway 46 from U.S. Highway 18 to Iowa. 31-4-167 State Highway 47 from Nebraska to North Dakota. 31-4-168 State Highway 48 from Interstate Highway 29 to Iowa. 31-4-169 State Highway 49 from U.S. Highway 18 to State Highway 47. 31-4-170 State Highway 50 from State Highway 34 to Iowa. 31-4-171 State Highway 52 from State Highway 37 to U.S. Highway 81. 31-4-172 State Highway 53 from south of U.S. Highway 18 to Interstate Highway 90. 31-4-173 State Highway 63 from U.S. Highway 18 to North Dakota. 31-4-174 State Highway 65 from U.S. Highway 212 to North Dakota. 31-4-175 State Highway 71 from Nebraska to U.S. Highway 18 Bypass. 31-4-176 State Highway 73 from Nebraska to North Dakota. 31-4-177 State Highway 75 from State Highway 20 to North Dakota. 31-4-178 State Highway 79 from U.S. Highway 18 to North Dakota. 31-4-179 U.S. Highway 81 from Missouri River to Interstate Highway 29. 31-4-180 U.S. Highway 83 from Nebraska to North Dakota. 31-4-181 U.S. Highway 85 from Wyoming to North Dakota. 31-4-182 State Highway 87 from U.S. Highway 385 to U.S. Highway 16. 31-4-183 State Highway 89 from U.S. Highway 18 to State Highway 87. 31-4-184 Interstate Highway 90 from Wyoming to Minnesota. 31-4-185 Interstate Highway 90 Business Loops at Oacoma, Chamberlain, and Mitchell. 31-4-186 State Highway 101 from State Highway 22 to Gary. 31-4-187