▁Wisconsin ▁constructed ▁the ▁portion ▁from ▁Gen oa ▁City ▁to ▁El kh orn ▁in ▁the ▁ 1 9 7 0 s . ▁However , ▁before ▁additional ▁fre ew ay ▁could ▁be ▁built ▁towards ▁Mad ison , ▁Illinois ▁sh el ved ▁their ▁portion ▁of ▁the ▁project , ▁due ▁to ▁community ▁and ▁environmental ▁opposition ▁( see ▁F AP ▁ 4 2 0 ). ▁ ▁Major ▁inter sections ▁Washington ▁ ▁in ▁Aber de en ▁ ▁in ▁Grand ▁M ound . ▁The ▁high ways ▁travel ▁concurrent ly ▁to ▁south - s out heast ▁of ▁Nap av ine . ▁ ▁in ▁Y ak ima . ▁I - 8 2 / US   1 2 ▁travel ▁concurrent ly ▁to ▁south ▁of ▁West ▁Rich land . ▁US   1 2 / US   9 7 ▁travel ▁concurrent ly ▁to ▁south ▁of ▁Union ▁G ap . ▁ ▁south ▁of ▁West ▁Rich land . ▁I - 1 8 2 / US   1 2 ▁travel ▁concurrent ly ▁to ▁Pas co . ▁ ▁in ▁Pas co . ▁The ▁high ways ▁travel ▁concurrent ly ▁through ▁the ▁city . ▁ ▁south - s outh west ▁of ▁Wall ula ▁Id aho ▁ ▁in ▁Lew ist on . ▁The ▁high ways ▁travel ▁concurrent ly ▁to ▁north - n orth west ▁of ▁Lap w ai . ▁Mont ana ▁ ▁in ▁L olo . ▁The ▁high ways ▁travel ▁concurrent ly ▁to ▁Miss ou la . ▁ ▁in ▁Miss ou la . ▁The ▁high ways ▁travel ▁concurrent ly ▁to ▁G arrison . ▁ ▁in ▁Hel ena . ▁US   1 2