INTERSTATE/BELTLINE: The ramp from NB I-39/90 to WB Beltline will be CLOSED overnight.Posted September 22, 2014 by Madtown Traffic & filed under Construction Blog.The ramp from NB (WB) I-39/90 ramp to the WB Beltline will be CLOSED between 9pm-5am every night Mon-Thurs (Sept 22-25).There will be a signed detour route using Hwy 30 to Stoughton Rd (Hwy 51) to the Beltline.