Many downtown streets will be closed on Saturday morning, April 29th for the Crazylegs Classic run/walk. 

Traffic will not be able to cross Wisconsin Avenue or State Street from 9:45 a.m. to 11:15 a.m.  Major streets affected include Gorham Street, Johnson Street and Dayton Street.  Through traffic should follow the traffic routes shown on this map:
https://www.cityofmadison.com/trafficEngineering/documents/Crazylegs-Traffic-Routes-Current.pdf

Several Metro Transit bus routes will be detoured. 

Routes 2, 4, 5, 6, 7, & 8 Detours: http://www.cityofmadison.com/metro/detours/crazylegs/index.cfm

Route 80 Detour:  http://www.cityofmadison.com/metro/detours/crazylegs/campus.cfm

Allow extra travel time if traveling downtown during this time.