Ironman Triathlon Traffic Impacts

Several streets in and around downtown will be closed for the 2019 Ironman Wisconsin Triathlon on Sunday, September 8. Like previous years, the race consists of swimming in Lake Monona, bicycling throughout Dane County and running in the downtown/campus area. The race starts at 6:40 a.m. at Law Park with the swim start. City of Madison road closures for the bicycling portion last from approximately 7:30 a.m. until approximately 5:30 p.m. Road closures for the run portion last from noon until approximately midnight. All Metro Transit routes will experience significant detouring downtown. Please expect delays.
 
Ironman course maps are available here.
 
A map of downtown street closures and suggested alternate traffic routes is available here.
 
Metro Transit detours are available here.