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Several streets in and around downtown will be closed for the Ironman Triathlon on Sunday, September 9.   The race consists of swimming in Lake Monona, bicycling in Dane County, and running in the downtown/campus area.  The race starts at 6:40 a.m. and lasts until approximately midnight.  Police will maintain local access across the route only when possible during gaps in the runners/bicyclists.  Thru traffic driving across the route will not be permitted. 

Swim Route Closures:
There are no street closures for the swim route.

Bicycle Route Closures:
Closures for the bicycling portion last from about 7:30 a.m. until about 5:30 p.m.  The following closures will be in place within the city limits.  Please notice that this bicycle route is different from previous years due to flooding:

  • Right lane of northbound John Nolen Drive from E Lakeside St to Monona Terrace
  • Olin-Turville Ct
  • Capital City Path from Olin-Turville Ct to Nob Hill Rd (police maintain vehicle access to the hotels east of the path)
  • Westbound Nob Hill Rd from Capital City Path to E Badger Rd
  • E Badger Rd from Nob Hill Rd to Rimrock Rd
  • Right lane of northbound Rimrock Rd from E Badger Rd to Hwy MM (drivers will not be able to cross the route)

Run Route Closures:
Road closures for the run portion last from 11:00 a.m. until about midnight.  See downtown map for closures:

Course maps on the Ironman Wisconsin website:

Metro Transit detours:


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