Boise Ironman Traffic Changes

It's that time of year again!  Boise's Ironman 70.3 is back this Saturday and will affect traffic around the Treasure Valley.

This could be the end of an era for Boise Ironman 70.3, as the city has not yet re-signed the $50,000 contract to hold the race in the Treasure Valley in the future so if you've ever wanted to see the race, take advantage of a gorgeous weekend to see it!

Around 1,200 athletes will take on the 1.2 mile swim through Lucky Peak's Barclay Bay, 56 mile bike ride through east/southeast Boise and 13.1 mile run along the greenbelt before finishing in Julia Davis Park.  Of course that means road closures/delays/detours to keep the athletes safe.  There are fewer traffic changes this year, but here's the areas affected!

Capitol Blvd

• Capitol/Federal Way from Protest to University - CLOSED 1:30-6:30 PM
• University Drive to River Street - CLOSED 11 AM - 12 AM

Other Closures/Detours

• HW 21 from Lucky Peak to Warm Springs - DELAYS 10:30 AM - 12:30 PM
• HW 21 from Warm Springs to Technology Way - DETOUR through Grand Forrest 10:30 AM - 3:30 PM
• HW21 from Warm Technology Way to Diversion Dam - PILOT CAR 10:30 AM - 3:30 PM
• I-84 Interchange at Eisenman - CLOSED 10:40 AM - 3:30 PM
• South Eisenman from I-84 to Boise Factory Outlets - CLOSED 10:40 AM - 3:30 PM
• Gowen from South Eisenman to Pleasant Valley - CLOSED 10:50 AM - 2:45 PM
• Pleasant Valley from Gowen to Ten Mile Creek - CLOSED 11 AM - 2:45 PM
• Ten Mile Creek from Pleasant Valley to Hubbard - CLOSED 11:20 AM - 2:30 PM
• Warm Springs from HW 21 to East Junior High - DELAYS 12 - 3:34 PM