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Soapbox Derby

Gravity Powered and Spirit Driven!

The first annual Hidden Springs Soap Box Derby inspires family and friends to team up, demonstrate their creativity, technology and engineering skills and passion for competition!

You can register online or print the registration form below and mail it and fee to Hidden Springs Town Association, 5876 W. Hidden Springs Drive, Boise, ID 83714. 

Information and Rules

Registration Form


Race Day Schedule

Pre Tech Inspection       
Drivers Meeting 1:00 p.m. 12426 N 10th Avenue
First Race (Start Time) 1:30 p.m. Top of N 10th Avenue
Final Race (End Time) 4:00 p.m.  
Judging (Design & Engineering) 4:30 p.m. All cars to South Meadow Park by 4:30
Final Scores to be Tabulated 5:30 p.m.  
Winners Announced 7:00 p.m.  

How to Build a Soapbox Derby Car

Would you like to participate in the Soapbox Derby but having a difficult time with building a car?  Help has arrived.  John Ahrens has provided a step-by-step process on how to build a soapbox car.  Residents are able to view the original soapbox car on the patio of the Hidden Springs Town Association office.  Click Here for  directions on "How to Build a Soapbox Car".  Please don't hesitate to contact John Ahrens, 208-602-4589 or the HSTA office, 229-2323 with any questions.