Tower of Power

Celebrate National Engineers Week with Johns Hopkins University Whiting School of Engineering

Tower of Power 2023 will take place in-person.

Click on our 2023 Tower of Power Flyer for additional information.

A Tower of Power in a Half Hour

A Middle School National Engineering Week Challenge

The Johns Hopkins University’s Whiting School of Engineering celebrates National Engineers Week (February 19-25, 2023) by inviting schools to build a tower from spaghetti and marshmallows. The top five winning teams across all schools will be invited to JHU’s Tower of Power event to build their towers again and compete with undergraduate students, alumni, and faculty teams (optional).

Participate in next year’s event by joining our mailing list.

Email us at [email protected] if your school has questions about participating in the Tower of Power competition.

Intent to Participate Deadline: 11:59PM on January 20, 2023

Deadline for School Submissions: 11:59PM on February 5, 2023


  • Towers are to be built by at least one middle school student (3 team members max) using only:
    • one (1) 1 pound box of spaghetti
    • 2 bags of large marshmallows (30 per bag).
  • The construction time limit is a half hour.
  • Towers must be freestanding.
  • Multiple teams may compete within each school, but each middle school may submit only one winning entry to JHU.  Students who compete from home can only team up with middle school students or younger siblings.
  • An entry consists of two items:
    • A digital photograph of the team and its tower
      • Photo must show very top & base of the tower
      • Photo must include a measuring stick next to tower to verify height (in cm or inches)
    • A parent, guardian, or teacher-verified height (in cm or inches)


  • Each middle school entry will receive a certificate signed by the Assistant Dean for Engineering Educational Outreach.
  • The top five winning teams will be invited to JHU’s Tower of Power competition to build a tower and compete w/ undergraduate students, alumni, and faculty teams (optional) and will be recognized on the JHU Center for Educational Outreach website

Hints:  Triangles are rigid.  Structures using triangles tend to be strong.  Note all the triangular trusses in the picture.  Long lengths of spaghetti will bend.  It’s probably better to have several short sections rather than one long section.


Click here to see the results and photos from the 2023 Tower of Power event

Experiment! Design! Build!

2022 Photo Gallery

Hub article: Carbs, creativity, and competition.

2021 Photo Gallery

2020 Photo Gallery

2019 Photo Gallery

2018 Photo Gallery

Hub article: Engineers Week 2018 Homewood Campus Competition

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