Popsicle Bridges
The Challenge

Attention aspiring engineers! The state of
Michigan needs your help. The Mackinaw
Bridge is beginning to deteriorate and a new
bridge must be built. Governor Granholm wants
the most qualified team of builders to oversee
the design and construction of the new bridge.
Governor Granholm has issued a challenge to
find the best bridge designers this country has
to offer.
The Problem

You and a partner must make a bridge out
of popsicle sticks and glue.

The bridge must be able to span a 16 inch
gap.

The bridge must be able to hold the most
amount of weight possible.
Rules

1. The bridge can only be made out of 120 popsicle sticks and
white glue.

2. The bridge can be no longer than 20 inches.

3. The bridge must use trusses to give support and rigidity.

4. The bridge must have two sides, a top and a bottom.

5. The bridge must be at least 4 inches tall and at least 4 inches
wide.

6. Popsicle sticks can overlap up to 2 ¼ inches.
Rubric

The bridges will be graded using a rubric.
Testing

Bridges will be tested until failure.

Each bridge will be loaded at the center using a
chain and weight system or bridge tester
depending on the semester

The bridge must be able to accommodate the
testing apparatus.
Grading Items

1. Most weight held

2. Most efficient bridge

3. Most aesthetically appealing bridge
Schedule



Time is of the essence!
Your group must fill out a daily log (every
day) to keep on track.
Everyday I will post on the screen “What
you want to accomplish”
Examples
Examples
Examples
Examples
Examples
Examples
Where do you start?



The web site links to a file titled “Bridge
Packet”
This is your starting point!
Do not jump in and start designing your
bridge without completing the packet first!