Bridge Building

Purpose

Bridge Building splits participants into sub-teams that each build one half of a bridge in separate rooms. The halves must connect when brought together. The exercise powerfully reveals the cost of poor cross-team communication, unclear specifications, and assumption-making. It is an outstanding simulation of distributed team collaboration, API contracts, and integration challenges.

At a glance

• Group size: 8–30 participants (2–4 sub-teams)
• Duration: 45 minutes
• Difficulty: Intermediate to Advanced
• Facilitation style: Structured with separation rules
• Setting: Indoors; two or more separate rooms

How to run

1. Brief (5 min): Your teams will each build one half of a bridge. The halves must meet in the middle and support a toy car crossing. You have identical materials. You may send one ambassador between rooms every 5 minutes for 2-minute visits.
2. Split and build (30 min): Teams work in separate rooms. Enforce the ambassador rule strictly. Provide identical material kits.
3. Integration (5 min): Bring the halves together. Test the bridge. The toy car must cross without falling.
4. Debrief (5 min): What assumptions did each team make? What information did the ambassadors carry? What would you do differently? How does this mirror cross-team work in your organisation?

Materials needed

• Identical building kits per team: newspaper, tape, cardboard, scissors, straws, string
• A toy car for the bridge test
• Two separate rooms or screened areas
• Timer

Pitfalls & common mistakes

• Non-identical kits: Even slight differences introduce a confound. Prepare kits carefully.
• Uncontrolled communication: If teams text or shout through walls, the exercise loses its point. Enforce separation.
• No integration test: The magic moment is the join. Always bring the halves together even if time is tight.
• Ignoring the ambassador role: Coach ambassadors that they represent both teams and must be clear communicators.

Inclusion & accessibility

• Provide scissors and tools that work for left-handed and right-handed participants.
• Assign roles (builder, designer, ambassador, tester) so everyone has a meaningful contribution.
• Ensure separate rooms are equally accessible.

Variations

• No Ambassador: Teams get a written specification only. Tests documentation quality.
• Three-part Bridge: Three teams build thirds. Exponentially harder integration.
• Bridge Building with Budget: Each material has a cost. Teams must build within budget.

When NOT to use this

• When cross-team tensions are already high — a failed integration can reinforce blame rather than learning.
• With fewer than 8 participants, where the sub-team dynamic is too thin.
• When separate rooms are not available and the separation cannot be maintained.

Source & further reading

• Cain, J. and Jolliff, B. (1998). Teamwork and Teamplay. Kendall Hunt.
• Kaagan, S. (1999). Leadership Games. Sage Publications.