Intragna, Switzerland, 1999-2000
- Strengthening of the two-span prestressed concrete box girder with four CFRP cables
- External cables inside the box girder in a polygonal path over the 69-m length of the bridge
- Cables accessible at any time for examination or replacement
- Corrosion-resistant strengthening solution
- Monitoring of the load in the pre-stressing CFRP cables. Very small relaxation and negligible long-term losses in the pre-stress force