The consortium D3 Société de la déviation de Troissereux has signed a Public-Private Partnership contract with the Conseil Général de l'Oise (France), to develop the Troissereux bypass RD901 PPP ("RD901 Project").
The consortium formed for the Troissereux bypass includes Colas Nord-Picardie, DTP Terrassement and Bouygues TP Régions France (all Bouygues construction companies) with a 10 % equity stake, and LIRI (100% indirect subsidiary of HICL Infrastructure Company Limited) with a 90 % equity stake.
Slated to last 35 months, the work will be performed by a building consortium involving project leader Colas Nord-Picardie (34%), Bouygues TP Régions France (33%) and DTP Terrassement (33%).
Once the section has been opened up to traffic, maintenance, operation and major repairs and upgrades will be performed by Aximum, a Colas company, for a duration of 22 years.
The project will be carried out on finance, design, build, maintain and operate basis. This 22 year PPP contract is structured on an availability basis with payments from the Département de l'Oise.
The project involves the construction of a 7-km section of 2-lane road, 4 engineering structures as well as a 275-meter long cut-and-cover tunnel.