This document outlines a proposed study on establishing effective guidelines for sustainable infrastructure projects in Nigeria. The study would be conducted by Crown Agents over a 6 month period from November 2016 to May 2017. The study aims to develop a 'proof of concept' framework to improve infrastructure project design and implementation in Nigeria. It would analyze challenges to infrastructure development and provide recommendations to enhance private sector participation and sustainable funding models. The study risks and mitigation strategies are also outlined. Crown Agents has extensive experience conducting similar infrastructure studies and technical assistance projects in Africa.