The Coastal Climate Resilient Infrastructure Project (CCRIP) is a $150 million rural infrastructure project which was implemented in 12 districts of Bangladesh since 2013, and is due to be completed by the end of 2019. The project is funded by IFAD, the ADB, KfW of Germany, and the Government of Bangladesh. The project aims to improve the connectivity of farms and households in the face of climatic shocks, focusing on one of the most shock-prone areas of one of the most shock-prone countries in the world. The main component of the project is the construction of improved markets and market connecting roads, that are designed to remain useable during the monsoon season. This is expected to improve sales of on-farm produce, along with access to inputs as well as opportunities for off-farm income generation, leading to increased productivity and income. The project also aims to improve women's empowerment by employing Labour Contracting Societies (LCS), consisting mainly of destitute women, to carry out some of the construction work. This impact assessment focuses on the activities funded by IFAD, which includes the strengthening of markets and roads at the community and village levels. Using data from an in-depth household questionnaire covering 3,000 treatment and control households, combined with extensive qualitative interviews, we analyse the project's impact on a range of impact indicators relating to income; crop, fish and livestock production and sales; assets, food security and education; financial inclusion; and women's empowerment. We assess impact on the whole sample, as well as for a range of sub-groups, including by geographic location, location within the market catchment area, and by livelihood activity, integrating findings from the qualitative data to help to explain the mechanisms that shaped the project's impact. Regarding on-farm activities, we find that, despite a lack of impact on productivity, income from selling crops and fish increased significantly (by 104 and 50 per cent, respectively). However, we do not find a similar increase in income from the sale of livestock and livestock products. The lack of impact on productivity was seemingly caused by persisting issues with accessing high-quality inputs during the monsoon season, as well as households having limited capital to purchase these inputs. Despite this, the project increased the amount of produce that was sold, the amount that was sold at a market rather than from home or the farm gate, and increased the likelihood of growing cash crops, leading to the large increase in on-farm income. As well as improving on-farm income, the project also increased income from wage labour, which together produced a positive impact on total income of 11 per cent, along with a four per cent reduction in poverty. This increased prosperity was also reflected in reduced food insecurity and increased ownership of households assets.