Quay walls are often designed with Finite Element models (FE models) to take into account the complex soil-structure interaction and highly non-linear soil behaviour. These are complex models that rely on many input parameters that have uncertainties. Nowadays, new quay walls are often equipped with sensors that collect information about the behaviour of the quay wall. These quay walls are known as \textbf{smart} quay walls. The measurement data of smart quay walls could be used to validate FE models and reduce parameter uncertainties. This could lead to an optimisation of the functionality of the quay walls. By means of a case study this thesis determines if measurement data obtained during the construction process has the potential to optimise the functionality of smart quay walls. The case used is the HES Hartel Tank Terminal (HHTT-quay), which is a smart quay wall in the port of Rotterdam. The HHTT-quay consists of sections with and without a relieving platform, both are considered in this thesis. In this thesis the functionality of a quay wall refers to the retaining or bearing functionality. Therefore, an optimisation of the functionality could consist of an optimisation in the retaining height or the surface loads. The case study used in this thesis shows that measurement data obtained during the construction process already provides important information that can be used to optimise the functionality of the quay wall. This indicates that for smart quay walls the construction process can act as a load test and this could reduce the necessity to perform a load test during the service life.