ABSTRACT: In this study, bearing capacity and settlement properties of the clay unit outcropping at foundation ofMersin City Sewerage Project site are calculated and the commonly used methods for the determinationof bearing capacity and the settlement properties were correlated. The information was used from 20boreholes opened in this context. Standart Penetration Tests (SPT) and Pressuremeter Tests (MPT) wereaccomplished in boreholes and a series of laboratory tests were carried out on disturbed and undisturbedsamples. The bearing capacity of the foundation was determined with pressuremeter, Terzaghi, Hansen,Meyerof, and Skempton methods. Initial and consolidation settlements were calculated in addition topressuremeter settlement calculations. Later, calculated bearing capacity and settlement values of clayunits from different methods were correlated. The results of the bearing capacity calculations of foundationclays give closer results with Terzaghi, Hansen, Meyerof and Pressuremeter methods but Skempton methodgives relatively low values due to the calculation with only cohesion parameters. Pressuremeter settlementvalues were the lowest results where initial and the consolidation settlement values were calculatedrelatively higher. Odeometer test is recommended for the litologic units which have long consolidationperiod. Care should be given for settlement calculations with the pressuremeter method.