The very weak absorption continuum of CO₂ is studied by Cavity Ring Down Spectroscopy in three 20 cm⁻¹ wide spectral intervals near the centre of the 1.74 µm window (5693 − 5795 cm⁻¹). For each spectral interval, a set of room temperature spectra is recorded at pressures between 0 and 10 bar thanks to a high pressure CRDS spectrometer. The absorption continuum is retrieved after subtraction of the contributions due to Rayleigh scattering and to local lines of CO₂ and water (present as an impurity in the sample) from the measured extinction. Due to some deficiencies of the CO₂ HITRAN2012 line list, a composite line list had to be built on the basis of the Ames calculated line list with line positions adjusted according to the Carbon Dioxide Spectroscopic Databank and self-broadening and pressure shift coefficients calculated with the Complex Robert Bonamy method. The local line contribution of the CO₂ monomer is calculated using this list and a Voigt profile truncated at ±25 cm⁻¹ of the line centre. Line mixing effects were taken into account through the use of the impact and Energy Corrected Sudden approximations.