An in-sity monitoring program was implemented during construction of the spine tunnel of the Greater Cairo Wastewater Project. The test section was located at an area where the 5-m shielded tunnel was advancing under compressed air through alluvial Nile deposits. Soil displacements around the tunnel were measured during the tunnel advance using an array of magnetic multi-point extensometers and surface settlement points. Piezometers were also utilized to monitor the groundwater response at different distances from the tunnel centreline. This paper presents field measurements compiled from the instrumentation monitoring program. The general trends of ground and groundwater responses to tunneling under the encountered conditions are identified. The results are compared with available guidelines of prediction of soil settlement above shielded tunnels.