University records obtained data on the school trajectory of all students enrolled in the civil engineering degree from its inception in 1956 to 2006, forming a database with 3630 individual records. Applying the masculinity index, the gender distribution of income, discharge and qualification is analysed. In the period 1956-1961 no women entered the race, the first did it in 1962, only after eight years entered the second and it was until 1972 that the female income stabilised. Income masculinity rates are reduced from 180 men per woman in the quinquennium 1961-1965 to 3.9 men per woman in the five-year period 2001-2005. Similar behaviors present the masculinity indices of discharge and professional qualification. Women have higher rates than men in the egress/income and titration/income ratios, which points to a higher terminal efficiency in the female stratum.