| CLAVE | ADJUDICATARIO | PRES. LICITACION | PRES. ADJUDICACION | % BAJA | BOE |
| ON1/98 | ALTEC / PLODER /AZVI | 7.221.508.621 | 6.436.317.100 | 10,87 | 3/07/98 |
| ON2/98 | SACYR / OBRASCON / HUARTE | 7.357.943.410 | 6.920.881.571 | 5,94 | 17/08/98 |
| ON3/98 | FERROVIAL / AGROMAN | 10.585.537.180 | 10.058.423.437 | 4,98 | 17/08/98 |
| ON4/98 | NECSO | 14.588.394.301 | 13.330.039.495 | 8,63 | 17/08/98 |
| ON5/98 | FCC / COMSA | 17.378.383.301 | 16.325.632.663 | 6,06 | 17/08/98 |
| ON6/98 | DRAGADOS | 9.777.086.827 | 8.748.537.293 | 10,52 | 17/08/98 |
| ON7/98 | ACS | 11.857.536.597 | 10.961.118.579 | 7,56 | 17/08/98 |
| ON8/98 | VIAS | 4.756.777.295 | 4.635.007.174 | 2,56 | 17/08/98 |
| ON9/98 | CORSAN / CORVIAM | 4.128.385.330 | 3.875.728.148 | 6,12 | 23/04/99 |
| ON10/98 | |||||
| ON11/98 | DRAGADOS / TECSA | 16.073.275.563 | 15.557.323.417 | 3,21 | 23/12/98 |
| ON12/98 | AGROMAN / FERROVIAL | 14.525.882.102 | 13.782.447.461 | 5,12 | 23/12/98 |
| ON13/98 | C.PARAÑO / C.PIRENAICA / C. RUBAU / ALDESA CONSTRUCCIONES | 5.224.022.748 | 4.485.361.322 | 14,14 | 24/12/98 |
| ON14/98 | SACYR / OBRASCON-HUARTE / LAIN | 11.241.565.023 | 10.891.592.490 | 3,11 | 2/03/99 |
| ON15/98 | FCC | 9.348.583.171 | 8.707.856.861 | 6,85 | 23/04/99 |
| ON1/99 | CONSTRUCTORA HISPANICA / ALDESA | 4.473.421.274 | 4.222.909.683 | 5,60 | 24/05/99 |
| ON2/99 | NECSO | 20.232.473.063 | 19.275.477.086 | 4,73 | 10/06/99 |
| ON3/99 | FCC/COMSA | 14.922.785.850 | 13.848.321.778 | 7,20 | 13/07/99 |
| ON4/99 | ACS | 12.717.840.726 | 12.141.722.540 | 4,53 | 4/08/99 |
| ON5/99 | FERROVIAL / AGROMAN / COPROSA | 13.884.841.842 | 13.058.680.128 | 5,95 | 4/08/99 |
| ON6/99 | VIAS | 6.798.241.210 | 6.671.793.921 | 1,86 | 4/08/99 |
| ON7/99 | C.PARAÑO / C. RUBAU | 5.537.647.882 | 5.168.295.317 | 6,67 | 4/08/99 |
| 222.632.133.316 | 209.103.467.464 | 6,08 |