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Control and supervision of construction works A-7 Mediterranean Motorway. Section Nerja – Almuñecar (La Herradura), (Spain)

General Directorate of Roads (Ministry of Development)

Nerja

PURPOSE OF THE WORKS

Among the control and supervision works performed, the following are emphasised:

  • Study and proposal of possible improvements of the detailed design, as well as revision of solutions proposed by the construction company. Preparation of amended and supplemental plans.
  • Verification of the proper definition and execution of the works, as well as preparation of follow-up reports on the construction process.
  • Review of the quality of the materials received and used in the project (laboratory)

MAIN CHARACTERISTICS OF THE WORKS

Length:   9,500 m

Planned speed:    100 km/h

Minimum ground plan radius.:   680 m

Min. transition curve ground plan (A):    248 m

Maximum gradient:     4 %

Min. parameter convex curves:     9,075 m

Min. parameter concave curves:    8,000 m

No. of carriageways:    2

No. of lanes x lane width:     2 x 3.5 m

Width of interior shoulder/berm:    1.0 m

Width of exterior shoulder/berm:    2.5 m

Width of central reservation:     variable m

Platform over structures:     12.20 m

Platform in tunnel:   12 m

Total investment:    151.6 million euros