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Completion Year: 2009

Construction Budget: US$ 121 Millions

Contractor company: FCC

Relevant details:

Description: Storm Tank : 400,000 m3 capacity, in two sub-tanks. Dimensions of 170.00 meters wide and 255.00 meters long and perimeter executed by retaining walls of 1.00 meters thick and 19.35 meters high. Alveolar cell slab supported by piles of mesh 8.50 x8.50 and 4.00 x4.00 m footings bracing by girder brace. The system has five gates with cutwaters for filling each sub-tank with thick decanter and energy absorber. Spillway storm tank: Independent by-pass with a drainage line of 5 m width. Discharging the storm tank: 2 Pumping systems of 10.50 and 6.5 m3/s capacity. House of ventilation with three fans of 100,000 m3/h. Cleaning system: folding fusegates. Tank drainage inlet: three frames 5.00×3.20 meters. Bypass drainage system to collector south for small flows: frame of 2.50×2.00 meters.

Services performed:

Detailed design Project and Technical assistance to Principal Engineer during construction.

About Us

GINPROSA was founded as a company in October 1990 by a group of highly experienced professionals from all disciplines of Civil Engineering. The firm has a staff of highly qualified engineers ideally suited to all of the activities undertaken by the company.

The principal services provided by GINPROSA  are: the development of Feasibility Studies, Engineering Reports, Preliminary and Detail Design Projects, Quality Control, On-site consultancy and the Supervision of construction works within the following sectors: Transport, Roads & highways, Railroads, Structures, Buildings, Masterplanning and Development, Water Supply and Waste Water infrastructures.

GINPROSA is an independent company with no links to financial groups or contractors, with its capital stock shared amongst the professionals of the company.

 GINPROSA’s head office is situated in calle José Echegaray, no. 18, 28232 LAS ROZAS (MADRID).  The over 2,000 m2 of office space is completely equipped with the most modern technological means for the efficient and effective production of all the business activities undertaken by the company. GINPROSA also has various offices distributed all over Spain.

Oficina Central

C/José Echegaray 18

28232, Las Rozas de Madrid.

Madrid. España.

T. +34 917 994 900

F. +34 917 994 910

Estados Unidos

2102 Business Center Dr. Ste. 130

Irvine, CA 92612

T. (949) 253-4660

T. (949) 253-4616

F. (949) 752-9316



Calle 93B nº 17-42 Oficina 302

Edificio Classic Center I

Bogotá D.C. – Colombia

T. (+57)(1) 5307920

F. (+57)(1) 5307921


Cll. 33  78-141 piso 3º.

PBX    (+57) (4)    460 2320

Movil (+57)  321 885 2793