Monitoring and overseeing water infrastructures

SERVICES FOR TECHNICAL, ADMINISTRATIVE AND FINANCIAL VERIFICATION OF THE MONTEGRANDE DAM CONSTRUCTION - MULTIPLE PROJECT- PHASE III

DOMINICAN REPUBLIC

The project is consigned by National Institute of Hydraulic Resources (INDRHI) and is structured in three phases. The first two phases have already been executed. This third phase, financed by CABEI, consists of the construction of the Montegrande dam, with 380 million cubic metres of water, whose main objectives are to control floods, provide water for home use and agricultural irrigation as well as the generation of energy at a later stage, or the development of aquaculture and tourism activities.

AIRTIFICIAL INFRASTRUCTURES, as the Verification Firm, advises and reports to CABEI on the execution of the project and contributes to the verification of compliance with the contractual commitments made by the borrower with the Bank to facilitate the process of disbursements under the loan. It also provides a comprehensive analysis of the problems encountered in the project and proposes alternative solutions to safeguard CABEI’s interests.

Dam typology: Loose materials
Dam height: 55 m
Reservoir volume: 380 Hm3

Translated with www.DeepL.com/Translator (free version)

PROJECT MANAGEMENT FOR THE DETAILED DESIGN, CONSTRUCTION WORKS AND INSTALLATION OF EQUIPMENT FOR THE OPTIMISATION AND EXPANSION OF THE EL SALITRE WASTEWATER TREATMENT PLANT.

COLOMBIA

The Salitre Wastewater Treatment Plant is located in the northwest of the city of Bogotá. It has a Chemically Assisted Primary Treatment for an average flow of 4 m3/s. According to the Bogota Sewerage Master Plan, the El Salitre Plant needs to be expanded and optimised to an average flow of 7.1 m3/s.

New average design flow is increased to 7.1 m3/s with a peak hourly flow during dry season of 14 m3/s and a maximum flow during the rainy season of 26 m3/s.

Population of Bogotá 8,081 x 106 inhabitants

CONSULTANCY AND ASSISTANCE TO THE PROJECT MANAGEMENT OF THE NEW ÁGUILAS / GUADALENTÍN DESALINATION PLANT.

MURCIA - SPAIN

Supervision, control and monitoring of the construction of the desalination plant and pipelines. The following works are supervised:

Construction of the new desalination plant with a capacity of 60 hm3 /year.
Construction of the inlet of the new plant, which will also have sufficient capacity to supply raw water to the desalination plant of the Comunidad de Regantes del Campo de Cartagena, and obtain a production of 8.4 hm3 /year.
Submarine outfall for reject water.
Pumping stations and pipe network to distribute the water.

TECHNICAL, ADMINISTRATIVE AND FINANCIAL AUDITING OF WATER SUPPLY AND BASIC SANITATION WORKS. ZONE 1: CARIBBEAN COAST

COLOMBIA

The contract has included the control and verification of compliance with all technical, administrative and financial activities, as well as the standards and specifications of the contracts signed with the PATRIMONIO AUTÓNOMO FIDEICOMISO – ASISTENCIA TÉCNICA FINDETER, administered by Fiduciaria Bogotá S.A. for the supply, aqueduct, sewerage and wastewater treatment works in the municipalities: San Juan del Cesar, Guajira: 25,587 inhabitants. Santa Marta. 454,860 inhabitants. Sahagún: 137,527 inhabitants. Ocaña: 98,229 inhabitants. and Sincelejo: 279,031 inhabitants.

SUPERVISION FOR THE CONSTRUCTION PROJECT OF THE MULTIPROPOSITE DRINKING WATER AND IRRIGATION PROJECT FOR THE MUNICIPALITIES OF BATALLAS, PUCARANI AND EL ALTO.

BOLIVIA

The objective of the project is to expand the drinking water supply system to the metropolitan area of the city of El Alto, and to incorporate new water resources and improve the use of and access to water for irrigation in the traditional systems, through the implementation of improved water conduction and distribution infrastructure.

Among others, the works of the New Khotia Khota Dam, Taypichaca Dam, Milluni Bajo DWTP, Tupac Katari irrigation systems, Khara Khota-Suriquiña, Taypichaca-Suriquiña and Palcoco Taypichaca are being supervised.

The population of the affected municipalities is: Batallas: 2,000 inhabitants. Pucarani: 29,379 inhabitants. El Alto: 842,378 inhabitants.

SUPERVISION OF THE EXTENSION AND IMPROVEMENT OF THE DRINKING WATER AND SEWERAGE SYSTEM, PACHACUTEC PROJECT - STAGE 3 .

PERU

The project consists of the supervision of the construction works and the subsequent commissioning of the wastewater treatment plant and the submarine outfall to discharge the effluent from the WWTP into the sea, as part of the Pachacutec macro project. The site of the works is located in the lower part of the Pachacutec settlement, in the sublot called Quique III-A in the district of Ventanilla, province of Callao. The new Pachacutec treatment plant is located next to the Ventanilla WWTP (oxidation ponds) currently in operation.

The average flow in the horizon year (20 years) is 37,615.10 m3/day and the hourly peak flow will be 2,821.675 m3/h. The population is about 188,000 inhabitants (280,000 h-eq).

PROJECT MANAGEMENT AND ADDENDUM NO. 1 OF THE SEGARRA-GARRIGUES CANAL. SECTION IV FROM PK 41+530 AL 62+530

SPAIN

The main works carried out are:

• Technical control of the works
• Daily supervision of the development of the works
• Measurements and certifications
• Monthly report on the progress of the works
• Drawing up the final works project (As-Built).
• The length of the works section (section IV): 21 km and the flow rate 20 and 15 m³/s.

CONTROL Y VIGILANCIA DE LAS OBRAS DE LA PRESA DE IRUEÑA (SALAMANCA).

ESPAÑA

The activities carried out were:
Qualitative and quantitative control, for the inspection and monitoring of the works contemplated in the construction project; quality control of the materials used in the execution of each and every one of the work units; quantitative control of the different work units; preparation of the corresponding Work Settlement; and environmental monitoring of the works.

The dam is an arch-gravity dam, with a maximum height above foundations of 75.0 m and a length of 418 m at the crest.

OVERSEEING THE DESIGN AND CONSTRUCTION OF AN IRRIGATION SYSTEM IN THE MUNICIPALITY OF EL PAISNAL.

EL SALVADOR

• Supervise the development of the technical studies, detailed engineering, final design of the Works proposed by the Contractor.
• Supervise the construction of the designed works, including the development of the completion tests; likewise, cover all technical, economic, financial, social, environmental, legal and sustainability control tasks.

Works to be supervised:

Irrigation system infrastructure.
Surface area = 1300 ha
Minimum surface area Registered area = 3 ha
Average service coverage density of at least 12 metres/hectare.
Average pressure of at least 50 m.c.a. at each connection point of each productive plot, to guarantee the necessary pressure to irrigate all areas of the plots under any technology.
Catchment works, conduction, distribution, treatment works, measuring and control installations, works of art (aqueducts, falls, rapids, siphons, culverts, etc.), reservoirs, minor damming works, drainage works, electrical transmission lines, etc…
Photovoltaic Plant

OVERSEEING THE CONSTRUCTION OF THE LA PAZ DAM (HAMPATURI ALTO)

BOLIVIA

Consulting services for overseeing the “CONSTRUCTION OF THE LA PAZ DAM (HAMPATURI ALTO)”, which involved overseeing the project, monitoring the technical, environmental, and financial aspects, and managing technical aspects in order to ensure the work was performed and completed successfully. For such purposes, this will also involve becoming fully acquainted with the comprehensive technical, economic, social, and environmental project once the service contract is awarded. In addition, the recommendations for the project were implemented and other measures were proposed, which optimized the use of allocated recourses without affecting the purpose or quality of the project.

The water in the reservoir will have a volume of 6 Hm3 and the absolute height of the dam associated with the storage volume of the reservoir is 4,350 MASL (maximum pool level).
Height of 37 meters
The dam crest is 217 meters long at a height of 4,352 MASL.
The water runs to the valve house through a steel pipe with a nominal diameter of 1000 mm.
The body of the dam is made up of 14 blocks of various shapes
The maximum water flow was calculated using criteria developed by the SCS (Soil Conversation Service), and the result was 35.3 m3/s for a return period of 10,000 years.
The spillway is rectangular-shaped and 15 meters wide.

CONSULTANCY AND TECHNICAL ASSISTANCE TO THE WORKS MANAGEMENT OF THE SEAWATER DESALINATION PLANT (NORTH AND SOUTH SECTORS) IN CAMPO DE CARTAGENA. (VALDELENTISCO)

SPAIN

Control and supervision of the execution of the Valdelentisco desalination plant works. Desalination plant, pipelines to the coast, seawater pumping, and underwater intake and discharge pipelines.

Support in administrative tasks: expropriations, processing of FEDER funds, discharge authorisations, occupation of maritime-terrestrial public domain, etc.

Control of civil works specifications and industrial equipment during construction (works supervision).

Technical assistance during the start-up of the plant: conversion analysis, yields, product water quality, etc.

Daily production: 140,000 m3.
Production system: Reverse Osmosis.
Plant conversion: 50 %.
Water destination: drinking and irrigation water.
Production of the plant: 70 Hm3/year – ÁGUILAS and
27 Hm3/year (extendable to 70 Hm3/year) – VALDELENTISCO
Financement: ACUAMED.
Total investment: Águilas – 267.200.992 €; Valdelentisco – 76.388.264 €.