Eptisa supervises construction works for the second phase of rehabilitation and extension of sewerage network in Prilep in Republic of Macedonia

The project will last 30 months and include the extension and rehabilitation of 43 km of the existing sewerage network

March 14 2016

Eptisa returns to Prilep for the continuation of the EU funded project "Technical assistance for preparation of investment project for wastewater collection and treatment in Prilep". Eptisa had successfully implemented the first phase of the project in 2009-2010, which secured an amount of approximately 26 Million Euros in investments for Wastewater and Wastewater Treatment plant in Prilep. It was also the first IPA project of the kind in the Republic of Macedonia.

The investments for wastewater were divided into two phases. The first one corresponding to the extension and rehabilitation of 23km of sewerage network in Prilep finalized in 2015.

The second phase of the project - Construction works for rehabilitation and extension of sewerage network in Prilep - will provide for the extension and reconstruction of 44km of sewerage (7Mill investments) and be supervised by Eptisa in accordance with FIDIC Red Book Conditions of Contract for Construction, First Edition 1999. The works commenced in November 2015 and are financed under the IPA programme.

The overall objective of the project is to improve environmental protection through investments in environmental infrastructure, and create conditions for environment friendly sustainable development, with prevention of surface and underground waters pollution.

Within this contract, Eptisa acts as the Engineer in accordance with FIDIC Conditions of Contract (Red Book) during the extension and rehabilitation of 43 km of the existing sewerage network, which will take place in the next 30 months.

The existing drainage network in Prilep was designed in 1973 as a separate system with separate foul and storm drainage. Construction of the drainage and foul sewerage networks was carried out in the 1970’s and 1980’s and covers approximately 80% of the town.

There are 17,561 known property connections for domestic, industrial and institutional customers connecting 60,105 out of 75,131 inhabitants to the municipal wastewater system corresponding to service coverage of 80%.

The un-served population amounts around 15,000 inhabitants and is predominantly located in the unsewered districts of the town or is or in the peripheral areas of the town. About 5% of the residents are in areas where central sewerage system connection is not feasible compared to organized collection and discharge of the retained septic sludge from the on-lot utilities.

In addition to the municipal sewer networks, there is a substantial number of makeshift combined sewers in the periphery of the town that were installed by individual householders. These unregistered sewers are not charted for services and partly not connected to the municipal sewer system. And between 40 - 60% of the properties have a single connection pipe discharging both domestic wastewater and storm water from roofs and yards to the wastewater sewers.

The entire wastewater of Prilep is discharged untreated through the Main Collector DN 700 into Prilepska River approximately 2 km southwest of the town.

Recognizing these problems with sewerage network in Prilep, the construction of a wastewater treatment plant (WWTP) and modernization of the wastewater system of Prilep have been identified as priority in the environmental sector.

The second phase for the rehabilitation and extension of sewage network in Prilep, which is part of this project, has the main goal to provide proper conditions for Municipality of Prilep and PCE ˝Vodovod i Kanalizacija˝ Prilep to disconnect all drain pipe in critical areas of the town and to extend network in un-sewer areas which lead to increase the number of connected inhabitancies to the city network.

The civil works that will be supervised by a team of engineers from Eptisa comprise:

  • Construction of 43 km of new sewer lines with pipe diameters from DN/ID 250 to DN/ID 400 for extension of the sewer network;
  • Construction of about 1260 sewer manholes;
  • Construction of about 2680 property connections;
  • Reinstatement of roads.

Eptisa will ensure that the services for supervision of the construction works are in accordance with all the requirements for quality control, control of design, control of quantities, supervision of the work progress, analyses of expenses as well as work on administrative questions during the construction and the defects liability period.

The Contracting Authority is Central Financing and Contracting Department, (CFCD) within the Ministry of Finance.
 
 Eptisa supervises construction works for the second phase of rehabilitation and extension of sewerage network in Prilep in Republic of Macedonia