This project involved the redesign of an approved water supply concept following revisions to the street layout and development plan in the Kumaritsa area of Novi Iskar.

The removal of a previously planned but unbuilt street required the water supply network to be reconfigured while maintaining the reliability and performance of the existing distribution system. The primary engineering challenge was to develop a new alignment for the Ø160 mm PEHD transmission main entirely within the revised street network.

A comprehensive comparison was carried out between the original and revised infrastructure layouts. Hydraulic calculations evaluated head losses, operating pressures, and network performance under both normal operating conditions and fire-flow scenarios. The analysis demonstrated that the increased pipeline length had only a negligible impact on hydraulic performance and did not compromise the reliability of the distribution system.

The revised design enables the implementation of the updated urban development plan without increasing the diameter of the primary water main or constructing utility infrastructure within the removed street corridor. This approach preserves the operational efficiency of the existing network while ensuring reliable water supply for both existing and future development plots.

The project demonstrates an integrated engineering approach that combines urban planning coordination, hydraulic analysis, and utility infrastructure optimisation to successfully adapt water supply networks to evolving urban development.