Ballyshannon & Rossnowlagh Water Supply Scheme, Donegal


    Water Treatment

    The demand area for the scheme consists of a large part of the Southern region of Donegal and includes the towns of Ballyshannon, Rossnowlagh, Bundoran and the rural areas southwest of Donegal including Ballymagroarty, Cashelard, and Rath/Lisminton. It is recommended to develop the supply area as one Regional Water Supply for the entire southern region of Donegal in compliance with the Local Government Act, 2001. The project examines the available source options in the region for the scheme and the adopted selection process for the optimum scheme source.

    The principal activities were a Preliminary Report, Design Review Report, Hydraulic modeling (Epanet) of water supply system for approximately 44km of watermains ranging in size from 100mm to 350mm, Design of DMAs, preliminary water audit, condition assessment and upgrading of existing watermains, Specimen design of Phase 1 and Phase 2 Scheme, DBO contract documents for the WTP and 2 reservoirs (FIDIC), Preparation of CPO and Part 8 planning documentation, wayleave negotiations and landowner agreements, Traditional contract documents (new PWC) for the network and remaining reservoirs, Design of watermains, rehabilitation and augmentation of existing network, Site investigation tender document preparation and administration, Review of Derryherk WTP (process and civil), Archaeological tender document preparation and administration and Ecological assessment and Appropriate Assessment.

    This project is now on hold until the legislation for the abstraction point can be implemented.

    Key features of this project:

    • WTP 11,000m3/day (Phase 1 = 6,000m3/d, Phase 2 = 5,000m3/d)
    • Twin 500mm dia intake pipes, 150m long
    • Sludge dewatering facilities
    • 3 storage reservoirs
    • Approx 16km of new watermains
    Client: Irish Water
    Location: Co. Donegal
    Value: €17.5 Million