drainage - dublin...zour largest pumping station, the main lift pumping station off pigeon house...

Celebrating 10 years of Engineering Continual Professional Development (CPD) in Dublin Drainage Did you know? The Dublin City Council Drainage Division manage: 50,000 road drainage gullies 2,500 metres of pipework 160 direct labour staff employed 6,000 Planning applications per year 110,000 manholes 40 Pumping stations Replace 2km of pipework each year Our largest pumping station, the Main Lift Pumping station off Pigeon House Road in Ringsend, has the capacity to pump 18.8 metres cubed of drainage (the volume of an average bathroom) per second. Ringsend Extension The Ringsend Wastewater Treatment plant is being extended to remove treat- ed water discharge from the environ- mentally sensitive Liffey estuary to a point further offshore. The new discharge location will take advantage of improved dilution and dispersion to greater water depths and stronger tidal currents. This will further improve the value of bay and estuary as cherished public amenities. Dublin City Council’s Treatment Plant serving 7 counties Trevor O’Neill, Joseph McGill and Dave Green Investigating drainage issues The City Council Drainage Division introduced a revised Gully cleaning programme in 1999. A new supervisory Inspector position was created in 2004 to oversee the cleaning of the city’s gullies. Depending on the location, all gullies are cleaned at least once per annum and up to 8 times per annum in flood sensitive areas. A web based computer application was created by Drainage Division staff which records the date and location of every single gully cleaning operation. The application also records whether any repairs are required and is then updated when the neces- sary repairs have been carried out. The gully cleaning unit numbers twelve staff who work either individually or in pairs. They operate a shift system, commencing work at either 4 AM or 6 AM which facilitates cleaning work on the heavily trafficked carriageways within the City Centre. Various plant items are utilised including purpose built Gully cleaning machines, CCTV cameras, flat bedded trucks and high powered jetting machines which can operate up to 4,000 PSI. Dublin Watercourses Blockage due to Fats, Oils and Greases - Georges Street Rathmines & Pembroke Trunk Sewer being divert- ed along Dodder river (as part of Aviva Stadium Works) CCTV Van and High Pressure Jet Vactor One of DCC’s high pressure jetting and vacuuming machines Road Gully Cleaning Dublin City Council is the first local authority in Ireland to implement a Fats, Oils and Grease (FOG) programme. The aim is to prevent the discharge of waste FOG into the drainage network from commercial kitchens. This material congeals on cooling and causes blockages in pipes. These blockages cause flooding of premises, overloading of wastewater treatment plants and pollution of rivers and streams. The objective of the programme is to issue a trade effluent discharge licence, under the Water Pollution Act, to each premises discharging FOG. Compliance with the licence is then monitored via regular inspections. Nearly 2000 premises are now licensed. FOG programmes are now being promoted by the Environmental Protection Agency as part of national strategy to achieve good status in waters, under the Water Framework Directive. Fats, Oils and Grease Programme Installing Pipework Cleaning syphon in times past CCTV Camera with elevator Vernon Avenue Pumping Station Services in a road Gerry Fitzpatrick and Paul Dunne Gully Cleaning

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Page 1: Drainage - Dublin...zOur largest pumping station, the Main Lift Pumping station off Pigeon House Road in Ringsend, has the capacity to pump 18.8 metres cubed of drainage (the volume

Celebrating 10 years of Engineering Continual Professional Development (CPD) in Dublin

DrainageDid you know?The Dublin City Council Drainage Division manage:

50,000 road drainage gullies

2,500 metres of pipework

160 direct labour staff employed

6,000 Planning applications per year

110,000 manholes

40 Pumping stations

Replace 2km of pipework each year

Our largest pumping station, the Main Lift Pumpingstation off Pigeon House Road in Ringsend, has thecapacity to pump 18.8 metres cubed of drainage (thevolume of an average bathroom) per second.

Ringsend ExtensionThe Ringsend Wastewater Treatmentplant is being extended to remove treat-ed water discharge from the environ-mentally sensitive Liffey estuary to apoint further offshore. The new dis-charge location will take advantage ofimproved dilution and dispersion togreater water depths and stronger tidalcurrents. This will further improve thevalue of bay and estuary as cherishedpublic amenities.

Dublin City Council’s Treatment Plant serving 7 counties

Trevor O’Neill, Joseph McGill and Dave Green Investigatingdrainage issues

The City Council Drainage Division introduced arevised Gully cleaning programme in 1999. A newsupervisory Inspector position was created in2004 to oversee the cleaning of the city’s gullies.Depending on the location, all gullies are cleanedat least once per annum and up to 8 times perannum in flood sensitive areas.

A web based computer application was created byDrainage Division staff which records the date andlocation of every single gully cleaning operation.The application also records whether any repairsare required and is then updated when the neces-sary repairs have been carried out.

The gully cleaning unit numbers twelve staff whowork either individually or in pairs. They operate ashift system, commencing work at either 4 AM or 6AM which facilitates cleaning work on the heavilytrafficked carriageways within the City Centre.Various plant items are utilised including purposebuilt Gully cleaning machines, CCTV cameras, flatbedded trucks and high powered jetting machineswhich can operate up to 4,000 PSI.

Dublin Watercourses

Blockage due to Fats, Oils and Greases - Georges Street

Rathmines & Pembroke Trunk Sewer being divert-ed along Dodder river (as part of Aviva StadiumWorks)

CCTV Van and High Pressure Jet Vactor

One of DCC’s high pressure jetting and vacuumingmachines

Road Gully Cleaning

Dublin City Council is the first local authority inIreland to implement a Fats, Oils and Grease(FOG) programme. The aim is to prevent the dis-charge of waste FOG into the drainage networkfrom commercial kitchens. This material congealson cooling and causes blockages in pipes. Theseblockages cause flooding of premises, overloadingof wastewater treatment plants and pollution ofrivers and streams.

The objective of the programme is to issue a tradeeffluent discharge licence, under the WaterPollution Act, to each premises discharging FOG.Compliance with the licence is then monitored viaregular inspections. Nearly 2000 premises arenow licensed. FOG programmes are now beingpromoted by the Environmental Protection Agencyas part of national strategy to achieve good statusin waters, under the Water Framework Directive.

Fats, Oils and GreaseProgramme

Installing Pipework

Cleaning syphon in times past

CCTV Camera with elevator

Vernon Avenue Pumping Station

Services in a road

Gerry Fitzpatrick and Paul Dunne Gully Cleaning

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