Water Resources

Cork Lower Harbour Main Drainage Scheme | Nicholas O’Dwyer

/in , /by

Project Title: 

Cork Lower Harbour Main Drainage Scheme

Location:

County Cork

Client:

Irish Water / Ervia

Date:

2021

Business Sectors: 

Water/Waste Water Resource

Services (Technical Disciplines):

  • Feasibility
  • Preliminary Design
  • Detailed Design
  • Tender Dosiers
  • Procurement
  • Construction Supervision
  • Construction Management
  • Capacity Building

Our Role:

  • Design Review
  • Options Appraisal / Feasibility Studies
  • Development and calibration of Hydro works network models
  • Asset inspection and condition assessment of 63kms of underground drainage network (including topographical survey and CCTV inspection)
  • Preparation and calibration of detailed hydraulic model of underground drainage network (1,537 nodes)
  • Preparation of Network Contract Documents (Traditional)
  • Rehabilitation of 10km of sewer via re-lining
  • Preparation of DBO Contract Documents for WWTP (FIDIC – Gold)
  • Tendering Process for DBO/Traditional Contracts
  • Project Supervisor Design Process (PSDP) for Network Contracts
  • Project Supervisor Design Process (PSDP) for WWTP until DBO Contract Award
  • Contract Administration and Construction Management of DBO and Traditional Contracts
  • Construction Supervision (FIDIC)

Project Objectives/ Outcomes:

The Cork Lower Harbour Main Drainage Scheme (Cork LHMDS) serves the population/industrial centres of Cobh, Carrigaline, Crosshaven, Passage West, Monkstown, Glenbrook, Ringaskiddy Shanbally and Coolmore. The existing sewer network serving the Lower Cork Harbour area comprises mainly of combined sewer systems. Wastewater from Cobh, Carrigaline, Passage West/Monkstown and Ringaskiddy is currently discharged following preliminary screening or untreated into the Harbour. It was proposed to transfer wastewater from the Cork Lower Harbour to a new 80,000pe (Full Treatment Capacity of 54,000 m³/d) wastewater treatment plant site at Carrigaline. The final effluent will be discharged to Cork Harbour via and existing submerged outfall. The scheme includes the construction of eight main pumping stations and approximately 57km of new/upgraded sewers (ranging from 225mm to 1,050mm), rehabilitation of existing trunk sewers and surface water separation where economically viable. A section of 1,000m will be constructed by tunnelling. Nicholas O’Dwyer completed the preliminary investigations, design, contract documents, tendering/procurement, construction supervision and contract administration for the project.

Geoscience Ireland Contact:

Michel Davitt – mdavitt@nodwyer.com

London Gateway MT Park | ByrneLooby

/in , /by

Project Title: 

London Gateway MT Park | ByrneLooby

Location:

Stanford-le-Hope, UK

Client:

Charles Brand

Date:

Jan 2020 – Sept 2020

Business Sectors: 

Water Resources/Civil Infrastructre

Services (Technical Disciplines):

Design

Our Role:

ByrneLooby’s multidisciplinary team of geotechnical and engineering experts undertook the following role: intricate design of the landside infrastructure at the terminal including pavement and drainage design, foundation design for lighting and CCTV towers. We also provided the following consultancy services: Geotechnical Advisor on settlement analysis, and design and value engineering support during construction phases. Construction started on this exciting project in October 2019.

A large proportion of the site was formed by reclamation and ground conditions which comprised of significant deposits of dredged infill, with near surface soils of low stiffness and high compressibility. To improve the near surface soils to facilitate improvement to lighting tower foundations and pavement design, ByrneLooby specified and verified ground improvement by High Energy Impact Compaction (HEIC) prior to pavement construction.

Given the high imposed pavement loads relative to the propose use, a relatively thick CBGM layer (470mm thickness) was required as determined by pavement design. This entailed placement of CBGM in dual lifts, and as such ByrneLooby defined and monitored a rigorous testing and verification strategy, inclusive of extensive trials, to ensure monolithic performance of the CBGM layer. This allowed the use of CBGM pavement solution, providing significant savings in both cost and program over an alternative Concrete Slab solution.

Project Objectives/ Outcomes:

ByrneLooby were appointed as lead designer for civil engineering company Charles Brand on a £9.5m contract to build the London Gateway commissioned by DP World, one of the world’s leading logistics firms. The London gateway development is located on the north side of the Thames Estuary and is a state-of-the-art deep-sea port & Logistics Park with rail terminal. A new empty container yard for the port will provide six hectares of empty container stacking area. The project comprises 80,000 m3 of bulk excavation and a heavy-duty pavement, comprising cement bound macadam with surface finishes of grouted macadam and block paving.

Geoscience Ireland Contact:

Siobhan Warfield – marketing@ByrneLooby.com

Blanchardstown Regional Drainage Scheme | ByrneLooby

/in /by

Project Title: 

Blanchardstown Regional Drainage Scheme | ByrneLooby

Location:

Dublin, Ireland

Client:

Irish Water

Date:

June 2015 – Dec 2022

Business Sectors: 

Water engineering – Drainage Networks, Wastewater

Services (Technical Disciplines):

Consulting engineers and designers, project management, Tender support, construction supervision

Project Objectives/ Outcomes:

Irish Water, working in partnership with Fingal County Council allocated an investment fund of approximately €88 million to upgrade a strategically important sewer network with a new scheme called the Blanchardstown Regional Drainage Scheme. Located beside the M50 motorway within Tolka Valley Park this project represents a major capital investment and will involve the upgrade of the existing sewer network currently serving Blanchardstown and the surrounding catchment areas. This infrastructure will expand the capacity of the wastewater network and will facilitate existing and future residential and commercial development. It will also reduce the frequency and volume of untreated wastewater overflows from the wastewater network to the River Tolka.

Our Role:

The Water Division at ByrneLooby Headquarters in Dublin was appointed by Irish Water as consulting engineers and designers for the project. ByrneLooby managed the planning stages of the project on behalf of Irish Water, helping to expedite planning permission, formulating the contract documents, leading the procurement and design & build contract, evaluating tenders, and supervising the construction and commissioning on site.

ByrneLooby’s scope of work included:

  • 2km of pipeline installed using trenchless tunnelling techniques with the Tolka Valley Park Pumping Station
  • An underground stormwater management facility with capacity of approximately 30,000m³ to manage potential flood and stormwaters
  • A below-ground pumping station with above-ground control room with remote monitoring of levels along the network
  • A control building to house electrical switchgear, control equipment, an odour control unit, generator room and ESB sub-station and a pumping station

Geoscience Ireland Contact:

Siobhan Warfield – marketing@ByrneLooby.com

Arklow Main Drainage | ByrneLooby

/in /by

Project Title: 

Arklow Main Drainage

Location:

Arklow, Wicklow, Ireland

Client:

Irish Water

Date:

Nov 2015 – Ongoing

Business Sectors: 

Water engineering – Drainage Networks, Wastewater

Services (Technical Disciplines):

Wastewater reuse and treatment

Project Objectives/ Outcomes:

To eliminate untreated wastewater discharge to the Avoca river, development plans were drawn up for a new wastewater treatment plant in Arklow, Co. Wicklow. The project will entail the construction of a new Wastewater Treatment Plant to treat 36,000 PE with a new sea or river outfall. When completed, the Arklow Wastewater Treatment Plant will bring benefits to the local area in terms of human health and improved water quality.

Our Role:

ByrneLooby in collaboration with Arup was appointed to design preferred routes, so the interceptor sewers can gather the outfall and transport it to the new treatment plant. Given the location of existing untreated outfalls and transport flows to the new treatment plant, the challenge was to find the optimal alignment of sewers, in what are, difficult ground conditions.

ByrneLooby’s expertise in tunnelling and geotechnics combined with their expertise in water and network design enabled the team to devise the optimum solution. This project continues their historic involvement in delivering water infrastructure in Arklow, having previously been appointed as engineer for the Arklow Water Supply Scheme.

When completed, the Arklow Wastewater Treatment Plant will bring benefits to the local area in terms of human health and improved water quality.

Geoscience Ireland Contact:

Siobhan Warfield – marketing@ByrneLooby.com

Alumina Offloading Deep Water Pier Extension | ByrneLooby

/in , /by

Project Title: 

Alumina Offloading Deep Water Pier Extension | ByrneLooby

Location:

Sakhir, Bahrain

Date:

Sept 2018 – December 2020

Business Sectors: 

Marine & Coastal Engineering – Piers

Services (Technical Disciplines):

Construction Supervision, Contractors Support, Monitoring, Project Management, technical assistance

Project Objectives/ Outcomes:

An alumina operator in Bahrain was expanding its smelter operations with a sizable CAPEX investment making the project one of the largest brownfield developments in the region. Due to this expansion, the operator needed to increase the import of raw materials via its existing port facility. The upgrade included the demolition of an existing warehouse, the construction of two large silos and the expansion of the existing jetties to accommodate and unload 60,000-ton Panamax alumina vessels.

ByrneLooby added value for the client by recommending an alternative solution as outlined in the preferred bid. This consisted of installing 2 VSUs on the upgraded Jetty 2 which allowed speedier loading times for the 60,000-ton Panamax vessels, hence optimising the required works. Furthermore, ByrneLooby reviewed all technical submission for the proposed marine works (including upgrade of Jetty 1 and 2) according to the relevant codes and in line with the client’s expectations.

Our Role:

ByrneLooby was appointed as the Engineers Representative (ER) to provide technical assistance and construction supervision services of all civil and marine-related elements for the Alumina Pier Extension.

The teams scope included various elements some of those being reviewing and approving designs for all marine construction drawings (pier extension and access trestle), along with the construction drawings for the onshore structures (silos and conveyor system) which form part of this contract.

Through initiatives led by ByrneLooby site personnel, the team was able to lead design value-engineering exercises to reduce construction times and eliminate interruptions to the berthing and offloading operations of the client’s vital material offloading at the port.  ByrneLooby also conducted daily site inspections during the construction phase to ensure compliance with approved drawings and approved design standards.

Geoscience Ireland Contact:

Siobhan Warfield – marketing@ByrneLooby.com

River Dargle Flood Defence Scheme | JB Barry & Partners

/in , /by

Project Title: 

River Dargle Flood Defence Scheme | JB Barry & Partners

Location:

Wicklow, Ireland

Client: 

Bray Town Council

Business Sectors: 

Civil Infrastructure

Services (Technical Disciplines):

The Scheme comprised of a variety of flood defences including construction of new sections of earth embankments, demolition and rebuilding of river walls with extensive stone and timber/timber-type facing, channel excavation and regrading, and river bank strengthening. A range of landscape treatments in and adjacent to the river are proposed to mitigate the impacts of the scheme on the local environment along the river corridor.

Project Objectives/ Outcomes:

The purpose of the scheme was to protect the town of Bray, County Wicklow from flooding from the River Dargle. The Works consisted of the design and construction of flood defences, river widening and regrading along the lower reaches of the River Dargle.

The works extended over approximately 3.3 km of the river from the N11 Bridge to the DART Harbour Bridge. The flood defences were required to provide protection against a 1 in 100 year fluvial flood and 1 in 200 year tidal flood. The Works also included the design and construction of 7mx4m culvert adjacent to Bray Bridge, the only vehicular bridge in Bray Town, to act as a fourth arch to the bridge.

Geoscience Ireland Contact:

Kieran O’Dwyer (kodywer@jbbarry.ie)

 

Bridgwater Tidal Barrier Phase 2 Ground Investigation | Causeway Geotech Ltd

/in , /by

Project Title: 

Bridgwater Tidal Barrier Phase 2 Ground Investigation | Causeway Geotech Ltd

Date:

September to December 2019

Location:

Bridgwater, Somerset, England

Client: 

The Environment Agency / BAM Nuttall

Business Sectors: 

Environment (Flood Defence)

Services (Technical Disciplines):

The completion of land and overwater ground investigation works, including cable percussion boring, rotary drilling, static cone penetration tests and trial pitting. Overwater works were completed off a jack-up barge, with a series of temporary floating walkways installed from the riverbank to allow access and egress to the working platform at all states of the tide.

Project Objectives/ Outcomes:

Causeway Geotech were appointed by BAM Nuttall Ltd on behalf of the Environment Agency to carry out land and overwater ground investigation works for provision of geotechnical and environmental information to characterise ground conditions at the site of the proposed Bridgwater Tidal Barrier for input to the design and construction phase.

The success of this project relied heavily on good communication between all parties; works carried out under the supervision of a full time Site Agent and two designated Site Engineers (1 land and 1 marine) from Causeway Geotech.

The River Parrett feeds the Bristol Channel and has the second highest tidal range in Europe; bespoke access solutions were required to ensure overwater works could continue uninhibited.

The contract was completed on time and on budget to the satisfaction of all involved stakeholders.  The construction phase is due to commence in Q3 2022 following public consultation.

Our Role: 

This was an Early Contractor Involvement (ECI) where the Principal Contractor (BAM Nuttall Ltd) appointed Causeway Geotech on behalf of their Client (Environment Agency) with the scheme Designer (Jacobs UK) acting as Investigation Supervisor.

The scope of works included:

  • 4 overwater boreholes by cable percussion boring and Geobor S wireline follow-on coring
  • 4 overwater Cone Penetration Tests
  • Overwater works conducted off a C5 jack-up barge
  • 12 land-based boreholes by a combination of cable percussion boring and Geobor S wireline coring
  • 14 boreholes by dynamic sampling methods
  • 29 land-based Cone Penetration Tests
  • In-situ testing including packer tests, HPD tests, borehole permeability tests and indirect CBRs by DCP
  • 40 trial pits by mechanical excavator
  • Factual ground investigation report.

Geoscience Ireland Contact:

Darren O’Mahony (Darren.omahony@causewaygeotech.com)

Ras Tanura Port Upgrade | ByrneLooby

/in , /by

Project Title: 

Ras Tanura Port Upgrade | ByrneLooby

Location:

Saudi Arabia

Client: 

HUTA

Business Sectors: 

Civil Infrastructure/ Water Resources

Services (Technical Disciplines):

Design

Project Objectives/ Outcomes:

ByrneLooby are a market leader in marine engineering and expertise and brought these capabilities to this project in Saudi Arabia. The primary objective of the Ras Tanura Port Upgrade is to improve the safe turnaround time of the vessels loading/offloading, to accommodate for the rapid expansion of offshore oil and gas operations in the Arabian Gulf. The forecast from the Drilling & Workover Departments indicated that the number of offshore drilling rigs will result in an increase in the support vessels in 2019 and beyond. ByrneLooby worked in collaboration with Wood Group in the delivery of the detailed design for HUTA who were the appointed LSTK contractor.

Our Role: 

The upgrade of the West Pier had a capital cost of $50m for the upgrade of the existing quay wall. The length of the upgraded wall is approximately 700 meters long. In addition, one alongside type berth will be constructed for wet docking maintenance, and a ramp will be constructed for deploying pollution equipment and small boats from onshore to offshore. This project will increase the 2,500 Tons Maximum Displacement Weight (MDW) capacity of the existing quay wall to 4,500 Tons MDW.

The primary objective of the project design is to improve the turnaround time of the vessels loading/offloading and improve the safe operation of the marine fleet, in compliance with ARAMCO requirements. ByrneLooby / Wood Group successfully achieved this.

Geoscience Ireland Contact:

Steve Gregan (SGregan@ByrneLooby.com)

Al Naseem Development | ByrneLooby

/in , /by

Project Title: 

Al Naseem Development | ByrneLooby

Location:

Diyar Al Muharraq, Bahrain

Client: 

Stantec / MSCEB

Business Sectors: 

Civil Infrastructure & Water Resources

Services (Technical Disciplines):

  • Marine Engineering
  • Numerical Modelling
  • Construction Supervision

Project Objectives/ Outcomes:

Al Naseem is a mixed-use water front development within the master planned Diyar Al Muharraq community in Bahrain. This unique development is envisaged as a premier marine lifestyle development with villas and apartments overlooking outer and inner canals. Other components of the project include amenities like Retail, Promenade, Marina Yacht Club and a Boutique Hotel along with a seafront view.

ByrneLooby were tasked with providing technical inputs in the development of the masterplan, design of the internal canals, lock gate and water recirculation system. The canals were designed as a hybrid wall which included using precast concrete blocks placed on a rubble mound. The hybrid wall was proposed as a smart solution to optimise the plot size whilst ensuring safe navigation and adjacent berthing.

Our Role: 

Infrastructure Consultants Stantec Khonji appointed ByrneLooby to develop the masterplan and provide marine services and MSCEB was assigned as Lead Architect. ByrneLooby provided the following marine services:

  • Masterplan development
  • Canal edge projection design
  • Numerical modelling studies
  • Concept marina and artificial beach design layouts
  • Navigation and dredging assessments
  • Lock gate and water recirculation system concept design

ByrneLooby has also been appointed to provide supervision for the construction of various marine and civil packages, including the inner canal, lock gates, pump stations, dredging and reclamation, and outer edge protection construction. ByrneLooby will also oversee the installation of the internal and external mooring structures.

Geoscience Ireland Contact:

Steve Gregan (SGregan@ByrneLooby.com)

Lilongwe Water Board Treatment Works | Nicholas O’Dwyer

/in /by

Project Title: 

Lilongwe Water Board Treatment Works | Nicholas O’Dwyer

Location:

Lilongwe, Malawi

Client: 

Lilongwe Water Board

Business Sectors: 

Water Resources

Services (Technical Disciplines):

  • Detailed Design
  • Tender Dossiers
  • Procurement
  • Construction Supervision
  • Construction Management

Project Objectives/ Outcomes:

The main objective of the project is to prepare detailed engineering design, cost estimates and tender documents for Treatment Works III (50,000m³/day Drinking Water Treatment Plant), provide assistance in the tendering process and to supervise construction of the works.

The project also included upgrade of existing water treatment plants (capacity of 125,000m³/d) to serve over 1.1 million people in the city of Lilongwe, Malawi. The scope of the works include: Analysing the suitability of locating Treatment Works III on an alternative site to one proposed in preliminary design report; Preparation of detailed engineering designs, drawings, specifications for the Water Treatment Works III (TW III) and tender documents; Financial Analysis – Preparing cost estimates, economic, and financial assessments including the following: Preparing detailed cost estimates for the technology, civil works, commissioning, and erection including environmental and social costs; Environmental and social scoping of the water supply facilities; Assessing and reviewing operational efficiency of the existing water treatment plants (TWI and TWII) and proposing measures for efficiency improvement, including detailed designs and cost estimates; Construction supervision of the Treatment Works III including efficiency improvement measures for TWI and TWII.

Our Role: 

  • Detailed engineering design
  • Review of Tender Documents including Drawings, Specifications, Modifications to Conditions of Contract (FIDIC Red Book)
  • Preparation of Contract Documents, Tender Evaluation and Recommendation of Preferred Bidder, Tender Adjudication
  • Construction Management including; Review of Contractors Proposals Management of Variation Orders Commissioning Certification Interim and Final Valuations Dispute Resolution
  • Construction Supervision (FIDIC Red Book)
  • Defects Liability Monitoring

Geoscience Ireland Contact:

Michel Davitt – mdavitt@nodwyer.com

GSI Logo DCCAE Logo
DFA Logo EI Logo