Water Resources

Arklow Main Drainage | ByrneLooby

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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

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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

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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

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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

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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

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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

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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

Nacala Boreholes, Transmission Mains, and Distribution Centres | Nicholas O’Dwyer 

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Project Title: 

Nacala Boreholes, Transmission Mains, and Distribution Centres | Nicholas O’Dwyer

Location:

Nacala, Mozambique

Client: 

Fundo de Investimento e Património do Abastecimento de Água (FIPAG)

Business Sectors: 

Environment, Water Resources

Services (Technical Disciplines):

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

Project Objectives/ Outcomes: 

The Nacala water supply distribution system is supplied by two sources. The first source is a dam on the Muecula River some 30 km south west of the city. The reservoir has a storage capacity of about 4.4 million m³. The dam was rehabilitated and raised to expand the capacity of the reservoir to facilitate a supply increase from 7,200 to 10,000 m³/day.

The second source for the distribution system is the Mpaco and Mutuzi (I and II) well fields. These well fields have a total of ten boreholes with flows between 1,080 and 2,400 m³/day each, resulting in a combined capacity of 13,920 m³/day. Further groundwater investigations indicated that the sustainable capacity of this second source was 23,000 m³/day. This project provided for the construction of the following works: Development of 22 No. Borehole sources together with collection systems; 2 No. 200m³ RC collection reservoir and 1 No. 100m³ RC collection reservoir; 4 No. High lift Pumping stations; Approximately 10km of 350mm and 17km of 200mm transmission mains; 2,000m³ service reservoir and 250m³ water tower; Extensive mechanical and Electrical works.

Our Role:

  • Preliminary and Detailed Design of Groundwater Abstraction Systems, pumping stations, Transmission Mains
  • Design review of Distribution Centre and Water Tower
  • Preparation of Tender Dossiers
  • Review the Environmental Management Plan (EMP) prepared by the Contractor
  • Supervision of the construction, commissioning and hand-over of the Schemes
  • Monitoring the Contractors design progress in accordance with the Contractual Programme
  • Instructing and monitoring the Contractor regarding compliance with health and safety precautions
  • Review of payment applications and approval of all eligible payments for the Employers action

Geoscience Ireland Contact:

Michel Davitt – mdavitt@nodwyer.com

Chetwynd Reservoir Internal Inspection | Murphy Geospatial

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Project Title:

Chetwynd Reservoir Internal Inspection | Murphy Geospatial

Location:

Cork, Ireland

Client: 

Malachy Walsh & Partners / Irish Water

Business Sectors: 

Civil Infrastructure / Water Resources

Services (Technical Disciplines):

Upon receipt of an initial enquiry regarding the ability to obtain UAV captured images of the internal concrete wall of the reservoir, we gained an understanding of what Malachy Walsh & Partners required. Due to difficulties in ensuring reliable communications with a UAV, Murphy Geospatial suggested an alternative approach which was accepted by our client.

Upon award of the contract, Murphy Geospatial coordinated with multiple stakeholders to ensure all necessary preparations were made. The reservoir was emptied for the purposes of the inspection and any necessary repair, so the inspection needed to be carried out within a certain window of opportunity.

A two-man team was used to carry out the survey. With all appropriate PPE, including rope access harness and confined space kits, our inspectors used a 10 m telescopic pole in 3 radial bands around the internal wall of the reservoir at increasing heights. The pole had high-intensity LED lights to illuminate the wall and a high-definition HDR camera which could be remotely operated from the ground. A preview of the image was visible to the inspectors to ensure high quality results and avoid blurred images etc. before moving to the next section.

Project Objectives/ Outcomes: 

Murphy Geospatial delivered a set of high-quality photographs enabling an appropriate engineering assessment to be carried out.

Our client was able to proceed with their engineering assessment with confidence. Our combined efforts, along with other project stakeholders, partly ensures that residents of Cork City will have a secure water supply for years to come.

Our Role:

Murphy Geospatial was approached by Malachy Walsh & Partners to assist with the structural inspection of a key part of the water supply infrastructure in Cork City. High-quality visual inspection data was required to identify any defects in the post-tensioned concrete Chetwynd water reservoir structure, south of the city. The internal space was classified as confined space working, perfectly suited to our specialist inspection skills. Murphy Geospatial proposed a bespoke solution to capture the data required, fixing remotely operated high-definition cameras and LED lights to a telescopic pole.

Geoscience Ireland Contact:

David Graham (dgraham@murphysurveys.ie)

Monrovia Raw Water Pipeline Project | Nicholas O’Dwyer

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Project Title:

Monrovia Raw Water Pipeline Project | Nicholas O’Dwyer

Location:

Monrovia, Liberia

Client: 

MCA-Liberia

Business Sectors: 

Water Resources

Services (Technical Disciplines):

  • Detailed Design
  • Procurement
  • Construction Supervision
  • Capacity Building

Project Objectives/ Outcomes: 

The objective of the Project was to replace the raw water pipeline from the dam at the Mount Coffee Hydro Power Plant (MCHPP) to the Water Treatment Plant (WTP) serving Monrovia. During the pre-civil war period, there were two raw water supply sources feeding the WTP: a) A 42-inch intake pipe and lift pumps on the St. Paul River where the WTP is located. b) A 36-inch ductile iron pipe (DIP) that transmitted water by gravity from the dam at the MCHPP to the WTP. In the 1970s, the gravity pipeline was installed to replace the 42-inch intake at the WTP due to saltwater intrusion at the river intake.

The proposed pipeline route was approximately 5 km long and generally followed the original alignment of the pipeline with small deviations. Replacement of the river intake pumps with gravity flow through the new pipeline will reduce energy use at the WTP. In addition, the improved reliability of the raw water supply to the WTP will result in more consistent water supply to the LWSC service area. MCA-Liberia procured a Works Contractor for executing a design-build contract following FIDIC Conditions of Contract for Plant and Design-Build 1999 (“Yellow Book”), MCC’s Environmental Guidelines and the IFC Performance Standards.

The Scope of Works comprise all Works (detailed design, manufacture, supply, erection, construction, installation, testing, commissioning and training) necessary for the Works Contractor to design and construct fixtures, fittings, and equipment for the Works to be fit for conveying water from the MCHPP reservoir to the WTP.

Our Role:

  • Review of Tender Documents including Drawings, Specifications, Modifications to Conditions of Contract (FIDIC Yellow Book)
  • Preparation of Contract Documents, Tender Evaluation and Recommendation of Preferred Bidder
  • Construction Management including; Review of Contractors Proposals Management of Variation Orders Commissioning Certification Interim and Final Valuations Dispute Resolution
  • Construction Supervision (FIDIC Yellow Book)
  • Defects Liability Monitoring
  • Capacity Building / Training (with emphasis on FIDIC Yellow Conditions of Contract)

Geoscience Ireland Contact:

Michel Davitt – mdavitt@nodwyer.com

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