Case Studies

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PROJECT DESCRIPTION

The main bridge is a two level steel truss superstructure with road traffic on the upper level and rail on the lower level acting compositely with a pre-stressed reinforced concrete deck slab. The main tasks and activities of the Construction Supervision Consultants (CSC), covering the pre-construction, construction and post construction stages of the Main Bridge and River Training Works would include, but not limited to, the following: Design Review and others Requirements; Preparation of Project Implementation Plan; Project Management; Construction Supervision; and Project Completion/Closure Activities Specifications: Total Length = Approximately 6.15km (41 Spans of 150 m each), founded on 42 nos. of piers comprising 3m driven steel tubular or cased bored piles (of depth 100m – 115m), The superstructure has two level fabricated steel truss composite with a pre-stressed concrete upper deck slab. 4 lanes are on the upper level and single track rail line on the level below. The bridge also comprises of a major river training works both North (1.6 km) and South (12 km) bank. The upper deck steel truss (6.15km) is of Warren Type with a typical panel point spacing of 18.75m longitudinally. It is 13.5m wide and 12.7m deep which, combined with a 22m wide composite deck slab, makes a total depth of 13.6m. The members of the steel truss are typically welded rectangular hollow sections formed by steel plates, with thickness varying from 29mm to 70mm. The warren steel truss is considered to be corrosion resistant and considered as compatible as weathering steel. The road and rail viaducts at each end of the main bridge are spanned 38m each comprising precast pre-stressed concrete beams composite with cast in situ reinforced concrete piers supported by reinforced concrete bored piles.

KEY SERVICES
  • Design Review and others Requirements.
  • Preparation of Project Implementation Plan.
  • Project Management.
  • Construction Supervision.
  • Project Completion/Closure Activities.
PROJECT VALUE
US$ 48.62 million
SECTOR
Transport
CLIENT
Bangladesh Bridge Authority (BBA)
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PROJECT DESCRIPTION
  • Review and updating of designs that are already prepared during feasibility
  • Hydrological, Hydraulic and Morphological study and Mathematical Modeling for detailed design of the remaining polders
  • Preparation of complete detailed design for the remaining 12 polders
  • Conduction of environment and social surveys and studies for preparation of EIA, EMP, SIA and SMP reports
  • Preparation of Land Acquisition Plan (LAP) and LA proposal
  • Construction supervision
  • EIA, SIA, EMP, SMP and RAPs
KEY SERVICES
  • Review and updating of designs that are already prepared during feasibility
  • Hydrological, Hydraulic and Morphological study and Mathematical Modeling for detailed design of the remaining polders
  • Preparation of complete detailed design for the remaining 12 polders
  • Conduction of environment and social surveys and studies for preparation of EIA, EMP, SIA and SMP reports
  • Preparation of Land Acquisition Plan (LAP) and LA proposal
  • Construction supervision
  • EIA, SIA, EMP, SMP and RAPs
PROJECT VALUE
US$ 16.632 million
SECTOR
Agriculture and Natural Resources
CLIENT
Bangladesh Water Development Board (BWDB)
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PROJECT DESCRIPTION

The Government of the People’s Republic of Bangladesh (GOB) has entered into a memorandum of understanding (MOU) with the People’s Republic of China (PRC) to obtain financing towards construction of a tunnel under the river Karnaphuli in Chittagong. to be implemented by Bangladesh Bridge Authority (BBA). BBA has signed a contract (the Construction Contract) with the China Communications Construction Company Limited (the Contractor) for the design, manufacture, construction and commissioning of the tunnel with the approach roads, toll plaza, building services and electronic control systems and the GOB is now negotiating the Loan Facility Agreement. BBA thus engages a consulting firm(s) (the Consultant) to act as the Employer’s Representative (ER) under the Construction Contract to support its activities in all stages of the construction contract. This scope of services pertains to the works of the ER which includes detailed design, procurement, construction supervision, commissioning, testing and operation of the Construction Contract.

KEY SERVICES

The primary roles and functions of the ER/Consultant include but not limited to the following:

  1. Review of Contract Documents in compliance with the requirements of the Construction Contract,
  2. Detailed design and cost estimation of the tunnel and allied works,
  3. Review, inspection and monitoring of the construction works (temporary and permanent works),
  4. Assessment of geological, topographical, hydrological and environmental conditions at site,
  5. Review of the Contractor’s Quality Control System established under the Construction Contract and Employer’s Requirement especially on Environmental Protection,
  6. Review of the Contractor’s Environmental Management System,
  7. Review of the Contractor’s Site Safety Plan,
  8. Review of the inspection and test plans and results of the testing (plan materials and workmanship),
  9. Conducting the procedures required on behalf of the Client on Employer’s Taking Over and preparation of the Taking-over Certificate,
  10. Conducting procedures on behalf of the Client during the Defects Liability period and preparation of the Performance Certificate,
  11. Arrangement of Training as a specific component of the project:
    1. Overseas Training: 2 weeks’ training on contract administration, project management, PPP contracts, latest innovations in construction and maintenance of roads, bridges, river training works, asset management systems and sustainable maintenance in renowned instritutions of developed countries for 5 engineers/ professionals

Domestic Training: 1500 man-days’ training for 100 engineers and other BBA/PIU professionals on the above topics

PROJECT VALUE
US$ 37.01 Million
SECTOR
Transport
CLIENT
GOB (Govt. of Bangladesh)
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PROJECT DESCRIPTION

The project aims to increase the water-borne sewerage coverage in Dhaka city. The project will prepare a sewerage project with STP and sewer network in Rayer Bazar catchment area, Dhaka.

KEY SERVICES
  • Survey of the catchment area including topo survey, geotechnical investigation, field measurements and inspections.
  • Survey of the catchment area including topo survey, geotechnical investigation, field measurements and inspections.
  • Detailed civil/ structural and architectural design of sewerage treatment plant, sewer sections, sump and pump house, including electromechanical equipment.
  • On-site sanitation system design.
  • Preparation of BOQ including detailed design, estimates.
  • EIA.
  • Preparation of Detailed Project Report (DPR).
  • Preparation of contract document in Design, Built and Operate (DBO) format.
PROJECT VALUE
US$ 2.3 million
SECTOR
Water & Safeguard
CLIENT
Dhaka WASA funded by ADB
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PROJECT DESCRIPTION

Planning, design and construction/rehabilitation of FCD infrastructures, institutionalization of the process of identifying, planning, implementing, and managing water resources from an integrated and cross-sectoral perspective with the establishment of viable water management organizations (WMOs).

KEY SERVICES
  • Improved Water Management Systems in 9 sub-projects
  • Agriculture, Fisheries & Livelihood Support
  • Sustainable O&M systems
  • Detailed Engineering Design and Supervision Construction
  • IWMP of 4 subprojects
  • Institutional Strengthening and Project Management
  • Project Management
PROJECT VALUE
US$ 10.12 million
SECTOR
Agriculture and Natural Resources
CLIENT
Bangladesh Water Development Board (BWDB)
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PROJECT DESCRIPTION

The Bill & Melinda Gates Foundation, USA, is supporting the project to establish a Technical Assistance (TA) Hub in South Asia. The operations of the TA Hub will be managed by DevCon. The Hub will have two country operations units – one in Bangladesh and other in Nepal.

The project will provide technical assistance to governments (national and city levels), World Bank, ADB, Islamic Development Bank and other development partners in the planning, design and implementation of City-Wide Inclusive Sanitation (CWIS), Fecal Sludge Management (FSM), and Non-Sewered Sanitation (NSS) projects in South Asia. The projects will engage a large number of regional and international experts and agencies for providing technical assistance to Clients. The project operations will result in better environmental, public health and socioeconomic benefits for cities and particularly for the urban poor and excluded group in the communities especially women and girls.

KEY SERVICES
  • Feasibility studies and detail technical proposals for city-wide sanitation program in several cities and towns in Bangladesh and Nepal with focus on faecal sludge management (FSM).
  • Detailed technical design and drawings for sanitation components including faecal sludge treatment plants.
  • Design of sludge withdrawal and transport system including vacuum trucks and vacu tugs
  • Business model development for operation and maintenance of FSM components like treatment plants and collection and transport.
  • Preparation of technical specification and bid documents including in private public partnership (PPP) format
  • Research and testing of innovative technologies
  • Training and capacity building of staffs of government agencies, municipalities and NGOs
PROJECT VALUE
US$ 4.1 million
SECTOR
Water & Safeguards
CLIENT
Bill & Melinda Gates Foundation
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PROJECT DESCRIPTION
  • To create a hub airport in this region and meet growing air traffic demand of the country
  • Development of infrastructure necessary to build a new modern International Airport and communication link (Expressway, Railway etc.) with the capital city Dhaka
KEY SERVICES
  • Assist in Study on all areas/ factors for selection of a site for construction of the full-fledged international airport; liaise with CAAB and other authorities
  • Assistance in Cost-Benefit & Risk-Benefit analysis and Economic and financial analyses, with Financing & Operation Strategy
  • Conduct Social assessment and prepare Initial Environmental Examination (IEE) report on 3 sites and Environmental Impact Assessment (EIA) and Environmental Management Plan (EMP) for the final location
  • Data collection and investigation through detail engineering surveys, soil investigation including present transportation system
  • Investigation and analyses of at least three alternative sites to select a suitable one for the proposed hub airport
  • Airport site selection and verification (for operation of Code 4F type Aircraft)
  • Geotechnical analyses for sustainability of Runway and associated Airfield Pavement
  • Assist in Air traffic demand forecast and route development plan
  • Assist in Access transportation plan with connectivity to the capital and other major existing road/ rail communication network
  • Assist in Airport operation strategy/ plan, Land use planning, Layout and phasing plan and facilities requirement analysis
  • Conceptual design of passenger terminal building and other facilities based on the glorious political life of Bangabandhu Sheikh Mujibur Rahman
  • Cost estimation for construction and operation & maintenance
PROJECT VALUE
US$ 0.563 million
SECTOR
Transport
CLIENT
Civil Aviation Authority Bangladesh (CAAB)
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PROJECT DESCRIPTION
  • This project has comprised of two components i) Construction of a new Port ii) Construction of a new Port Access Road. The Construction of new road component has located in Chakaria and Moheskhali Upazilas of Cox’s Bazar district in Bangladesh.
  • Construction of 25.8 km long 4-lane Port Access Road on new Embankment
  • Construction of 17 bridges
  • Construction of 1.6 km long 4-lane Matarbari Port North-South Connector Road
  • Soft Soil Improvement Works
KEY SERVICES
  • Study of the engineering survey and soil investigation results for the execution of design
  • Detail design of pavement sections
  • Fixation of road alignment
  • Assist in preparation of bid documents, bid evaluation and facilitation of pre-contract discussion and finalization of contract documents
  • Construction supervision
PROJECT VALUE
US$ 5,721,350.96
SECTOR
Infrastructure
CLIENT
Roads & Highways Department (RHD)
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PROJECT DESCRIPTION
  • Construction of 4-Lane Highway from Daudkandi to Chittagong (Chittagong city Gate) Section of Dhaka-Chittagong Highway (N1)
  • Comprised 5 Major Bridges (total length 520 m), 3 Railway Overpasses (Flyovers) in Comilla (344.2m), Feni (86.4m) and Chittagong (53.9m), 17 Small Bridges (850 m), and 242 Culverts.
KEY SERVICES
  • Review and prepare revised design of the road alignment
  • Approve the contractor’s work program, method of statements, material sources, manpower and equipment deployment
  • Prepare and issue reports as defined subsequently
  • Make measurements and keep measurement records
  • Maintain records, correspondence and diaries
  • Assist the Engineer in maintaining consolidated project accounts and in preparing the financial statements
  • Certify completion of part or all of the works
  • Construction supervision
PROJECT VALUE
US$ 2.42 Million
SECTOR
Transport
CLIENT
Roads & Highways Department (RHD)
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PROJECT DESCRIPTION
  • Urban Infrastructure Improvement and construction (water supply and sanitation, urban roads and drainage, traffic management and intersection development, bus terminal, market development, slum improvement etc
  • Urban Governance Improvement
  • Capacity building
KEY SERVICES
  • Assistance to LGED in Pre-construction services (surveys and investigations, detailed design of infrastructure, bid Preparation and evaluation including award of contracts
  • Supervision construction of all civil works contract and services
  • Preparation of base maps, land use maps on scale 1:8000 for improvement/Expansion of Municipal Infrastructure facilities as Roads and Bridges; preparation of base map, spot lelvel map, landuse and drainage maps storm water drainage; system by using GIS software
  • Urban Governance Improvement Program in the areas of – citizen awareness and participation; women’s participation; integration of urban poor; financial accountability and sustainability and administrative transparency
  • Capacity building – Project management, engineering design, construction supervision, Institutional capacity building programs for Pourashava; training programs to implement the community based activities; computerization of tax records and billing; computerization of accounting management; infrastructure inventory assessment and mapping and training for decentralized township planning
PROJECT VALUE
US$ 5.34 million
SECTOR
Infrastructure
CLIENT
Local Government Engineering Department