Survey, Design, and Construction Supervision (Resident) Services in Karachi, Pakistan Work Station: Karachi, Pakistan Expected Start Date: 1 May 2026 1. Background / Rationale: The United Nations Human Settlements Programme (UN-Habitat) is the United Nations agency mandated by the General Assembly to promote socially and environmentally sustainable towns and cities with the goal of ensuring adequate shelter for all. In Pakistan, UN-Habitat works in partnership with national and provincial governments, development partners, civil society organizations, and academic institutions to support inclusive urban development and improved living conditions in underserved settlements. UN-Habitat Pakistan is currently implementing a participatory settlement upgrading programme in several cities, including Haripur, Kohat, Peshawar, Karachi, and Quetta. In Karachi, the programme targets 12 underserved settlements where Community Action Planning (CAP) processes are being conducted to identify priority needs and feasible interventions. The programme combines social programming with targeted infrastructure improvements, including public space upgrades, improved connectivity, and the construction and rehabilitation of small-scale infrastructure. These interventions aim to enhance living conditions by improving access, water supply, sanitation and sewerage services, and other essential community infrastructure. Karachi, Pakistan’s largest metropolitan city, faces complex urban challenges including high population density, heavy traffic volumes, monsoon-driven drainage issues, and coastal environmental conditions. Within this framework, the project also includes improvements to smallscale urban infrastructure to enhance accessibility and safety. The present procurement is covers the design and construction supervision of two Steel Bridges Near Lassi Goth (10ft wide – 260ft long for light vehicular bridge) and Hassan Noman, (4ft wide – 230ft long pedestrian bridge) Karachi Page 2 of 9 2. Objectives of the Assignment: The objective of this assignment is to procure the services of a qualified consulting firm to undertake the engineering design and construction supervision of two bridges in Karachi. The consulting firm will conduct the necessary site surveys, soil investigations, hydrological assessments, and traffic load analyses required for safe, reliable, and economical bridge design. Based on these investigations, the consultant will prepare complete engineering design packages including detailed drawings, structural calculations, technical specifications, Bills of Quantities (BOQs), and engineer’s cost estimates to support procurement and construction. The firm will also support UN-Habitat in obtaining necessary approvals and No Objection Certificates (NOCs) and also provide technical clarifications during the procurement process (if required). The consultant firm will prepare all required engineering calculations and documentation to facilitate third-party design validation or review by the relevant government authorities. During the construction phase, the consulting firm will act and provide Engineering services on behalf of UN-Habitat, for the works and provide full construction supervision to ensure that the works are implemented in accordance with the approved designs, technical specifications, environmental and social safeguards, and applicable safety standards. The consultant will establish and implement a comprehensive Quality Assurance and Quality Control (QA/QC) system, including supervision of construction activities, review of contractor method statements, verification of contractor performance, certification of work progress, and monitoring compliance with contract specifications and engineering standards. Material testing required for quality control will be carried out by the contractor through approved laboratories, while the consultant will review testing procedures and results, watch critical tests where necessary, maintain testing records, and ensure that only quality materials are used in the works. In addition, the consultant firm will provide contract administration services, including the review of contractor submissions, review and recommendation of interim payment certificates for UNHabitat approval, evaluation of variations, and monitoring of construction progress against the approved schedule. The consultant firm will remain engaged until completion of the bridges and issuance of the Substantial Completion Certificate to the contractor. During the construction stage, UN-Habitat (including third-party monitoring entity) will undertake routine monitoring of the works and oversee the certification of payments, management of variations. UN-Habitat directly or through Third party monitoring, will be responsible for handover process and will monitor the project during the Defects Liability Period (DLP) and coordinate with the contractor to ensure that any defects identified during this period are properly addressed. Below is the bridges information. Bridge-1: Light vehicular Steel bridge 260 ft long X10 ft wide at Lassi Goth-Karachi Bridge-2: Pedestrian Steel bridge 230ft long x 4 ft wide at Hassan Noman-Karachi 3. Scope of Work: Page 3 of 9 The consulting firm will provide all professional services necessary for the soil investigation, design, documentation, and technical support during the construction of two bridges in Karachi. The investigations and studies undertaken for design purposes will be limited to those reasonably required to support a safe, reliable, and economical bridge design, and will be proportionate to the scale and complexity of the works. The assignment includes geotechnical investigations, determination of High Flood Level (HFL), estimation of scour depth, detailed engineering design, preparation of construction documents, and technical supervision during construction. The scope includes the below but not limited to; 3.1. Site Surveys and Investigations: The consultant firm will undertake all necessary surveys and investigations required for the proper design of the bridges, which include: a. Topographic surveys of the proposed locations for both bridges, including surrounding terrain, approaches, drainage paths, and existing infrastructure b. Carry out geotechnical investigations and soil testing at both bridge locations to determine soil characteristics, bearing capacity, groundwater conditions, and other parameters required for foundation design and prepare report. c. Determine the appropriate design load classification for the bridge based on analysis of current and projected traffic volumes and composition, covering cars, pedestrians, bicyclists, and other vehicles. d. Collect and review relevant site data, existing infrastructure information, and environmental conditions. 3.2. Concept Design: Prepare concept design options and layout drawings for both bridges including footpaths, service ducts, accessibility elements and finalize the concept in consultation with UN-Habitat. Explore the possibility of introducing guiding tiles for visually impaired persons, and the use of Sindh motifs to enhance the visual identity of the bridges. 3.3. Structural Design: prepare complete structural designs for the bridges and associated structures, ie. Foundation/ sub-structure, super-structures/abutments, deck, railing, approach road, protection work if needed. The firm will submit the design for review and endorsement by a third-party validator or relevant government department, as recommended by UN-Habitat. 3.4. Engineering documents: prepare complete construction documentation for bidding and implementation of the works which include but not limited to, • Detailed structural drawings, construction drawing, reinforcement details, connection details, welding, riveting and bolting requirements and fabrication drawings. • Prepare Bills of Quantities (BOQs) for structural works. • Prepare Engineer’s Cost Estimates. • Technical specifications. • Bidding document. Page 4 of 9 3.5. Construction Supervision; During the construction phase, the consultant firm will provide Engineer supervisory services on behalf of UN-Habitat to ensure that the works are implemented in accordance with the approved designs, drawings, technical specifications, safety standards, and environmental and social safeguard requirements. The consultant will deploy qualified supervision personnel to monitor construction activities, review the contractor’s work plans and method statements, verify the quality of materials and workmanship, certify completed works for payment, and ensure compliance with contractual requirements. The consultant will review and approve the contractor’s shop drawings prior to fabrication and installation. The consultant will advise UNHabitat on any design-related issues or structural concerns arising during construction. The bridge layout will be set out by the consulting firm’s surveyors and verified by the designer. Considering the scope of work and the proximity of the two bridges, the consultant may manage supervision through a single site office, preferably located at the vehicular bridge site in Lassi Goth. The consultant firm will ensure adequate and timely site presence through qualified supervision personnel during critical construction activities. Note Construction duration for both bridges is expected to be six months, so consulting firm should consider six months for construction supervision wile resource plaining Note on Compliance: The design, analysis, detailing, and construction documentation for the bridges will comply with NHA specifications and internationally recognized engineering standards (AISC, ASTM, ACI). The design will ensure safety, durability, and serviceability under applicable loads and environmental conditions. Particular attention will be given to corrosion protection, including the use of rust-resistant coatings, considering the potential salt exposure in Karachi. Note on Scope: The scope and extent of geotechnical investigations, hydrological studies, and other technical assessments shall be commensurate with the scale of the works and shall be agreed with UN-Habitat prior to execution to ensure efficiency and cost-effectiveness. Design review and consultation meetings: The firm representative will attend design review and progress meetings with UN-Habitat during the design development stage of the project. These meetings may also involve other project stakeholders and are expected to be more frequent during the early phases of the design stage. Expected Outputs/Deliverables (Single package for two bridges). 1. Submission of Inception report 2. Submission of topographic maps, brief assessment report on hydrology, soil investigation of two location and determination of load class, 3. Submission of Detailed Engineering Design Package. (Approval will subject to third party validation) 4. Submission of Bidding package. 5. Submission of mid-term technical advisory and supervision notes and shop drawings. 6. Submission of final technical advisory notes & supervision report, As built drawings. 7. Submission Final report Page 5 of 9 4. Project duration and workplan: The overall project duration is 12 months, excluding the Defects Liability Period (DLP), and includes a three-month procurement waiting period. Workplan Activities Deliverable Timeline Contract signing, inception report, kick-off meetings. Inception report 15-May-26 Conduct topographic surveys, geotechnical investigations, review of water flow data including traffic load determination for vehicular bridge Assessment report 15-Jun-26 Preparation of concept design options in consultation with UN-Habitat Concept Design Package 30-Jun-26 Structural design (with calculation) of both bridges’ DED Package 15-Jul-26 Preparation of construction drawings, BOQs, engineer’s cost estimates, technical specifications, and bidding documents Bidding Package 30-Jul-26 Construction supervision for both bridges, including verification that the works comply with the approved designs, drawings, and technical specifications, and certification of final payment, Shop drawings and As built drawing Technical Advisory Notes / Supervision Reports Nov 2026-Apr 2027 Completion report/ As built drawings Final Report 30 June 2027 DLP (Outside the scope of consulting firm) NA 30 Oct 2027 Page 6 of 9 5. Payment Schedule Installments Deliverable description Upon completion of Deliverable Payment (%) Due date 1st 1. Submission of Inception report 1,2 20% 30 Jun 2026 2. Submission of topographic maps, brief assessment report on hydrology, soil investigation of two location and determination of load class (vehicular bridge only), 2nd 3. Submission of Detailed Engineering Design Package. (Approval will subject to third part validation) 3,4 20% 10 Aug 2026 4. Submission of Bidding package. 3rd 5. Submission of mid-term technical advisory and supervision notes and shop drawings. 5 30% 15 Jan 2027 4th 6. Submission of final technical advisory notes & supervision report, As built drawings. 6,7 30% 30 Apr 2027 7. Submission Final report 6. Team Composition and Estimated Time The Consultant firm shall provide the required staff and qualifications to manage all the different tasks of the assignment. Client reserves the right to reject and/or instruct removal of staff due to nonperformance. Key Staff Qty Month Total months Role Lead Bridge design/structural engineer 1 3 3 Structural design + overall supervision oversight Resident engineer 1 6 6 Full-time supervision Site inspectors 2 6 12 Monitor daily construction works Quantity surveyor 1 2 2 BOQs, cost estimates, IPC certification Safety expert and traffic management 1 6 6 Safety, traffic management, Surveyor 1 1 1 Topographic survey/setting-out Survey helper 2 1 2 helper Geotechnical Engineer 1 0.5 0.5 Soil investigation Page 7 of 9 7. Evaluation Process Proposal / Quotation shall be opened at the opening committee; Procurement office shall remain responsible for reviewing and initiating the evaluation process. Offers should be compliance with the deliverables. Purchase Order / Contract will be issued to the lowest compliance quotation / proposal Technical proposals will account for 70% of the total score. The Only firms achieving the minimum technical qualifying score will proceed to the next step. The work will be awarded to the lowest cost compliance proposal / quotation. Technical Evaluation Criteria (100 points) 7.1.1 Experience (25 points) Criteria Description Points Experience in bridge design Experience in design of steel bridges and associated structures 10 Experience in construction supervision Experience acting as Engineer/consultant for supervision of bridge or infrastructure works 10 Experience in conducting studies Experience in conducting topo survey and soil exploration 3 Experience with government / international organizations Experience working with public sector or development partners 2 7.1.2. Methodology (35 points) Criteria Description Points Understanding of the assignment Understanding of bridge design, investigation supervision role, and project context in Karachi 5 Approach for surveys and investigations Methodology for topo survey, soil investigation, hydrology assessment, and traffic analysis 5 Engineering design approach Approach for concept design, structural analysis, design standards (NHA, AISC, ASTM, ACI), corrosion protection 10 Approach for construction supervision Supervision strategy, QA/QC system, review of contractor submissions, monitoring compliance and resource efficiency 8 Work plan Logical sequencing of tasks and completion in duration 5 Risk management Identification of design and construction risks and mitigation measures 2 Page 8 of 9 7.1.3. Key Staff Evaluation Criteria (40 Points) Position Key Evaluation Criteria Score Bridge Design / Structural Engineer (Team lead) Education in Civil/Structural Engineering, Registration with PEC. minimum 10 years’ experience in bridge design and structural analysis, experience in steel bridges and construction supervision 10 Resident Engineer Degree in Civil Engineering, minimum 8 years’ Registration with PEC, experience in construction supervision of infrastructure or bridge projects. 8 Site Inspectors (2) Diploma/BSc Civil Engineering, minimum 5 years’ experience in site supervision of civil works, experience in monitoring construction quality and safety 7 Quantity Surveyor Degree/Diploma in Civil Engineering or Quantity Surveying, minimum 5 years’ experience in BOQs, cost estimates, and certification of contractor payments 4 Safety and Traffic Management personal Minimum 5 years’ experience in construction safety and traffic management for infrastructure projects 3 Surveyor Diploma in surveying, minimum 5 years’ experience in topographic surveys and construction layout setting-out 3 Geotechnical Engineer Degree in Geotechnical, 5 years’ experience in soil investigation and foundation design 5 8. Eligibility • Firm registered with SECP ad Private Limited Company or equivalent legal entity • Valid PEC registration (Category relevant to bridge design). • The firm must have successfully completed at least two bridge design assignments of similar nature during the last seven years, supported by completion certificates or client references. • Active Taxpayer / Sales Tax Registered (Last 03 Years Tax returns) • Company Profile with Engineering Staff on pool • Firm Not Black listed (Affidavit on Stamp Paper confirming that the firm is not blacklisted by any Federal/Provincial Government Department Consultancy) • Adequate technical staff and equipment • The firm must declare that it has no conflict of interest related to the assignment. A Consultant firm who (i) who not meet eligibility criteria and scoreless then 70% will be non-compliance quotation and will not be considered further. Financial Evaluation Criteria • All Quotations should be clear, concise, comprehensive and itemized according to the specifications and quantities. Quotations should be in local currency and shall be subject to arithmetic review of prices. Where total prices are incorrect, unit prices should govern. Page 9 of 9 9. Submission requirements A. Technical Proposal / Quotation: The Technical Proposal / quotation shall include the following: 1. Methodology and approach describing the understanding of the assignment and proposed implementation strategy. 2. Work plan and implementation timeline indicating the sequencing of activities and deliverables. 3. CVs of proposed key staff demonstrating relevant qualifications and experience. 4. Company profile, including legal registration details and valid Pakistan Engineering Council (PEC) registration. 5. Certificate of incorporation from SECP 6. Evidence of similar assignments, including brief descriptions of relevant bridge design or infrastructure projects completed by the firm. 7. List of available equipment, software, and technical resources relevant to the assignment or lease agreements. B. Quotation: The Financial quotation shall include below submit in the provided format. This section is for financial proposal / quotation and should be submitted. The firm is expected to quote full cost to complete the task within the stipulated timeframe. Cost breakdown linked to the deliverables outlined in the TOR. Total lump-sum price for the assignment including any applicable taxes. The estimated budget for this assignment is around US$ 16,300 This section is for Price Quotation and should be submitted along with the supporting document / eligibility criteria (email ID and address is provided in article 2.) before the deadline. Incase of email, the title of the email should be - (Survey, Design, and Construction Supervision) S. No Component PKR 1 Conducting topographic survey and preparation and submission of survey drawings and report required for bridge design, complete in all respects. (One pedestrian and one vehicular bridge) 2 Carrying out soil investigation (drilling included) and geotechnical analysis, complete in all respects, including foundation recommendations and submission of a geotechnical report for bridge design. (one pedestrian and one vehicular bridge) 3 Detailed engineering design, drawings, BOQ, engineering estimates, bidding package etc 4 Miscellaneous (Light traffic load assessments, Survey Control and Setting Out Checks) 5 Construction supervision of two bridges for 6 months