EDA, Ltd.
  • Home
  • SUPERVISION
  • ROAD DESIGN
  • GEOTECH. ENGINEERING
  • SURVEYING
  • MAPPING SERVICES
  • FEASIBILITY STUDIES
  • ASSET MANAGEMENT
  • PROJECT PHOTOS
    • Wilkinson Road Widening Project (5.2Km)
    • Wilkinson Road Widening Project: Additional Works (Bottom Mango - Congo Cross)
    • 25 km Freetown Streets
    • Tokeh-Lumley Road Project
    • Kailahun Township Road Project
    • Kenema-Pendembu Rehabilitation Project
    • Makeni (Panlap) - Kamakwei - Madina Oula Road Project
    • Pendembu-Kailahun Road Reconstruction Project
  • About Us
  • Contact Us
    • Report a Site Problem
FEASIBILITY STUDIES AND ECONOMIC ANALYSES
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Reconnaissance Studies
  • Identify settlements along the route
  • Identify water courses
  • Compile inventory of existing drainage structures
  • Identify preferred alignments
  • Assess condition of roadway and structures
  • Develop photograph log
  • Conduct interviews

​Traffic Surveys
  • Select location for counting stations
  • Develop data collection forms for the corresponding vehicle categories and monitoring period
  • Mobilize and supervise traffic enumerators
  • Post-process data

​Preliminary Engineering
  • Undertake data collection
  • Prepare preliminary plans showing road alignment
  • Undertake drainage study
  • Evaluate the drainage structure condition
  • Undertake pavement design to meet design life
  • Estimate volume of earthworks

​Cost Estimating
  • Develop Bill of Quantities with unit rates for corresponding line items
  • Estimate  quantities for preliminary cost estimate

​Economic Analysis
  • Estimate vehicle operating cost savings for each vehicle category
  • Collect information about the applicable Discount Rate, Traffic Growth Rate, and Design Life
  • Undertake analysis to evaluate the Internal Rate of Return, Net Present Value & Benefit-Cost Ratio for Base Case
  • Undertake Sensitivity Analysis 

Environmental Impact Assessment
  • Collect Environmental Baseline Data
  • Analyse the data collected
  • Conduct workshops
  • Prepare plans for mitigation
  • Prepare estimate of cost of mitigation measures
  • Prepare plans for resettlement and compensation
  • Preparation of Environmental Assessment Report

OUR SERVICES

​Supervision
Design
Surveying
Geotechnical Engineering
​Mapping Services
​Feasibility Studies
Asset Management

COMPANY

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Contact Us

SUPPORT

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Copyright © 2021
  • Home
  • SUPERVISION
  • ROAD DESIGN
  • GEOTECH. ENGINEERING
  • SURVEYING
  • MAPPING SERVICES
  • FEASIBILITY STUDIES
  • ASSET MANAGEMENT
  • PROJECT PHOTOS
    • Wilkinson Road Widening Project (5.2Km)
    • Wilkinson Road Widening Project: Additional Works (Bottom Mango - Congo Cross)
    • 25 km Freetown Streets
    • Tokeh-Lumley Road Project
    • Kailahun Township Road Project
    • Kenema-Pendembu Rehabilitation Project
    • Makeni (Panlap) - Kamakwei - Madina Oula Road Project
    • Pendembu-Kailahun Road Reconstruction Project
  • About Us
  • Contact Us
    • Report a Site Problem