Grobler’s Bridges

Northern Cape, South Africa

Filter projects by:


  • Cities

    Cities EMIA

  • Commercial & Residential

    Mixed Use




  • Education

    Colleges & Universities


  • Energy

    Carbon capture, utilization and storage


    Grid modernization



    Microgrids and energy storage

    Offshore wind

    Portfolio Decarbonization and Climate Resilience


    Transportation decarbonization

  • Healthcare

    Clinical Hospital

    Life Sciences

    Senior Living

  • Industrial

    Agriculture, Food & Beverage

    Automotive & Heavy Equipment & Machinery

    Digital Infrastructure

    High Performance Logistics


    Mining & Metals

    Pharmaceutical/Specialty Chemicals

    Pulp & Paper

  • Justice

  • Leisure

    Arts and Culture

    Hotels and Resorts

    Themed Entertainment and Mixed-Use

  • National Governments

    Civil Works

    Disaster Resilience


    Infrastructure & Facilities

    International Development

  • Oil, Gas & Chemicals





  • Sports and Venues


    Convention Centers

    Olympics & Mega-Events

    Stadiums & Arenas

  • Transportation

    Air Cargo



    Connected and Autonomous Vehicles

    Freight Rail

    Highways & Roads

    Mass Transit

    Ports & Marine

    Transportation decarbonization


  • Water

    Dams & Hydropower

    Flood and coastal resilience

    Industrial Water

    Tunnels, Conveyance, Collection & Distribution

    Wastewater Treatment & Reuse

    Water Treatment

    Watershed and Ecosystem Management


  • AECOM Capital

  • Alternative Delivery Models

  • Architecture and Design


    Asset Advisory

    Climate Adaptation

    Community Engagement

    Interior Architecture

    Landscape Architecture


    Urban Analytics

    Urban Design

    Urbanism + Planning

  • Asset Management

  • Cities Solutions

  • Construction Management

  • Converged Resilience

  • Cost Management

  • Digital Infrastructure Services

  • Economics

  • Electric Vertical Takeoff and Landing Solutions

  • Engineering

    Ground Engineering

  • Environmental Services

    Air Quality Consulting and Engineering

    Climate Adaptation

    EHS Management Consulting and Compliance

    Environmental Contracting

    Environmental/Social Impact Assessment and Permitting

    Management Information Systems (MIS)

    Remediation, Restoration and Redevelopment

  • Fabrication

  • Finance

  • Industrial and Commercial Operations and Maintenance

  • IT and Cybersecurity

  • Mobilitics

  • Multinational Investment and Development

  • Pedestrian Modelling (North America)

  • Planning and Consulting

    Geospatial Services

    Pedestrian Modelling

  • Process Development & Implementation

  • Program Management

  • Public-Private Partnerships

  • Risk Management & Resilience

    Critical Infrastructure Protection

  • Simulation Models

    Rail Simulations

  • Strategic consulting

    People + Place Advisory

  • Tunnels, Trenchless Technology and Underground Infrastructure

  • Vertical Transportation Services (North America)

  • Visualization and Virtual Reality


  • Africa

  • Algeria

  • Antarctica

  • Australia

  • Azerbaijan

  • Bahrain

  • Bangladesh

  • Belgium

  • Bolivia

  • Bosnia and Herzegovina

  • Brazil

  • British West Indies

  • Canada

  • Caribbean-Puerto Rico

  • China

  • Colombia

  • Croatia

  • Czech Republic

  • Egypt

  • Eritrea

  • Finland

  • France

  • Germany

  • Greece

  • Greenland

  • Haiti

  • Hong Kong

  • India

  • Indonesia

  • Iraq

  • Ireland

  • Italy

  • Japan

  • Kenya

  • Kingdom of Saudi Arabia

  • Kuwait

  • Liberia

  • Lithuania

  • Malaysia

  • Maldives

  • Mali

  • Malta

  • Mauritania

  • Mexico

  • Monaco

  • Mongolia

  • Montenegro

  • Myanmar

  • Netherlands

  • New Zealand | Aotearoa

  • Norway

  • Oman

  • Panama

  • Papua New Guinea

  • Peru

  • Philippines

  • Poland

  • Portugal

  • Qatar

  • Romania

  • Singapore

  • Slovakia

  • South Africa

  • South Korea

  • Spain

  • Sri Lanka

  • Sweden

  • Switzerland

  • Taiwan

  • Turkey

  • Ukraine

  • United Arab Emirates

  • United Kingdom

  • United States

  • Vietnam

  • Worldwide

The Northern Cape of South Africa is a lush, green region split into innumerable channels of islands of varying length by the Orange River, the country’s longest river. Linking the communities of the Orange River Basin region together are three dilapidated arch bridges that lie across the lower part of the region near the town of Keimoes. Constructed during the Great Depression with labor-intensive methods using local materials to enhance employment within the local community, the 77-year-old Grobler’s Bridges were due for an upgrade by 2008.

During the early 1920s, Keimoes’ agricultural economy was booming — vegetables and fruits, especially grapes, were produced in abundance. To sell this produce at market, farmers needed an adequate path to cross the Orange River (which, when it overflowed, marooned the island’s communities for months at a time). While farmers forded the river during low-flow conditions or rowed across in pontoons, the need for an adequate footpath was pressing. So, in 1931, the Divisional Council funded the construction of Grobler’s Bridges to solve the community’s problem.

In 2008, the South African Road Agency SOC Ltd. identified the need to increase the traffic capacity and improve the safety of Grobler’s Bridges. They commissioned AECOM as project manager, detailed designer, contract manager and construction supervisor.

A detailed hydrological and hydraulic assessment of the complex Lower Orange River system undertaken by specialists from the University of Pretoria concluded that these bridges would need to be widened. Raising and widening the three bridges had to comply with heritage requirements, as the structures have significant historical importance. Accordingly, an in-depth heritage study, which formed part of the environmental authorization process, was performed on the structures.

Two of these bridges, consisting of multiple arch structures with six and three spans respectively, were raised by approximately 8 feet (2.5 meters) to prevent structure overtopping during larger flood events. The other, a ten-span arch bridge, was not required to be raised for similar flood events, so the existing deck was retained and widened in its current position. The extent of the widening of the three arch bridges was significant and required an additional overall bridge width of 25.5 feet (8.7 meters) to obtain the proposed width of 40 feet (12.4 meters).

AECOM’s team of experts upgraded a vital transportation link and enhanced the lives of the people to whom this road serves as a lifeline.