Flood-Resilient Road Design Standards for the Sudd Wetland Region of South Sudan

March 18, 2026Open Access

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Key Points

The aim is to develop flood-resilient road design standards for the Sudd Wetland Region to address existing infrastructure deficiencies.
Conducted hydrological modelling and geotechnical investigations
Performed probabilistic flood frequency analysis with remote sensing data
Analyzed subgrade performance across three road corridors
Proposed design standards including embankment heights and materials
Identified subgrade CBR values between 2% and 8%, needing lime stabilization
Recommended minimum embankment heights of 1.2 m to address flooding
Proposed design yields a net present value of USD 4.7 million per kilometer over 25 years compared to conventional roads

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Develops flood-resilient road design standards in the Sudd Wetland Region, suggesting improved infrastructure resilience to flooding.

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Aduot Madit Anhiem (2026) studied this question.

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