Autoroute Dakar Saint-Louis Phase I

Adaptation Need

Climate change impacts cause damage to expensive transport assets and disrupt the services they provide. Damages to assets, loss of lives, and economic production loss associated with floods along the coast in 2017 were estimated to cost Senegal’s economy a total of $230 million or 1.4% of GDP. While engineering solutions are often prioritized, the resilience of infrastructure assets, and roads in particular, is driven in large part by downstream asset management.

GCA’s Added Value

To address climate risks, GCA proposed adaptation options include engineering solutions for reinforcing the road pavement and drainage systems, and non-engineering solutions for O&M, which could include early warning systems, adaptive maintenance planning, and ‘green’ solutions, such as active maintenance of vegetation along roads. The solutions were co-developed and finalized with the project’s stakeholders, including Agéroute and AfDB. The heavy maintenance investment options have financial returns ranging from USD 1.66 to 4.23 for each dollar spent. The solutions, which reduce key climate hazards and associated risks to the planned transport assets and surrounding natural environment, are estimated to reach USD 34.4 million and USD 37.3 million per year in 2050 for moderate (RCP4.5) and high-emissions (RCP8.5) global warming scenarios respectively.