The floodplain of the Grand Anse is cultivated, although relatively sparsely populated. Drainage Soil erosion and deforestation in the upper catchment, as well as inadequate infrastructure result in high rates of sediment build up in the drains in the town. The practice of building concrete covers for the drains impedes routine cleaning. Building materials are usually weak and construction techniques poor. Roofing The typical roofing material used in Jeremie is galvanised zinc sheets.
Thatch roofs are less common.