N4 road (Senegal) need to be nearly 1000 metres long with 500 metres long access roads through the riverside swamps. An alternative (smaller) route is the N5 via Bignona and Banjul, crossing the Gambia river by ferry at Banjul and rejoining the N4 just south of Kaolack. N4 road (Senegal) The N4 road is the Trans-Gambia Highway extension in Senegal, which is the main connection between the Casamance area in the south and the capital Dakar. The road runs north from Ziguinchor in Casamance to Bignona, crossing the Casamance River. It runs north-east to Bounkiling and then north to traverse the country of
Plymouth-Banjul Challenge motorbikes on it through the desert - the challenge has now been laid down for another team to get a trailer through the desert and in 2006 two ambulances made it across. In the 2004/2005 event, a Swiss Team (Team Pintpullers) drove a Mercedes Van and a 125cc motorbike from Switzerland to Bangul. The Bike was ridden the entire time and reached Banjul where it was donated to the local police. There are even people who cannot drive taking part with one half of a Fiat Uno team learning to drive in the desert where he managed to crash it