Causeway in Kayes over Senegal river

Please indicate how to define this causeway over the Senegal river in Kayes.

I defined it as private road in order to avoid routing through it but maybe there is another better way to define it.

I wait for your suggestions.

Thank you in advance.

In french, the best translation for “causeway” is “chaussée inondable”.
Since it is a way could be sometime flooded, it should be a “4x4” + “not paved” road.

https://www.waze.com/fr/editor?env=row&lon=-11.43156&lat=14.45094&zoom=6&segments=395270612

Thank you for your answer and indications. The Causeway is already set to unpaved, Off-road / Not maintained.