An example of a project in which mud is strategically disposed is the Mud Motor, where mud from the port of Harlingen is disposed in front of Koehoal to facilitate salt marsh growth in the Wadden Sea. More information can be found on the project page of the Mud Motor.
More information about the Mud Motor
Leaflet for the Mud Motor: https://www.ecoshape.org/uploads/sites/2/2019/10/Ecoshape_Slibmotor-Brochure-koehoalEN-4web-2.pdf
Final report for the Mud Motor: https://www.ecoshape.org/uploads/sites/3/2016/07/EcoShape-report-Mud-Motor-evaluation-based-on-monitoring.pdf
Ongoing project without any documentation yet: the Interreg project Suricates in the Port of Rotterdam, where they strategically dispose dredged sediments.