<p>A bridge abutment is the most critical civil engineering infrastructure directly exposed to floodwater. Numerous studies have been conducted to mitigate scour around bridge abutments; however, limited research has focused on assessing flow dynamics and energy reduction around bridge abutments using eco-friendly methods. Therefore, the current research investigates energy reduction and flow dynamics around bridge abutments with recycled materials (brick waste (BW) and marble waste (MW)) under subcritical flow conditions. Experiments were conducted in a controlled laboratory setting to investigate various parameters, including water surface profile, energy reduction, reduction of fluid force index (RFI%), moment index (RMI%), and delay in floodwater arrival time. These parameters were investigated under different conditions, including without waste (WW) and with recycled materials. The result demonstrates that energy reduction increases as the Froude number (Fr) is increased from 0.13 to 0.22. Energy reduction increases up to 5.95, 6.5, and 6.27% in the case of WW, MW, and BW, respectively. The use of MW resulted in a maximum energy reduction, with an average energy reduction of 4.38%. The highest RFI% of 8.86% and RMI% of 12.44% were recorded when using MW during the experiments. The findings also show that a significant reduction in floodwater arrival occurred in the case of MW up to 68% compared to the case without an abutment in the channel. These findings offer valuable insights into the flow characteristics and energy dissipation around bridge abutments, thereby contributing to the design of sustainable and resilient hydraulic infrastructure.</p>