1. Dept. of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak 94300, Malaysia.
2. Dept. of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak 94300, Malaysia (corresponding author). ORCID: .
3. Associate Professor, Dept. of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak 94300, Malaysia; UNIMAS Water Centre (UWC), Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak 94300, Malaysia. ORCID: .
4. Dept. of Civil and Construction Engineering, Faculty of Engineering and Science, Curtin Univ., Sarawak Malaysia, CDT 250, Miri, Sarawak 98009, Malaysia.