1. Doctoral Research Assistant, Dept. of Civil, Environmental and Architectural Engineering, Univ. of Colorado Boulder, Boulder, CO 80309. ORCID: .
2. Associate Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado Boulder, 1111 Engineering Dr., Campus Box 428, Boulder, CO 80309 (corresponding author). ORCID: .
3. Geotechnical Engineer, Taylor & Tomkin, 60 Cashel St., Christchurch 8013, New Zealand.